After inspecting the belt, there can only be two things left that could be happening: 1. The clutch is not getting a signal to turn on. This indicates some form of wiring problem. -or-. 2. The AC compressor is getting a command to turn on but is no longer able to, which would indicate that it needs replacing. 2.Sep 16, 2005. Fort Lauderdale, Florida. went to try & fix my a/c today. its fully charged. but the compressor clutch wont kick on unless i jumped the relay. Had the A/c machine hooked up to it and also noticed that my LOW side pressure is going negative ( into vacumm ) ...i just replaced the expansion valve. I sucked the A/C out for 30mins with ...Registered VIP. 5+ Year Member. Aug 3, 2007. #3. check if there is voltage going to the compressor clutch, if there is, and it still doesnt kick on, you may need to replace the clutch. I had the same problem and it was the clutch. Got it replaced for $90.The important thing to know is how to handle it. If your AC unit is humming but not turning on, the most likely issue you’re having is a broken capacitor. This can be fixed by replacing the capacitor. If you’re unlucky, your AC unit’s sudden “quit” could have to do with a broken motor. In this case, it’s often better to replace the ...When the RV air conditioner compressor not coming on, a clamp-on ammeter is a perfect tool to check its health. The compressor has an ampere rating and the reading on the ammeter should not cross that number. If it does, the compressor is toast. Examine the compressor with a clamp-on ammeter. If you are sure that a bad …Here are 5 main things that can stop your ac compressor from turning on. 1. Power. If you notice your compressor not working after turning on your thermostat, there could be a power cut to your outdoor unit. Head over to check your condenser unit and find out if both your compressor and the fans are not working. Let’s take some time and explain all 8 reasons why your car’s air conditioning compressor won’t turn on. 1. Low Refrigerant in the AC System. This is by far the most common issue as to why your AC is not working. Low amounts of AC freon refrigerant will be detected by the AC pressure sensor switch, causing the AC not to kick in. Make sure your furnace is turned off. Check the switch on your unit. Head to the circuit breaker panel and open it up. Look to see if you see a tripped breaker. If you do see a breaker that has been flipped. Push the switch to OFF and then to ON. Turn the power back on the furnace.Sep 23, 2020 ... Toggle to the “Off” position on your thermostat. · Reset the breaker. · Wait for half an hour. · Turn the thermostat to “Cool” mode. · ...Yup. Low only. When I go to recharge after pulling the vacuum, I open the valve on the can, then purge the line. Start up the truck with AC on, circulate on, and set to coldest. Then slowly open the low side. The pressure on the low side goes right up to ~67. Compressor won't kick on though so very little to no r134 is getting pulled in.My system was too low and the low pressure switch would not allow the compressor to kick on. Really not hard to do but you can jump the compressor directly by putting a jumper wire in the terminals where the A/C relay is (fuse box under the hood) to kick on the compressor and fill her up with 134a (with car running and A/C on full blast).If you own a split AC, then it is possible that your outside unit where the compressor is housed is not receiving power. The reason why the fan is still working is that it is not an issue for the inside unit. You will need to have some electrical knowledge to fix this problem. You will need to examine the wiring connecting the two units.Cooling, Heating, Ventilation & A/C - ac comp wont kick in - :-huh i have a 2000 f250 reg cab 5 speed w/5.4 gas motor, i have tried to get my ac to work but no luck. wanted to see if some of you folks could help. the system had around 85 psi static pressure, i bypassed the low & high switches with no luck. i have not...Sep 2, 2023 · From underneath the glove box, disconnect the three A/C electrical connectors. 10. Disconnect the electrical connector and retainer located on the floor between the two front seats. 11. NOTE: To make sure of proper location during installation, index-mark the position of the steering column shaft before removing the pinch bolt. If your AC is in a window that gets direct sunlight in the heat of the day, it will have to work harder to cool your space. If you have a choice, move it to a shadier spot. If you don’t, keep ...Football’s onside kick rule states that the kicking team can recover a kickoff and retain possession after the ball travels 10 yards from its kicking point. Onside kicks are a way ...231 posts · Joined 2009. #10 · Mar 14, 2018. Do not jump a wire to the clutch. If your refrigerant is too low the system won't allow it to come on as a safety precaution. The refrigerant is what lubricates the compressor, there is a switch that senses pressure for that reason. If you run the compressor without that lubrication you will kill it.Are you a military aspirant looking to ace the Armed Services Vocational Aptitude Battery (ASVAB) test? If yes, then you’ve come to the right place. The ASVAB is a comprehensive te...Jul 8, 2020 ... If your home's central air isn't working at all, check the main electrical panel in your house. It could just be a tripped breaker or blown fuse ...On top of the dryer is a switch that turns your compressor off when the pressure in the evaporator drops doen to about 20psi or so. When you short the contact together on the connector, the compressor should come on. Pull vacuum and ensure it holds. Make sure both the high and low ports are open to the vacuum pump.An AC cannot work without a compressor. A compressor is a vital component of your car’s cooling system; without it, your AC won’t start. It is just as important as the car’s engine for your performance. Here are other possible causes of a compressor refusing to come on. – Low Refrigerant ChargeThanks. The first thing to do is check the system static pressure. If it's below about 45 psi, then the system charge is low and the cycling switch won't allow the compressor to run. If the static pressure is above 45 psi, there's likely an electrical issue. Also, turn on the AC and tap the clutch face with a hammer handle or similar tool.Ac clutch not kicking on. I have 5.7L V8. I have checked the ac systems pressure and it was fine at 55lbs. I replaces the fuse, relay and low pressure switch and the clutch/compressor still wont turn on. I by passed the low pressure switch by putting a hot wire from the battery to the conecter off the switch and the clutch engaged right away ...Troubleshoot Your Aircon: 8 Common Reasons Why Your AC Won't Turn On · Potential Cause 1: Power Problems · Potential Cause 2: Faulty Control Board · Potent...8 Common Causes Of “Air Conditioner Not Blowing Cold Air” We have broken down each cause into 3 sections to help you out: What part of AC might be causing the “not blowing cold air” problem.; How to check which part of AC caused the indoor unit to not blow cold air.; How to fix the problem (either DIY or if you need to call an HVAC professional).; In …This question is about the ACE Elite™ Visa® Prepaid Debit Card (Pay-As-You-Go) @kendallmorris • 04/13/18 This answer was first published on 04/13/18. For the most current informati...46 posts · Joined 2008. #16 · Jul 16, 2009. Yes that is the correct switch. If you are low of freon it will still cool when you jump the switch, but the switch keeps it from coming on if it is low because it will burn up the compressor with no freon circulating.Aug 1, 2016 · My AC UNIT is set to 73 degrees. My AC will not switch on until the thermostat says 77 degrees, sometimes warmer. I feel like it is a sauna in here. When it finally kicks on, it cools for a couple of hours until it cool to 71 degrees (2 degrees under set temp). I am an ice cube at this point because it has been running so long. Sounds like you have a leak somewhere in the AC system. If the pressure gets too low, the compressor will not kick on and hence will not draw in any refrigerant. AC leak stopper is generally snake oil. You need to have the system diagnosed and the leak repaired. Warning, depending on where the leak has occurred, it may be expensive to …Check to see if your circuit breaker is tripped to the OFF position. Make sure the outdoor disconnect switch on your outdoor unit is on the ON position (this switch is usually a small metal gray box mounted on a wall near the outdoor unit). When your thermostat is activated, the blower motor in your furnace or air handler should run (make sure ...AC unit won’t turn on. Switch is on. Breakers are good. Thermostat is on. Took off the outer panel to the unit and pressed the reset button. When I press and hold the reset button it turns on and sounds fine. When I release the reset button it shuts off. The only time it kicks on is when I hold the reset button.Problem # 1: Capacitor. When an HVAC unit is equipped with a PSC (Permanent Split Capacitor) blower fan, a capacitor is required to both start and run the motor. The capacitor's job is to store and then discharge electrical energy in order to create an artificial phase of electricity for the blower motor power supply. Testing the capacitor ...Bad Compressor Capacitor. If your ac compressor won’t turn on but your fan is running, this could be a sign that the capacitor that powers your compressor is not working. Newer outside condenser units come with dual capacitors, one part that powers the compressor and the other one that powers the fan motor. With time, any of these two …Look at the diagram below, the A/C Pressure switch connector needs to be tested. Finally, there is the A/C Thermostat switch just next to the blower... if that device is what actually engages when you turn your A/C on, if this doesn't engage the compressor won't receive the signal for power output. sean1121 said:If the air conditioner unit is blowing air inside but the outside unit is not running, there are a few possible causes. The most common cause is that the breaker has tripped or blown. Another possibility is that the condenser coils are dirty and need to be cleaned. Finally, it could be that the Freon levels are low and need to be refilled.If both pieces aren’t operating in tangent, the AC unit won’t produce cool air. Whether the AC unit turns on and you can’t feel it working, or it’s not starting at all, don’t …Things You Should Know. If the screen is dark or blank, replace the batteries and check the circuit breakers. Ensure the furnace and air conditioner are turned on, and the thermostat is wired correctly to your HVAC system. Resetting your thermostat can fix programming issues and keep it in sync with your HVAC system.Aug 14, 2019 · Sounds like you have a leak somewhere in the AC system. If the pressure gets too low, the compressor will not kick on and hence will not draw in any refrigerant. AC leak stopper is generally snake oil. You need to have the system diagnosed and the leak repaired. Warning, depending on where the leak has occurred, it may be expensive to repair. If you’re living in the city, you know how important it is to have a car that can handle the daily grind. Between traffic, tight parking spaces, and constant stop-and-go driving, y...No response from the Unit (won’t turn on, no air flow at all) Loud or clunky sounding noises ; Ice forming on or around your AC unit; Leaking AC unit (1.) Let’s tackle first the “no response from the unit” section. I’d first check to see if your AC unit is getting enough power to the systems.Check the air conditioner circuit breaker and verify that it is not tripped. Reset the tripped breakers. ... much of the heat absorbed from your home won’t be ejected, and the pressure will rise and cause the high-pressure switch to kick in and discontinue the pressure from rising. Case #2: AC compressor Not Working, but Outside Unit Fan is ...May 14, 2008 · You use a 'jumper' wire. Unplug the switch from the connector. Insert the jumper wire. The compressor should come on. Use your freon pressure gauge to judge the freon level in the system. If the gauge indicates that the freon charge is adequate, then you have a bad switch. (The AC must be turned on in the cab....I am just covering all the bases.) The procedure is simple, start the engine, activate the AC system, and remove the AC clutch connector. Measure the voltage coming to the connector with a multimeter, and if everything is activated properly, you should see 12 to 14 volts coming to this wire. If there is a ground wire, you should also check the ground.01 - Incoming Power Problem. Confirm the air conditioner is plugged in and there is power at the wall receptacle. If it has a 120 volt outlet, you can plug another small appliance into the recepticle to confirm there is power. For 220 volt units you will need to use a multimeter. If there is no power, confirm the circuit breaker has not tripped.Jun 1, 2010 · My system was too low and the low pressure switch would not allow the compressor to kick on. Really not hard to do but you can jump the compressor directly by putting a jumper wire in the terminals where the A/C relay is (fuse box under the hood) to kick on the compressor and fill her up with 134a (with car running and A/C on full blast). A faulty thermostat can prevent your air conditioner from turning on. Make sure the thermostat is set to a temperature lower than the current room temperature. The Short Answer Is: A homeowner's heat pump compressor may not turn on due to various reasons, including a malfunctioning thermostat, a tripped circuit breaker or fuse, a faulty capacitor, or issues with the contactor. Problems with the start relay, temperature sensors, or the compressor itself can also contribute to the failure. See full list on cielowigle.com July 5, 2023 Cooling. If your air conditioner is not working, check the fan on the outside unit. If it’s buzzing, but the fan is not spinning, you may have one of two issues. First, If the fan on your outside unit is not spinning, do a visual inspection to ensure it is not jammed. If there is an exceptional amount of dirt or debris around the ...Call 727-592-8479 to Schedule your Appointment. 7. AC Motor Failure. The capacitor is the part that charges your air conditioner’s motor. If your AC is older than 15 …Oct 20, 2020 · Check that the heating system is turned on. If you have a heat pump, verify that it is set to heat rather than cool or automatic. 4. Check the Pilot Light. If you have a furnace, it will not turn on if the pilot light is out. A faulty or dirty pilot light or sensor may cause this problem. A/C Compressor wont kick on. Okay so i have owned my 2013 Si coupe for a couple months now, and the a/c was always pretty dang cold. Now lately when i turn on either the a/c or max a/c button, i can see the radiator fans kick on, but the clutch on the compressor does nothing. I made sure it was connected P), i also checked the 134a …And the high pressure switch should be next to the compressor on the line running into it. To check it all you have to do is use a piece of wire and just jump the conector to make it click on. If it doesnt do anthing then there is goin to be a bad wire. But it should make the compressor kick on.Incorrect settings can lead to the compressor not kicking on. Mode: Make sure your thermostat is set to ‘Cool’ and not ‘Heat’ or ‘Off.’. Temperature Setting: The set …Sep 2, 2023 · From underneath the glove box, disconnect the three A/C electrical connectors. 10. Disconnect the electrical connector and retainer located on the floor between the two front seats. 11. NOTE: To make sure of proper location during installation, index-mark the position of the steering column shaft before removing the pinch bolt. Troubleshoot Your Aircon: 8 Common Reasons Why Your AC Won't Turn On · Potential Cause 1: Power Problems · Potential Cause 2: Faulty Control Board · Potent...If the system is at correct charge level the low side pressure will show above normal range. But if the compressor is not turning on due to low charge, then it's drastically low and that will be obvious on the gauge. Connect the kit, start the car and turn the AC on, then just add refrigerant until the low side pressure comes up enough to kick ...Codesignal is an online platform that helps employers assess the coding skills of potential candidates. It is a great way to quickly and accurately evaluate a candidate’s coding ab...A/C compressor wont kick on. 2004 X 5.4. Turn **** to A/C, MAX A/C, or defrost and nothing. I checked the 10 amp fuse in the panel. it's fine. I can hear the relays working when I turn to defrost or to a/c. Last summer I added some 134A to it to top it off. The defrost worked fine all winter long.Call 727-592-8479 to Schedule your Appointment. 7. AC Motor Failure. The capacitor is the part that charges your air conditioner’s motor. If your AC is older than 15 …Aug 15, 2006 · 464 posts · Joined 2012. #21 · May 20, 2013. You probably need to pull a vacuum on it to get enough refrigerant in to close the low pressure cutoff switch, so the compressor will take the charge. The vacuum will also boil off any moisture present in the system, so it doesn't sludge and form acids in the system. This question is about the ACE Elite™ Visa® Prepaid Debit Card (Pay-As-You-Go) @kendallmorris • 04/13/18 This answer was first published on 04/13/18. For the most current informati...A “cool on” message can also appear if the thermostat logs out or times out on its own. Wait 5 minutes, restart your thermostat, and identify and replace fuse or wire damage to make it return to normal. Thermostats can also flash a “cool on” message if it is working hard to produce cool air. This can happen even if there isn’t an ...Solution: Re-light the Pilot Light. Turn the gas valve to PILOT position. Press and hold the BYPASS button for several seconds to let gas into the pilot. While holding the BYPASS button, use a ...jump off the low pressure switch and see if the compressor kicks on or jump it off in the relay box. 98 zj,4.0, select trac, 2"bb, 31's, safari rack, crager soft 8s, silverstar headlights, hypertech programmer, and k and n air filter. Like. 8. 84961 Discussion starter.231 posts · Joined 2009. #10 · Mar 14, 2018. Do not jump a wire to the clutch. If your refrigerant is too low the system won't allow it to come on as a safety precaution. The refrigerant is what lubricates the compressor, there is a switch that senses pressure for that reason. If you run the compressor without that lubrication you will kill it.8) Ensure the Condensate Drain Isn’t Clogged. If you don’t see ice on the air conditioner, the condensate drain could be backed up. When clogged, your AC won’t turn on as a safety …Why Won't My Air Conditioner Turn Off? · 1. Incorrect Thermostat Settings · 2. Bad Thermostat · 3. Electrical Problems · 4. Stuck Fan Limit Switch &...01 - Incoming Power Problem. Confirm the air conditioner is plugged in and there is power at the wall receptacle. If it has a 120 volt outlet, you can plug another small appliance into the recepticle to confirm there is power. For 220 volt units you will need to use a multimeter. If there is no power, confirm the circuit breaker has not tripped.Solution: The easiest way to check whether you have a broken thermostat is to bypass it for a moment. Turn the power off, unplug the red and white wires from the thermostat, and connect the wires directly. Then turn the furnace back on and see if heating resumes. If so, you need to fix or replace the thermostat. 3.3 posts · Joined 2011. #15 · Jun 18, 2011. A/C Compressor will not come on. I replaced the CCRM located inside the passenger side inner fender, the A/C control head. The A/C is fully charged. Also, the Coolant fan will not continue to stay on when the Defroster or Max air is turned on.The Shut-Off or Emergency Switch Is Off. Another switch that could cause your outside AC unit not to turn on is the emergency or shut-off switch next to the unit. This switch allows the cooling system to be turned off from the exterior. Check to see if this switch is in the “on” position. You can also press the reset button on the outside ...231 posts · Joined 2009. #10 · Mar 14, 2018. Do not jump a wire to the clutch. If your refrigerant is too low the system won't allow it to come on as a safety precaution. The refrigerant is what lubricates the compressor, there is a switch that senses pressure for that reason. If you run the compressor without that lubrication you will kill it.Nov 9, 2011 · 2.8l. Transmission. Automatic. Mar 16, 2012. #3. You can trace it with a test light with the engine running turn the a/c on and see if your getting power to the clutch, If so the clutch is bad. then work your way back to the computer. To check if the system is dead carefully depress one of the schrader valves lightly to see if refrigerant comes ... Football’s onside kick rule states that the kicking team can recover a kickoff and retain possession after the ball travels 10 yards from its kicking point. Onside kicks are a way ...01 - Incoming Power Problem. Confirm the air conditioner is plugged in and there is power at the wall receptacle. If it has a 120 volt outlet, you can plug another small appliance into the recepticle to confirm there is power. For 220 volt units you will need to use a multimeter. If there is no power, confirm the circuit breaker has not tripped.If you're visiting Palma, Mallorca, you'll want to check out this AC Hotel property for its prime location, good service, and great value. We may be compensated when you click on p...I’m having issues with my furnace sometimes not kicking on. I hear the furnace start, But then it will not fire. ... Goodman GMH95 furnace won't ignite. 0. ... doesn't start. 3. Garage Furnace Runs Only 45 seconds at a time. 0. Furnace blower sometimes won't come on. 0. No indoor blower in AC mode. Hot Network Questions …2.8l. Transmission. Automatic. Mar 16, 2012. #3. You can trace it with a test light with the engine running turn the a/c on and see if your getting power to the clutch, If so the clutch is bad. then work your way back to the computer. To check if the system is dead carefully depress one of the schrader valves lightly to see if refrigerant comes ...1. Clogged Air Filters. If you haven’t changed your air filters in a while, the accumulation of dirt and debris is going to obstruct the airflow. In turn, this will cause …You use a 'jumper' wire. Unplug the switch from the connector. Insert the jumper wire. The compressor should come on. Use your freon pressure gauge to judge the freon level in the system. If the gauge indicates that the freon charge is adequate, then you have a bad switch. (The AC must be turned on in the cab....I am just covering all the …5. Having a bad capacitor can put an extra strain on the motor. An AC is actually a pretty simple device when it comes down to it, so the only replaceable parts (in this situation) are the fan and the capacitor. Some units have a control board that handles some timing and sensors. That can go bad but it's not as common (in my limited …A/c not working compresser won't even kick on. A/c not working compresser won't even kick on. Fuse under dash and hood both fine. Tried tapping clutch but no luck. Ran fine last summer. Answered in 21 minutes by: Chevy Mechanic: Dr.Automotive. Dr.Automotive. Category: Chevy.Compressor Malfunction. One of the most common causes of an AC that won’t turn on is a faulty compressor. The compressor is the heart of the air conditioner, as it is responsible for circulating the cooling refrigerant throughout the system. If the compressor is not functioning properly, it can cause the AC not to turn on or only to blow …Apr 24, 2013 · Check for Power. The first and most obvious thing to do when your compressor won’t start is to make sure that the unit is receiving power. It is always possible that a fuse has been blown or that a breaker has been tripped. If such issues occur regularly, you should have an electrician take a look. It isn’t normal for the fuses and breakers ... I admit, I went the China route from eBay. However, I have had issues with two new Fan Control Modules. The FCM is located below the battery. My AC compressor clutch will kick-in with the Old OE FCM but the new fans will not come on. So, I installed the "new" FCM only to learn that the fans worked fine but the AC Clutch would not kick-in.Most people use the term AC condenser to refer to the part of the air conditioning system that sits outside the home, even though this part of the system has more components that j...
Aug 3, 2007 · Registered VIP. 5+ Year Member. Aug 3, 2007. #3. check if there is voltage going to the compressor clutch, if there is, and it still doesnt kick on, you may need to replace the clutch. I had the same problem and it was the clutch. Got it replaced for $90. . Best crossovers suv
Sounds like you have a leak somewhere in the AC system. If the pressure gets too low, the compressor will not kick on and hence will not draw in any refrigerant. AC leak stopper is generally snake oil. You need to have the system diagnosed and the leak repaired. Warning, depending on where the leak has occurred, it may be expensive to …Here’s how to reset your AC’s thermostat after a power outage: Turn off the thermostat and circuit breaker – Look for the system switch on your thermostat and circuit breaker and turn them off. Wait for 30 minutes before switching your AC’s thermostat back on – It takes roughly 30 minutes for your air conditioner’s internal ...Most people use the term AC condenser to refer to the part of the air conditioning system that sits outside the home, even though this part of the system has more components that j...Feb 10, 2022 · Bad Compressor Capacitor. If your ac compressor won’t turn on but your fan is running, this could be a sign that the capacitor that powers your compressor is not working. Newer outside condenser units come with dual capacitors, one part that powers the compressor and the other one that powers the fan motor. With time, any of these two parts ... We got prompt service when our air conditioner stopped working. Technician J.C. stuck around to investigate the issue and made sure our system was up and running. Very grateful to Howard Air and …After tightening wires that appeared loose or replacing any corroded wires, check to see if you can turn on your AC. 5. Double-check the placement of your thermostat sensors. Another potential issue to consider is the placement of your thermostat sensors. The thermostat sensors tell your thermostat what the temperature of your home is.An AC cannot work without a compressor. A compressor is a vital component of your car’s cooling system; without it, your AC won’t start. It is just as important as the car’s engine for your performance. Here are other possible causes of a compressor refusing to come on. – Low Refrigerant ChargeCheck to make sure it's set to your preferred temperature and that it is set on Auto and Cool, so the fan and compressor will kick in and blow cool air when the ...The AC unit turns on but doesn’t cool: If your unit turns on but doesn’t cool, check your thermostat to be sure that it is set at the correct temperature. You should then check the condenser and evaporator for dirt and clogging. If too much dirt builds up, your unit may not turn on at all. The condenser unit returns on and off repeatedly ...On top of the dryer is a switch that turns your compressor off when the pressure in the evaporator drops doen to about 20psi or so. When you short the contact together on the connector, the compressor should come on. Pull vacuum and ensure it holds. Make sure both the high and low ports are open to the vacuum pump.Look into your air filter’s housing and check the markings on your filter. If your furnace blower won’t turn on, check to confirm the arrows on the air filter are pointing in the correct direction. When the arrows are pointing in the wrong direction, change the orientation of the filter. Next, check the vents around the blower.Incorrect settings can lead to the compressor not kicking on. Mode: Make sure your thermostat is set to ‘Cool’ and not ‘Heat’ or ‘Off.’. Temperature Setting: The set …If you're visiting Palma, Mallorca, you'll want to check out this AC Hotel property for its prime location, good service, and great value. We may be compensated when you click on p...The important thing to know is how to handle it. If your AC unit is humming but not turning on, the most likely issue you’re having is a broken capacitor. This can be fixed by replacing the capacitor. If you’re unlucky, your AC unit’s sudden “quit” could have to do with a broken motor. In this case, it’s often better to replace the ...Check the fuel in the propane tank if you have a propane furnace. 3. The circuit breaker was tripped. Circuit breakers can be tripped when something short-circuits or by an electrical surge, a fault, or a defective fuse. Another possibility is someone turned the breaker off and forgot to turn it back on. Solution.Jun 1, 2023 · Top 6 Reasons Why Your AC compressor Is Running But Won’t Take Freon. 1. Leak In The System. Leaks are one of the most common causes of air conditioning problems. Your vehicle’s AC compressor has internal bearings that prevent the freon (or refrigerant) from leaking out of the compressor. The compressor’s job, in turn, is to pressurize ... Jul 8, 2020 ... If your home's central air isn't working at all, check the main electrical panel in your house. It could just be a tripped breaker or blown fuse ....