Question about Heating & Cooling

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We have a air conditioning unit wired into the ceiling. Does not work. Every time we switvh it on it trips the electrical switch. Not sure what size and model number it is. Want to know what size fuse goes into the air con units and any other ifo would also be useful. Thanks

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Look for a swollen capacitor that is shorted out out a burnt compressor terminal.

Posted on Dec 18, 2008

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Florescent ceiling light on the garage ceiling will not go on


If the GFIC trips all outlets wired from it will lose power also. Check your wiring. You should also remove switches from the circuit containing outlets.

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I have two minka aire ceiling fans in the m bed rm, controlled by two separate wall remotes which are hard wired and have dip stwitches on there back sides, one fan/light works and the other will n


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The heating and cooloing system is not working. There is no heat or air conditioning coming through the vents.


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Dec 16, 2010 | 2005 Cadillac Deville

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I have 60 amp circuit breaker on my electrical a/c heater with a 45 amp fuse. I had the unit for 7 years with no problem. This month the 60 amp circuit breaker keeps tripping when the heater goes off. The...


You're unit is a 31/2 ton according to the numbers.Normally, breakers will only be in a half way posistion when tripped. Yes, under most conditions, the fuse will blow before the breaker trips. I have seen this many times, the breaker may be weak, burned, loose wires and so tighten wires, check the condition of the breaker.It sounds like the breaker even though it is 60 amps, is the problem and you should replace it with out hesitating. This will solve you're problem. When you pull the breaker out, look at the metal clips that snap in on the buss bar to see if they have been overheating.And the buss bar its self. You will know. I am sure this will take care of you're problem. Good Luck,
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No air flow from duct on forced air unit


If there is no air coming through all of ducts, there are several things to consider. If you turn your thermostat to fan on, does air come out? If so you may have a switching|thermostat problem. May need to change out, not really hard you just have to turn off electric mark wires as you remove and turn back on. If nothing changed, make sure the circuit breaker has tripped, sometimes its hard to tell so flip it all the way off then back on. Now try to turn on again. If it comes on you need to find out why it's tripping the breaker, merely resetting it can pose a danger for the future. Professionally servicing the unit is important to the longevity of the unit. Now if you find out that unit is coming on but no air is coming out, it could well be that a duct has blown free and is spilling into attic or crawl space. Sometimes the unit forms an ice block in the evaporative area of the unit. In this case it would need quite some time off to thaw. Also the fan motor may be burned out. In that case you would hear part of the unit working with no output. These are a few of the most common problems with this condition.Most of which needs to be addressed by a Tech

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Possible cross wiring


Whew! You'll need to trip the breaker that the fan/light is on and make sure that the circuit is dead. Turn the wall switch to "off". Gain access to your wiring connections at the ceiling. If you are operating the fan and lights via a single wall switch, proceed as follows: Your motor hot wire from the fan is black (usually, but verify all wire colors with your instruction manual, just in case they differ), and the light hot wire is usually blue. In your ceiling box, you will find black wires twisted together as well as white wires twisted together. Look for a single black wire that is not a part of the black twisted bundle. This wire will be the return wire from the wall switch and is the wire that will supply electricity to your fan and light when the circuit is powered up and the wall switch is "on". Connect the motor wire (black) and the light wire (blue) from the fan to the black wire. Locate the white wires from the motor and the light and connect these to the white bundle. Fasten all wires using wire nuts. Make sure that no parts of the wiring are left exposed. Electrical taping is a good idea, but don't let it be a substitute for the wire nuts. Be sure to connect the ground wire. Turn your breaker back on, and turn the wall switch to on. Verify proper operation of the fan and light by operating the pull chalns.
Hope this helps. Best regards, --WoobieDog--

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Air condition problem


What type of thermostat do you have? If the fan is not coming on and neither is the compressor, then is more than likely a problem with the thermostat of control units of the Air Conditioners. The fan will come whether the compressor does or not if the thermostat and control unit are working correctly. Check for twelve volt at the control unit of the air conditioner ceiling unit. (Red Wire, should be labeled)

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Central air conditioner doesn't turn on... Any suggestions?


If the compressor turns off and won?t come back on during a very hot day, the unit may have built up a high "head" pressure and the high-pressure limit switch may have tripped. This is usually located right inside the access panel on the compressor unit. Simply push the button to return it to operation. If your central air conditioner doesn't go on automatically: 1) Be sure the thermostat is set to "cool" and set below room temperature. 2) A central air conditioner should be on a dedicated 240-volt circuit; check the main electrical panel and any secondary circuit panels for a tripped breaker or blown fuse. If you find the problem here, reset the breaker or replace the fuse. 3) Make sure the furnace power switch is turned on and that the outdoor condenser's power switch, mounted on the outdoor unit, hasn't been shut off. Also be sure the 240-volt disconnect next to the compressor (in a metal box, usually mounted on the house wall) hasn't been shut off. 4) Turn off the power to the air conditioner and check the thermostat. 5) Remove the thermostat's cover and unscrew the wire from the Y terminal. 6) Turn the power back on. 7) Holding the wire by its insulation, touch the bare end to the R terminal and hold it there for about 2 minutes. If the compressor kicks on, the thermostat is faulty; replace it or call an air conditioning technician. If the compressor doesn't go on when you hold the two wires together, turn the power back off and call a service technician.

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