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Central AC/Heater inop. HELP!!!
mystryman
Member Posts: 577 ✭✭✭✭
Ok Everyone,
My dog "border collie puppy chewed the outside AC unit 24 volt wires. I repaired them and still nothing will come on. No outside unit or inside blower at all. I did test the transformer and it only has 16 volts coming out instead of 24. Thermostat is clicking like its working but nothing will come on?
Suggestions please!!!!
My dog "border collie puppy chewed the outside AC unit 24 volt wires. I repaired them and still nothing will come on. No outside unit or inside blower at all. I did test the transformer and it only has 16 volts coming out instead of 24. Thermostat is clicking like its working but nothing will come on?
Suggestions please!!!!
Comments
Are your getting 220 to the unit ahead of the relay?
Does the relay get voltage when the thermostat clicks on?
Does the furnace fan start when the fan switch is switched to on?
We had chipmunks chew through the wire once. I spliced it and had a similar problem. Turned out there was one spot that did not look damaged, but was shorting inside the insulation. I went ahead and pulled a whole new cable, problem solved.
Had the same thing just happen on a submersible well. Pump was not bad but the wire going down to it was.
It's possible that there is a blown fuse on the control board in the blower compartment, usually spade type to protect the system/stat from shorted 24 volt. that would cause it to not operate in heat or cool mode
if you have no power at all probably a blown fuse on the board. I don't know much about these things but I did sleep at a holiday Inn last night.
If you click the thermostat to "fan", does the air handler work? I.E. do you hear air being sucked into the return vent? and air being blown out of the ducts?
If he doesn't have the low voltage to close the contacts on the fan relay the indoor fan won't run. He has already said he has 16 volts on the low voltage side which means he has voltage on the high voltage side. Since the only thing that happened was the puppy chewed the low voltage wires he has a short in the repair causing the voltage drop or the transformer has been damaged (which I think is unlikely) since he is getting 16 volts.
quote:Originally posted by JustC
why would that stop the air handler from running??
If you click the thermostat to "fan", does the air handler work? I.E. do you hear air being sucked into the return vent? and air being blown out of the ducts?
Thank you ALL for the advice.
Damn dog......I still love him though. Hes a good dog that just got bored.
Learn something new every day, I would not have thought the blower fuse would have kept the transformer from showing the correct voltage, go figure.
If he doesn't have the low voltage to close the contacts on the fan relay the indoor fan won't run. He has already said he has 16 volts on the low voltage side which means he has voltage on the high voltage side. Since the only thing that happened was the puppy chewed the low voltage wires he has a short in the repair causing the voltage drop or the transformer has been damaged (which I think is unlikely) since he is getting 16 volts.
quote:Originally posted by JustC
why would that stop the air handler from running??
If you click the thermostat to "fan", does the air handler work? I.E. do you hear air being sucked into the return vent? and air being blown out of the ducts?
By blower, do you mean the air handler or the fan on the heat pump??
I know little to nothing of electricity, so I can't make sense of your explanation. Electricity (voltage) is something I have never taken the time to learn[V]