[exiledone1]

Hello Everyone,

Here is the problem. I own a rental property and the dog who belongs to the tenant decided to chew up the themostat wires that runs outside. Now, before this happened the A/C worked great and blew nice cold air.

Well, after discovering the dog ate the wires my A/C guy and me determined this was the first problem why the A/C was no longer working. So we replaced the wires and put a fence around the unit to keep this from happening again. Well, we went inside the house and switched on the A/C and nothing happened.

The unit inside the house also known as the furnance/air handle has power going to it, but doesn't come on. Even if you hold down the little black switch on the unit nothing happens. You know the one that typically gets pushed down by the front panel and turns off if you remove the front panel.

Themostate appears good and the outside will turn on if you physical touch the contacts. This house has fuses instead of breakers and all of them appear fine and test fine.

We bridged the themostat as well to see if anything would happen. I guess it's called bypassing and still nothing happened. My A/C guy believes the themostat isn't the problem though.

This unit also doesn't have a board. It is a rheem and has one of those fan relays instead of a board with the transformer built on it. Now, he thinks it's the transformer or the relay because when he test it out of the four different screws with wires attached to it one or two doesn't set his volt meter off.

So as a quick recap, dog ate wires, we replaced wires, a/c no longer works yet power is going to it. Outside will turn on if contact is manually pushed and themostat appears good.

Any ideas? Could it be the fan relay or transformer more then likely. Thanks in advance

[Joshdta]

If there is no control board, or inline fuse then the transformer is most likely bad. Is there 28 volts present at the transformer, or the stat?

[T-Top]

If you jumped the wires at the thermostat you got it narrowed down to three things. Transformer blown,more wires broke from the dog than you thought or you for got to to check for power at the blower section. Fire your A/C guy it's a 15 min. check.