How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask spivco Your Own Question
spivco
spivco, HVAC Technician
Category: HVAC
Satisfied Customers: 236
Experience:  18 years experience. Hvac and electrical licenses.
65783193
Type Your HVAC Question Here...
spivco is online now
A new question is answered every 9 seconds

My thermostat wire to my outdoor ac unit was accidentally pulled

This answer was rated:

My thermostat wire to my outdoor ac unit was accidentally pulled out. I need to now how to rewire it so the ac turns on.

spivco :

Hi. I'm Joe and I will be glad to help you out.

Customer:

Hi Joe, knowing what i've already done, what would you suggest?

spivco :

On an Ac only outdoor unit, you will only have the 2 low voltage wires, One will be the common, and the other will be the Y at the thermostat, so it sounds like you hooked them back up properly.

spivco :

The low voltage fuse has probably blown though.

Customer:

Where is the low voltage fuse? and how do I check to see?

spivco :

If you switch the fan to on at the thermostat, does the blower come on?

Customer:

No sir.

spivco :

That tells us that we don't have low voltage. If you look inside of the indoor unit, you should see a circuit board, there should be a small blade type fuse plugged into it, just pull it out to see if it's blown.

Customer:

OK. There was only one blade type fuse in there. It's blue with an E on it. And its completely blown.

spivco :

Thats the 3 amp fuse. When the wires got pulled out and touched each other it shorted the fuse. Replace the fuse and you should be working again.

Customer:

Is this a specialty fuse? I immagine that Home Depot/Lowes would carry them.

spivco :

You can get those about anywhere, auto parts houses, lowes, even most gas stations will carry them. It's just a normal car fuse.

Customer:

OK. I'm going to go get one right now. Once I get the fuse and install it, is there a sequence to start it, or just turn it on? I'll chat with you momentarily to see if it works.

spivco :

Just turn the power back on after you install it. It should start right up.

Customer:

ok, i'll be right back

spivco :

I'll be here.

Customer:

Joe, everything is working properly!!!!

Customer:

Thank you very much

spivco :

Glad I could help!

spivco and other HVAC Specialists are ready to help you