no power to tstat,furnace or ac will not respond.

[michiganhvacapprentice]

My brother was weed wacking and hit the wires to the ac unit outside.I reconnected them and got nothing.reset all the breakers and still nothing,bought a new tstat and still nothing.for some reason the tstat is not getting power?Please help.

[Edited by michiganhvacapprentice on 09-09-2005 at 06:46 PM]

[aircooled53]

Need to check low voltage circuit, 24 volts was shorted to each other after the weedwacker had it's fun.

Furnace check transformer/3/5amp fuse sometimes will blow on the control board. If not check the blue and yellow wire from transformer to see if you have 24 volts.

1)Fix wires to outdoor unit; tape or replace.
2)Line Voltage to furnace or air handler.
3)transformer 24 volts control circuit.

[Workhorse]

If you're an apprentice in the HVAC business then you should be able to trace your power source. Do you have tools and meters? If you have a meter, start checking power, see if you have high voltage at the furnace. If you do then start tracing your low voltage. From what little you wrote it really sounds like you most likely reconnected your low voltage wrong or if it is correct when you reconnected the wiring (or when it got cut) you may have shorted out the transformer. Good luck and if all else fails, CALL A PROFESSIONAL!

[2hot2coolme]

Hope you saved that receipt on the Thermostat.

Simple troubleshooting on this one IF you're an apprentice.

If not, hope ya get zapped!

[Chad711]

You need a new furnace, and a new air conditioner. Might need new siding on the house too...

[tooldoc]

BASICS>>>>>>>> KISS>>>>>>>>>

If your an apprentice?? Troubleshoot before you go buy parts!!!!!!!!
Know what to buy after you solve the problem, dont buy parts hoping to solve the problem. This practice will turn you into a hacker!!!!!

[frank shelley]

Had the usuall amount this yr of svc calls to repair the weed eaten dog knawed condenser wires along with the popped fuses or shorted out controls.

Im big on installing in-line fuses on the condenser wire when were there to prevent a reoccurance of smoked controls.

[coolwhip]

Originally posted by aircooled53
Need to check low voltage circuit, 24 volts was shorted to each other after the weedwacker had it's fun.

Furnace check transformer/3/5amp fuse sometimes will blow on the control board. If not check the blue and yellow wire from transformer to see if you have 24 volts.

1)Fix wires to outdoor unit; tape or replace.
2)Line Voltage to furnace or air handler.
3)transformer 24 volts control circuit.

Did you get his address so you can hold his hand and walk him through it?

[Green Mountain]

Originally posted by 2hot2coolme
Simple troubleshooting on this one IF you're an apprentice.

If not, hope ya get zapped!

I hope he is an apprentice and dose get zapped !!!

[Workhorse]

He must of zapped himself since we haven't heard anything else out of him. Most likely stuck his tongue on the high voltage wires instead of using a volt meter.

New apprenitices.........


















what a mess!

[htg guy]

Originally posted by michiganhvacapprentice
My brother was weed wacking and hit the wires to the ac unit outside.I reconnected them and got nothing.reset all the breakers and still nothing,bought a new tstat and still nothing.for some reason the tstat is not getting power?Please help.

[Edited by michiganhvacapprentice on 09-09-2005 at 06:46 PM]

1.Put the old thermostat back on the wall
2.Turn off "all" the breakers.
3. Hand the phone book to your brother,so he can call someone qualified to repair it (without killing himself).
4. Sit down and have a beer with your bro till the guy arrives.
5. "Quietly" observe what the technician does to correct the problem.
6. Store the fix in your memory for use when you are no longer an hvacapprentice.
7. Get in your car and go home, while thanking the lord that your still alive.
8. Refuse all future repair jobs until you become qualified.

[amickracing]

c'mon? all the breakers? How's he gunna read the phone book in the dark? lol