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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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We have two AC units. The fan on one is not working. Tried

Customer Question

We have two AC units. The fan on one is not working. Tried turning breaker off and back on. Is there a reset, emergency switch or something I can do?
model #38ckco36340
serial # *****
Submitted: 1 year ago.
Category: HVAC
Expert:  BillyHvac replied 1 year ago.
Hello,
Is the compressor in the bottom of the unit running?...but just not fan...or nothing is running?
Customer: replied 1 year ago.
Nothing is running
Expert:  BillyHvac replied 1 year ago.
Have
you checked fuses in power box by the unit yet?
Customer: replied 1 year ago.
We have a breaker box. No fuses.
Expert:  BillyHvac replied 1 year ago.
in the disconnect box by the outdoor unit...many have fuses
Customer: replied 1 year ago.
There is a box and I opened it. It says "off" and "on." I didn't see any fuses, just the off and on.
Expert:  BillyHvac replied 1 year ago.
Thank you....and at that point do you have 240v?
Customer: replied 1 year ago.
There are two breakers and both are 120
Expert:  BillyHvac replied 1 year ago.
but do you actually have 240 volt to unit.
We are missing either 24v signal or 240v so we need to track,,,isthis an indoor attic blower?
Customer: replied 1 year ago.
I stated the last answer wrong. I'm sorry. There are 4 breakers and each are 120. We have two units outside but the blowers are in the attic.
Expert:  BillyHvac replied 1 year ago.
thank you,
look in attic and tell me if water is under unit in pan....attic units have a safety switch to prevent water damage.
is indoor blower running
Customer: replied 1 year ago.
It will take me a minute to go in the attic. I think I heard the indoor blower running but I turned it off at the thermostat since the temp was rising. I was afraid it would burn out.
Customer: replied 1 year ago.
There is no water in the pan
Customer: replied 1 year ago.
Are you there?
Customer: replied 1 year ago.
Are you done helping me?
Customer: replied 1 year ago.
I have responded back to you three times. I am not satisfied with the "help" you have given me.
Expert:  Phil replied 1 year ago.

Hello, I will see what I can do for you.

Earlier you said that the power to the outside unit was OK since it read 120 (I assume you meant 120volts)

If you measured each leg of the power to ground and got 120v, and did not measure **between** the two legs (Line 1 and Line 2) you could easily have one bad leg, and the read you are getting would be the good leg **feeding back** and giving you the 120v read to ground.

Tell me what voltage you get reading between Line 1 and Line 2 at the outside unit disconnect.

We can go from there.