air conditioning issues

[JMK]

Hi -

My wife and I are temporarily in an apartment situation while our insurance company decides what to do with our Hurricane Katrina-damaged

house.

This is an old house and the blower unit for the A/C (which I guess is usually aligned with the furnace in most homes) is outside with the A/C. In the

past week we've had the A/C repair guys out here five times. All are related to the blower quitting - the A/C unit itself is still going but the actual blowing of air is nonexistent. Everytime I or the landlord call the A/C guys, all they do is replace the blower unit, which then works for approximately 10-20 hours and then quits. Not only that but the air that is being blown in is redolent of a stiff breeze on a summer's day on Lake Michigan, not the cold quasi-Arctic blast I am used to. I have pleaded with these guys time and again to check the freon or the line pressure or some other thermodynamic jargon, but something just happens while I am at work and it's "fixed" when I return.

I have also noticed an unusual burning smell when the blower decides to commit suicide.

Any hints or things I should get these guys to check?

Thanks,

JMK

[h1ebs]

I wonder if they have 220 instead of 110 going to it, see what the blower motors name plate calls for and take a meter and check what the voltage is going to the blower. Just a shot in the dark. The motor can burn out either way as in 110 going to a 220 motor and or 220 going to a 110 motor.

[Stretch]

Possibly the old motor was too small. If they replace it with the same size motor, the new one will burn out too. The nameplate should have the proper motor size. After they replace it, they should check the amps to make sure it is working OK. They should also replace the motor capacitor.

One other possibility is if it is a Goodman or Janotrol or GMC heat pump. The blowerr relays have a habit of failing in such a way as to run the strip heat and motor together, hence a burning smell. If that is tha case, replace the blower relay as well. Sounds like the service company uses parts replacers instead of techs. If it is not working right when they are done, they haven't diagnosed the problem properly. After 5 trips, it appears they cannot.

Stretch

[Oscar_Lives]

You need to check the yellow pages and get a better service tech to check the unit.