Question about American Standard Heating & Cooling
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Posted on Jan 02, 2017
Hi I am sure this model number is correct and it is a 3 Ton unit.Normally when the breaker trips as soon as you reset it, the compressor is compromised. Happened to me yesterday on a 5 ton heat-pump. When this happens, what you can do if you are a handy type of man, is to prove this. I don't know if the is is a split system or a all in one package unit, doesn't matter. Get to the compressor compartment. Of course the power will be off.If you can see the run capacitor, take a screw driver and short across the terminals to discharge it, as it could have a small amount of juice in it, I doubt it. Anyway, remove the plastic cover to expose the terminals. They can be hard to remove sometimes, just use a screw driver to push the clips in. Wire colors should be black for common, yellow for start, and blue for run. Write down the order they were in. To be safe, tape the metal connectors so they wont touch metal when you turn the power back on. After you have done this, turn everything back on. If the breaker holds and everything else is on, fan and so on, this proves the compressor is probably shorted to ground. If this a/c is rather new, I would replace the compressor. If it is old, I would think about getting prices on a new unit. Just food for thought. Please let me know on the out come of this test, please. When a compressor shorts out, or locks up, it draws what is called locked rotor amps/LRA which could be from 49 on up, and your breaker can be 25, 30, 35 to 40 amps so it will trip. Keep me posted and do this test, it is very easy to do.
Posted on Apr 18, 2010
SOURCE: I have error codes flashing
Error codes from American Standard Pub 18-HD32D2-8, which is a one-sheet document that came with my American Standard air-conditioner:
29 = not listed
129 = not listed
80 = HPCO Fault - problem is in outdoor unit - Desscription: High Pressure Monitor Fault (hard lock out, cycle power to reset)
91 = Communication Inactive Fault - problem is in air handler - Descriptions - COMM Bit Master Clock Error, COMM Heat/Cool Demand Error, Serial Motor Communication Inactive Error
91 = Communication Fault - problem is in furnace - Descriptions: Blower motor no COMM response, Inducer motor no COMM response, Loss of heat/cool demand, Loss of clock signal
91 = Communication Fault - problem is in outdoor unit - Descriptions: Loss of Heat/Cool Demand Message (COMM), Loss of Bit Master (Clock Signal)
91 = Communication Fault - Description: Comm line is dead and no bits have been received.
By the way, I do not recommend American Standard. I've had mine 14 months and it just blew up - the entire control panel blew. My advice to you - think about a different brand.
Posted on Sep 21, 2010
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