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I have an upstairs and downstairs unit, the downstairs unit does not blow any air through the vents, and only comes on for a short period of time, in order for me to get it to come on i have to turn the breaker off and on, now the breaker is never tripped, but that is the only way i can get the unit to seem like it is on

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Look at the coils to see if they are frozen. This could be several issues so you will have to do some looking. Is there a little air or none at all? Does the outside unit blow warm air or not? When you turn it off, do you have to wait a while to turn it back on? This all could relate to a low charge, a bad motor, a bad capacitor, ect..

Posted on Jul 18, 2009

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