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On ac side blower not starting, all the time and system freezes

\015 My system is a Goodman cple30-1 / ar30-1 split system. The problem i have is when system starts up on ac if the blower starts then system will run fine for a few days or weeks. No way to tell when it will not cycle the the blower, system will freeze up inside coil. then have to shutdown system till everything unthaws, after that blower may start back up or not. seems as though system run fine in the spring to early summer, (probly do to not much of a load on system). The thing that gets me is system on heat side everything runs fine blower starts everytime.\015\012\015\012I have had 2 diff. company's look at it and could not find anything wrong (of course when they come system starts rite up). 1 suggested that i replace compressor. 2 suggested I add a start capacitor\015

Answers :

Most motors have a thermal cut out that is internal. If the motor overheats, it will shut down. If the unit is freezing up, that would indicate that there isn't enough airflow over the coils or the unit is low on refrigerant. I had a unit that did this same exact thing and after replacing the blower motor and a sequencer, in the end it was the t-stat. You are describing the same exact symptoms and every time I would go out, the unit would work fine. I would suggest replacing the t-stat and then watch the unit. But make sure that the coils are clean and you are not restricting airflow over the coils. Hopefully one of the techs actually looked at the coils to determine if they needed to be pulled and cleaned. Hopefully this answers your question.

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On ac side blower not starting, all the time and system freezes

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