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Compressor not working

Unit outside not running, tech replaced the start capacitator. when he turned on the power, a large bang occured.  He then said the compressor was gone.   Did he do something to cause this??  It is a Trane, 10 years old.

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Sounds to me like the compressor may be grounded, but i would check to see if there are any burn marks where he did his work. The compressor has an internal overload protection that opens and closes but may have failed. It is hard to tell what happened from here and who is to blame. A compressor can fail then end up blowing up afterwards though

Posted on Jul 18, 2009

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Note: you will probably be charged 'retail' instead of 'wholesale' - for the motor and capaciter - but the price difference shouldn't be that much - I would estimate no more than $125 for the motor and capaciter. Be sure when you put the new motor/capaciter back on the unit - that all power is off - and that you put motor and capaciter back on exactly the way the old ones were. Be sure you note the "position" of the blade on the shaft of the old motor and position the blade on the new motor in the approximate same place.

If you prefer to have a Service Tech do this - you're looking at a Repair bill of around $375 and up - and bear in mind - whether you do it yourself or have someone do it for you - "there may be another problem" going on with your unit, i.e. low on charge or something, so as so often happens in life - your 'best and cheapest' way out may be to call a Service Tech from the git-go.

hope this is helpful

good luck!

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