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ewingil@yahoo.com wrote:
> I've a 4 year old Lennox central air conditioner. It has run fine
> until this summer.
> Now after it has been running for about 15 minutes the circuit breaker
> trips and the outside condensor fan stops. When running it does blow
> cool air.
>
> I've heard that it could be the compressor or something else with
> the A/C unit or it could be a bad breaker. Since the unit is only 4
> years old I'm thinking that it is unlikely that the compressor has
> gone bad. If it were a bad breaker wouldn't it trip as soon as the
> unit turned on?
> Any thoughts?
Was this a new or replacement A/C system?
If it was a replacement, I'd tend to go with the idea that they may
have used the existing breaker and it may be rated marginally for that unit.
You need to check the recommended protection for that specific unit or it
may just be tired and need replacement. That one you can do yourself IF
you are reasonable competent and careful. But you will need to know what
the new system calls for and if it is larger, you might also need to replace
some wiring.
On the other hand if it was not a replacement, I'd tend to suspect
the compressor.
The electrician isn't going to be qualified to check the A/C, but the
HVAC contractor should be able to determine that the A/C is OK and that the
correctly rated breaker is in use.
--
Joseph Meehan
Dia duit
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