You might want to ask your AC company to escalate the problem to one of the Carrier factory support techs since they appear to be having trouble diagnosing the issue. This may only be possible if they are a Carrier Factory Authorized Dealer. If they aren't, you may want to consider going with a different AC company. When dealing with techs, I believe you should refrain from telling them what you think the problem might be and instead focus on describing the symptoms only, as accurately as possible. For example, is the system running normally and then the compressor cuts out or does the compressor fail to start when the thermostat calls for AC?
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Originally Posted by EdFNJ
Any Jr. A/C diagnostic sleuths out there?
Here's the problem. Happens intermittently (last time was this morning at 2AM).
A/C stops cooling yet the compressor fan outside continues to run as if all is OK.
Here's what's been done so far:
New Capacitor
New Contactor
New Fan motor
Condensate drain is clear and drain switch tests OK.
Refrigerant is fine
Problem is, every time the repair guy comes out it is working again. It stops cooling usually for a couple hours at random times. Sometimes it can go for 2 weeks without issue then it happens again.
It's an 8+yr old Carrier unit that was part of the original construction (I'm 2nd owner). When it is working it cools perfectly so it isn't a refrigerant issue.
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