On 7/11/2011 10:50 AM, Herbert Graf wrote:
> On Tue, 2011-07-12 at 02:36 +1200, RussellMc wrote:
>   =20
>> What is MEANT to stop it. eg
>>
>> - Is there a thermostat somewhere that is responding incorrectly to
>> the high temperatures.
>>
>> - Is there eg a fire shutdown sensor that decides that really hot days
>> are a house fire?
>>     =20
> The compressor terminals have power, I measured right at the compressor
> housing. Unless the compressor has some device in it that I don't know
> of? FWIW I know that compressors often have overload switches that take
> a few minutes to reset (I've waited hours). Some also have integrated
> low pressure cutoff switches, but considering the low side is correct
> when the compressor is running I don't believe that's the issue.
>   =20
If the internal cutoff switch is defective, then that fits the symptoms,=20
except, I would expect it to cycle much more frequently.
>   =20
>> Put a fan heater (for circulation) in the relevant vicinity and heat
>> things to toasty too much. What happens?
>>     =20
> I don't know what you mean by that? The condenser is outside on mounted
> on the side of the house.
>
>   =20
I think what is meant, artificially create the hot conditions by heating=20
the ambient. I think hard to do, need lots of heat. Very cautiously, I=20
give thought (didn't say suggest) obstructing the air flow to the=20
condensor by covering with a blanket, or even disconnecting the fan.=20
Wouldn't do it without someone's opinion with much more expertise than I=20
have. :)

Has anyone checked the refrigerant level (pressures)? Pressure switches=20
could be set for both high and/or low pressures. Is the condenser clean=20
- fins clear, fan blades clean, no bent fins, in general in good repair=20
from an appearance viewpoint.  Fan spins freely, no bad bearings?
> Thanks, TTYL
>
>   =20
--=20
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