|
Posted by Dimitrios Paskoudniakis on June 6, 2008, 6:17 pm
>
>>
>>> My house in Maryland has two-zone heating/cooling.
>>>
>>> Upstairs is heat pump for both heating and cooling.
>>>
>>> Basement and first floor are heated by oil furnace, and cooled with air
>>> conditioner.
>>>
>>> The basement/first floor A/C compressor is running, but the blower motor
>>> is not running, and I noticed ice buildup and liquid condensate on the
>>> coil just outside the air handler in the basement.
>>>
>>> Last winter, the oil company that maintains my furnace replaced the
>>> controller which they said is used for both heating and cooling, so I
>>> thought I'd call them first in the morning, in case it's the controller
>>> and it's covered under warranty.
>>>
>>> I'd rather call a HVAC company that doesn't specialize in oil furnaces
>>> if the problem is probably not the controller.
>>>
>>> I posted in alt.home.repair and have been suggested it could be I'm low
>>> on refrigerant/leak (based on the ice on the coil), or since the blower
>>> is not working, it could be the controller, a bearing or the motor.
>>>
>>> What do the wise folks of alt.hvac think?
>>
>>
>> I think the folks over at alt.home.repair don't know shit about your
>> equipment or problem!
>>
>> First, you *can not* check the refrigerant level on a unit with a faulty
>> "not running" blower motor!
>> Nor could you say "it's probably low on refrigerant" due to an icy coil.
>>
>> The evaporator is freezing up because the blower *isn't* running, Period!
>>
>> Could the controller be the source of the problem, could be.
>>
>> But, I ask you this... *why* would you want to call an HVAC company that
>> *doesn't* specialize in oil furnaces???
>> Why not have one company that *is* familiar with your equipment, service
>> it???
>>
> Good points. Thank you. They are coming sometime today. I can follow up
> to confirm the issue.
>
When they replaced the controller unit last winter, they miswired the
cooling circuit. Warranty covered the visit, and the tech corrected the
wiring in two minutes.
|