Gas and Oil Home Heating Furnaces - Heat Pump Woes

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04-23-01, 09:43 PM
I recently purchased a home with a heat pump(only 3 years old) and have had problems with it ever since. I had a repairman out three times to add freon and look for a leak that they finally found. Due to the cost my insurnce company sent out a new repair service, for a second oppinon, they said that they could not properly set the freon levels because the coils under my house were dirty and could not find any leak. As it stands right now the external unit will not turn on at all to cool or heat the house.
The questions I have are:
1. How often should coils under a house be cleaned? The repairman recomended a service come in and perform an "acid" cleaning.
2. How often should the external unit should turn on thoughout the day if there is a 20 degree temperature differnce inside and outside the house?

Any help would be greatly appreciated.

BWS


CoolBreeze
04-23-01, 11:49 PM
Hi,

If the system ductwork is properly sealed and all unit panels intact/closed and filters cleaned/changed every 30 days,Evaporator Coils should be ok with a Spring/Fall (Twice Yearly) check and clean if needed. I would not advise using an acid based coil cleaner.I would suggest having coils cleaned with a non-acid coil cleaner with foaming action.

There are too many variables to estimate number of A/C cycles such as temps,insulation,proper installation,t-stat settings,comfort level and so forth.These will determine how long unit cycles and how often and how long home can maintain desired temp before unit has to cycle back on.

As for as Condensing (outside) unit not coming on at all suggests a power failure/interuption,either low voltage or line voltage.Hope this helps,write back if further help/info needed.Take Care and Best Wishes.

CoolBreeze