Chub wrote:
and how is she going to know if the answers are right?

She doesn't have to. When people lie it usually shows.

Richard Perry



"RP" wrote in message
news

Anne Brennan wrote:


When I lived in Florida I had 2 different heat pumps----a Trane and
later a Carrier. I was very comforable in both houses during the
heating season as well as the summer. When my husband passed away I
moved to South Carolina to be a bit closer to my family. The house I
bought here has a heat pump but the house is quite uncomforable during
the heating season. When the unit comes on it blows cold air (it feels
like the air conditioner is on) As it runs the air gradually improves
but it never blows warm air. it goes from cold to perhaps cool then
eventually shuts off.

I have had several repair men here and they say that it is working ok.
Is this how some heat pumps work? I have the thermostat set at 76
degrees and still the house is uncomfortable. My electric bill is quite
high but I dont want to get sick. so I have to pay it. Should I have
this unit removed (its 3 years old) and replace it with another brand or
will I be wasting more money? Any suggestions please. Anne

Apparently you've had several incompetent repairmen. Some possibilities
are, in no specific order: Excessive indoor airflow, refrigerant
restriction, insufficient airflow over the condenser (outdoor) coil for
any number of reasons, undercharged, overcharged, worn or damaged
compressor, reversing valve bypassing, air in refrigerant system, wrong
refrigerant in system, compressor stalling, undersized compressor,
evaporator blowby, return air leakage, expansion device overfeeding.

Ask the next guy to explain the following, and their relevance to the
problem, to you: subcooling, superheat, temperature difference across the
reversing valve, indoor cfm per ton, high side and low side pressures.
All of these measured after 10 minutes of runtime, except cfm because it
won't change. If he can't explain to you what all of these are, then send
him away. If he can't explain why each of these are important pieces of
information in regards to resolving the problem, then send him away. If
he can explain all of these measurements and their relevance, then he
might be the one to find the real problem for you.

Richard Perry