ENERGIE
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Heat pump capacity is low,
compressor
do not stop
1
2
3
4
lack of refrigerant;
bad insulation on water
pipe;
low heat exchange rate
on air side exchanger;
lack of water flow
1
2
3
4
check for the gas leakage and
recharge the refrigerant;
make good insulation on water
pipe;
clean the air side heat
exchanger;
clean the water filter
High compressor exhaust
1
2
too much refrigerant
low heat exchange rate
on air side exchanger
1
2
discharge the redundant gas
clean the air side heat exchanger
Low pressure problem
of the system
1) Lack of refrigerant
gas
2) Outside temperature
too low.
3) Obstruction of the
refrigerant circuit.
1
2
3
check the gas leakage and
recharge freon;
replace filter or capillary;
clean the water filter and
discharge the air in water loop.
Compressor do
not run
1 power supply failure
1
2
3
4
5
6
check off the power supply;
replace compressor contactor;
tighten the power cable;
check the compressor exhaust
temp.;
reset the return water temp.;
clean the water filter and
discharge the air in
water loop.
2 compressor contactor
broken
3 power cable loose
4
5
protection on
compressor
wrong setting on return
water temp.
6 lack of water flow
High noise of compressor
1
2
liquid refrigerant goes
into compressor
Compressor failure
1
2
bad evaporation, check the
cause for bad evaporation and
get rid of this;
use new compressor;
Fan do not run
1
2
failure on fan relay fan
motor broken
1
2
replace the fan relay;
replace fan motor.
The compressor
1
2
3
no gas in the heat
pump;
heat exchanger broken;
compressor failure.
1
2
3
check system leakage and
recharge refrigerant; find out the
cause and replace the heat
exchanger;
replace compressor.
runs but heat
pump has not
heating or
cooling capacity
Low outlet water temperature
1
2
low water flow rate;
low setting for the
desired water temp.;
1
2
clean the water filter and
discharge the air in water loop.
reset the desired water
temperature.
Low water flow protection
1
2
lack of water in the
system;
failure on flow switch
1
2
clean the water filter and
discharge the air in water loop.
replace the flow switch.