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Fault Condition
Possible Causes
The unit doesn't
work
The
pump
is
working but too
noisy and the
water
is
not
open
cycled
system
Low heating
capacity
The compressor
doesn't work
The compressor
works but too
noisy
The fan doesn't
work
Power fault
Bad connection to the power
Fuse blow
Lack water In the system
There
is
air
in
circulation
Any valve in the system is not
Filter stoppage
Inadequate refrigerant
bad insulation of the water
Drying filter stoppage
Air side
heat exchanger is
unefficient
Inadequate water-flow
Power failure
Compressor contactor destroyed
Poor connection
Overheating protection
water outlet temperature is too
high
Inadequate water-flow
Liquid refrigerant goes into the
compressor
interior components destroyed
Inadequate refrigeration oil
Capacitor damaged
The fans are not fixed well
The electromotor burned out
Turn off the switch, check the Power
source
Find the causes and renovate them
Replace the fuse
Check the water make-up device and
fill in with water
the
water
Discharge the air in water system
Open all valves
Clean filters
Leak hunting and fill in standard
quantity of refrigerant
Improve the heat insulation
Replace the drying filter
Clean the heat exchanger
Clean the water filter
Check it and solve the problems
Replace contactor
Check and renovate it
Check and solve the problems
Reset a proper temperature
Clean the water filter and discharge the
air in the water system
Check the expansion valve
Replace the compressor
Add in adequate refrigeration oil
Replace it
Fix it well again
Replace the electromotor
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Treatment
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