7.Trouble shooting guide
Malfunction
Reason
Resolution
Unit not
running
1.Power Failure
2.Unit power cable loose
3.Unit control power fuse is fusing
1. Disconnect the power switch, check the
power supply, power supply for the three-
phase, check the correct phase sequence
2.To connect the loose power cord
3.Identify the cause and replace the same
fuse
Heating
Capacity is low
1.Water filter is clogging
2.Insufficient refrigerant
3.water system insulation is not
well
4.Dry filter clogging
5. Bad air heat exchanger cooling
1.clean the filters
2.leak detection and fill the refrigerant
3.Strengthen the water system insulation
4.Replace the filter drier
5.Clean the air heat exchanger
Compressor
not running
1. Power Failure
2Compressor contactor damage
3.Connection loose
4.The compressor thermal
protection
5. The water outlet temperature is
too high
6.Compressor capacitor failure
1. Identify the cause and resolve faults
2. Replace the contactor
3To identify and repair the loose points
4.start the unit after identify the reasons
and solved
5.To re-set the water temperature
6. Replace the compressor capacitor
Water pump
not running
1. Power Failure
2.Connection loose
3.Pump motor burned
1.Identify the cause and resolve faults
2.To identify and repair the loose points
3. Replace the water pump
Compressor
ruinning
noisily
1Liquid refrigerant entering the
compressor
2.Compressor internal parts is
damage
1.Check the expansion valve
2.Replace the compressor
Fan not
running
1.The Fan screws is loose
2. Fan motor burned
1.Tighten the screws
2.Replace the fan
Exhaust
Pressure is too
high
1.Refrigerant excessive
2.There is non-condensable gases
is the Fluoro system
1.Emit excess refrigerant
2. Discharge non-condensable gases
Compressor is
running,but the
unit is not
heating
1. All the refrigerant is leaks
2. Compressor failure
3.Four-way valve is leakage
1.leak detection and fill the refrigerant
2.Replace the compressor
3.Replace the four-way valve
Note: after-sales service and warranty must be appropriately qualified
professional and technical staff under the technical services provided
by the Division I manual operation, not to their own operations to avoid
unnecessary losses and damage.
AIR SOURCE HEAT PUMP WATER HEATER
15
15
