chilli CHP-P-07 - Trouble Shooting for Common Faults

Inverter heat pump solution
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H. Trouble shooting for common faults
1. Repairing Guidance
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WARNING:
a. If repair or scrap is required, please contact authorized service center nearby.
b. Requirements for Service Personnel
c. Any person who is involved with working on or breaking into a refrigerant circuit
should hold a current valid certificate from an industry-accredited assessment authority, which
authorizes their competence to handle refrigerants safely in accordance with an industry recognized
assessment specification.
d. Do not attempt to work on the equipment by yourself. Improper operation may cause danger.
e. Strictly comply with the manufacturer's requirements when charging R32 gas and equipment
maintenance. This chapter focuses on special maintenance requirements for swimming pool heat
pump with R32 gas. Please refer to the technical service manual for detailed maintenance operation.
f. Vacuumize completely before welding. Welding can only be carried out by professional personnel
in service center.
2. Failure solution and code
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Failure
Reason
Solution
Heat pump doesn’t run
No power
Wait until the power recovers
Power switch is off
Switch on the power
Fuse burned
Check and change the fuse
The breaker is off
Check and turn on the breaker
Fan running but with
insufficient heating
evaporator blocked
Remove the obstacles
Air outlet blocked
Remove the obstacles
3 minutes start delay
Wait patiently
Display normal, but no heating
Set temp. too low
Set proper heating temp.
3 minutes start delay
Wait patiently
If above solutions don’t work, please contact your installer with detailed information and your model
number. Don’t try to repair it yourself.
Note: If the following conditions happen, please stop the machine immediately, and cut off the power
supply immediately, then contact your dealer:
1. Inaccurate switch action.
2. The fuse is frequently broken or leakage circuit breaker jumped.
Protection & Failure code
NO.
Display
Protection code description
1
E3
No water protection
2
E5
Power supply excesses operation range (not failure)
3
E6
Excessive temp difference between inlet and outlet water(Insufficient
water flow protection)
4
Eb
Ambient temperature too high or too low protection (not failure)