High exhaust temperature
protection
1. Replace exhaust temperature sensor.
2. Replace PCB control board.
3. Contact Service to Check for a refrigerant circuit leak. If
there is a refrigerant leak, repair the leak, vacuum unit, charge
the refrigerant according to the type and weight of the
refrigerant on the nameplate.
(Available for remote controller ONLY)
1. Check if the communication connection wire between
display and PCB is well .
2. Change or mend the wire if necessary .
3. Check the PCB or display. If damaged, Change the
corresponding part .
Cooling coil temp. sensor failure
Check the sensor connection, change the sensor if necessary.
Suction temp. sensor failure
Check the sensor connection, change the sensor if necessary.
5. MAINTENANCE AND WINTERIZING
5.1. Maintenance
WARNING: Before undertaking maintenance work on the unit, ensure that you have
disconnected the electrical power supply.
1. Cleaning
a. The heat pump’s casing must be cleaned with a damp cloth. The use of detergents or other
household products could damage the surface of the casing and affect its properties.
b. The evaporator at the rear of the heat pump must be carefully cleaned with a vacuum cleaner
and soft brush attachment.
2. Annual maintenance
The following operations must be undertaken by a qualified person at least once a year.
a. Carry out safety checks.
b. Check the integrity of the electrical wiring.
c. Check the grounding/bonding connections.
d. Monitor the condition of the pressure gauge and the presence of refrigerant.
5.2. Winterizing
In winter season when you don’t swim:
a. Cut off power supply to prevent any machine damage.
b. Drain water out of the machine.
“CUT OFF” power supply to the heater
before cleaning, examination and repairs
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