Gree GPC12AN-K5NNA1A

38
Maintenance
Service Manual
3 Maintenance Cautions
If it is necessary to replace components, all the components used shall be made by manufacturer. Otherwise, the supplier shall not
bear the responsibility.
1.Maintenance of Electrical Parts
(1)Replace the power cord and connecting wire with that of the same specication.
(2)When inspecting the circuit with power on, check if there is electric leakage for the metal component such as evaporator or condenser.
During inspection, do not touch the circuit so as to prevent electric shock.
(3)When inspecting the capacitor, ensure that the maintenance area is well ventilated. After conforming there is no refrigeration leakage,
discharge electricity of capacitor.
(4)Before replacing the component, cut of the power supply of the air conditioner.
(5)Cut off the power before disconnecting and connecting the wire. Disconnect the live wire rst and then ground wire.
(6)During maintenance, do not remove the protective component. Use the component of same supplier and specication.
(7)When servicing the hermetic parts, cut of the power of the air conditioner before opening the sealing cover. If it is necessary to use
power
supply, perform leak test to prevent potential danger.
(8)Do not replace the case which may affect the protective grade.
(9)Ensure that the sealing material is not degraded and that it can prevent entry of ammable gas. The parts used for replacement must
reach the requirement of the suppler.
2.Maintenance of Refrigeration System
(1) Do not lengthen or cut the connecting pipe.
(2) If the system component (such as evaporator, condenser, compressor, pipe) is needed to be serviced, discharge the refrigerant of the
system completely before maintenance.
(3) The parts used for replacement must be made by manufacturer.
(4) It is necessary to perform leak test before and after maintenance and ensure there is no leakage.
(5).
(6).
Replace electric box
Replace main board
Leakage test for
the complete unit
Concentration
detector
No
Remove panel
Leakage
electric box
Remove front
case
Replace
The qualified parts
provided by
manufacturer
Release the
refrigerant
refrigerant
Recharge
Pressure test
End
Yes
Leakage test
Concentration
detector
No
Remove panel
Leakage
Leakage test for the
complete unit
Remove front
case
Remove the
shielding box of
electric box
The qualified parts
provided by
manufacturer
Release the
refrigerant
referigerant
Leakage test
Recharge
Pressure test
Yes
Replace main
board