Gree GPC07AH-K3NNC3D Service Manual page 48

Malfunction
NO.
Error
Name
Code
Water
5 over-flow H8
protection
Insufficient
6 fluorine F0
protection
Overload
7 protection for H3
compressor
Overload
8 E8
malfunction
46
Display Method of Indoor Unit
Indicator lamp
(During blinking, ON for 0.5S and
OFF for 0.5 S)
Operation COOL HEAT
Inidicato Indicator Indicator
A/C Status
During cooling or drying
operation,condensate water will flow into
chassis. If it's detected that water inside
The unit stops
water chassis is full for 3s successively,
operation
it comes into water over-flow protection.
Buzzer will give out 8 sounds and dual-8
nixie tube displays error code "H8".
1. Heat exchangers are too dirty or the air
inlet/outlet is blocked.
Indoor fan runs
2. Compressor doesn't work normally.
according to set fan
Strange noise or leakage occurs.
and other loads will
Temperature of the shell is too high.
stop.
3. System is blocked inside(dirt block, ice
block, oil block, Y-valve not fully open).
4. The refrigerant is leaking.
1. Heat exchangers are too dirty or the air
inlet/outlet is blocked.
2. Fan motor is not working Abnormal fan
speed; fan speed is too low or the fan doesn't
run.
Indoor fan runs
3. Compressor doesn't work normally.
according to set fan
Strange noise or leakage occurs.
and other loads will Temperature of the shell is too high.
stop. 4. System is blocked inside(dirt block, ice
block, oil block, Y-valve not fully open).
5. Draw-water motor can't operate normally.
6. Water outlet hasn't been blocked well by
rubber cork .
7. The refrigerant is leaking and cause
overheating protection to compressor.
1. The environment is formidable.
2. Heat exchangers are too dirty or the air
inlet/outlet is blocked.
During cooling or
3. Fan motor is not working Abnormal fan
drying operation,
speed; fan speed is too low or the fan doesn't
indoor fan operates,
run.
while compressor,
4. Compressor doesn't work normally.
outdoor fan and
Strange noise or leakage occurs.
water-striking
Temperature of the shell is too high.
motor stop. "E8" is
5. System is blocked inside(dirt block, ice
displayed.
block, oil block, Y-valve not fully open).
6.Temperature sensor of main board can't
detect correctly.
Service Manual
Possible Causes
Maintenance