Flow Chart Of Troubleshooting; Malfunction Display: Current Protection - Gree SUPER FREE MATCH Series Service Manual

Indoor unit E gas tube
temperature sensor error
Indoor unit E liquid tube
temperature sensor error

3 FLOW CHART OF TROUBLESHOOTING

Service personnel shall collect the malfunction information as much as possible and research them
thoroughly, list these electrical parts which may cause malfunction, and shall be able to determine the specific
reason and solve the faulted parts. Observe the status of the complete device and do not observe the partial.
It is advised to start from the simple operation during analyzing, judging and confirming malfunction reason,
then conduct the complicated operations such removal of device, part replacement and refrigerant filling.
Find the malfunction reason carefully as unit may occur several malfunction at the same time and one
malfunction may develop into several malfunction, so entire system analysis shall be established to make the
judged result exact and credible.

3.1 Malfunction display: Current protection

wiring of the compressor: is it
Current protection
Check the
properly connected?
Yes
Is the current
value higher than the preset
value of protector?
Yes
Is the
high pressure normal?
Yes
Is the
voltage normal?
Yes
Replace the mainboard
b7
Flash 9 time
b5
Flash 10 times
No
Adjust the compressor
wiring
No
Replace the overcurrent
protector
No
Refer to high voltage
protection
No
Contact the power supply
company
Super Free Match
Service Manual
b7 indoor unit address
b5 indoor unit address
MAINTENANCE
119
N