Hisense GBF18H-S User Manual page 114

7 . T R O U B L E S H
7 . T R O U B L E S H
1 The refrigerant is excessive
2 The indoor ambient temperature is too high
3 The air outlet and air inlet of the indoor unit is short-circuit
4 The indoor filter is dirty
5 The speed of the indoor fan motor is too low
6 The indoor fan is broken or the outdoor fan is blocked
7 The air inlet and outlet has been blocked
8 The expansion valve or the capillary is failure
The following is the fault code table of driver board.
Analysis of the Driving Board Fault
Driver board fault codes trouble shooting
I． Driver fault code display by indicate lamps of driver board flashing. The times that the lamp flashes equal to
fault code. Flashing Intervals for a period of time again .Indicator light off when no fault.
For example，fault code 3： Indicator light flash 3 times and Flashing Intervals for a period of time
again, reports No. 3 fault.
Fault
Fault Description
code
Q axis current detection,
1
step out of failure
ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V6.0
O O T I N G
O O T I N G
（ Except Free-match 20K&16K DUAL TYPES
Sheet 5 Driver Error Code
------Except 20K&16 Dual types
Possible Reason of Abnormality
1, compressor wire connect not well;
2, Bad driver board components;
3, Compressor start load is too large;
4,Compressor demagnetization;
Discharge the refrigerant, and recharge the refrigerant refer to the
rating label
Please use within allowable temperature range
Adjust the installation of the indoor unit refer to the user manual
Clean the indoor filter
Check the indoor fan motor and fan capacitor
Check the indoor fan
Remove the blocked thing
Replace the expansion valve or the capillary
How to Deal With
1, Check compressor wire;
2, Change driver board ;
3,Turn on the machine after pressure balance
again;
） ,details see sheet 5.
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