Domestic Air Conditioner
YES
NO
7.3.7 The EEPROM Abnormality (Indoor or outdoor unit)
Indoor Display
E4
:
˖
Indoor EEPROM error
F12
˖
Outdoor EEPROM error
Method of
the Data detected by the EEPROM are used to determine MCU
Malfunction
Detection
Malfunction
when the Data of EEPROM is error or the EEPROM is damaged
Decision
Conditions
Supposed
Ƶ
Faulty EEPROM data
Causes
Ƶ
Faulty EEPROM
Ƶ
Faulty PCB
Troubleshooting * Caution
Be sure to turn off power switch before connect or disconnect connector, or
parts damage may be occurred.
YES
NO
Pull out the exhaust sensor and measure its
resistance at standard temperatures
according to the resistance-temperature table
NO
The sensor is damaged. Replace the sensor
with a new one.
the results deviate
much?
YES
The sensor is damaged. Replace the sensor
with a new one.
The outdoor mainboard is damaged and
needs be replaced
Check whether LED1 on
the outdoor unit blinks 1
times
The outdoor mainboard
is damaged. Replace it
with a new one.
the indoor mainboard is
damaged, and needs
replacing with a new one
HSU12/18VHJ(DB)
Functions and control
63
Содержание HSU18VHJ(DB)
Страница 3: ...12 VHJ DB 101 101 102 106 ...
Страница 13: ...Domestic Air Conditioner PCB 1 CN31 CN11 CN1 CN32 CN26 CN27 CON2 CN30 CON12 CON8 CH1 10 HSU12 18VHJ DB ...
Страница 15: ... Domestic Air Conditioner PCB 1 CN26 CON1 CON2 CN11 CN32 CN1 CN48 CON8 CON6 CON7 12 HSU12 18VHJ DB ...
Страница 18: ...Domestic Air Conditioner PCB 2 CN1 CN2 CN3 CN4 CN5 CN6 CN7 CN11 CN10 15 HSU12 18VHJ DB ...
Страница 21: ... Domestic Air Conditioner PCB 2 CN1 CN2 CN3 CN4 CN5 CN6 CN7 CN11 CN10 18 HSU12 18VHJ DB ...
Страница 94: ...9 3 1 Removal of Outdoor Panel 9 3 For 12 18K Outdoor unit Removal Procedure HSU12 18VHJ DB 91 ...
Страница 95: ...Loosen the top panel screws 1 2 Lift the top panel HSU12 18VHJ DB Removal Procedure 92 ...
Страница 96: ...Domestic air conditioner Removal Procedure Loosen the csrews and pull the panel HSU12 18VHJ DB 93 ...
Страница 97: ...9 3 2 Removal of Electrical Box HSU12 18VHJ DB Removal Procedure 94 ...
Страница 98: ...9 3 3 Removal of Fan and Fan Motor HSU12 18VHJ DB Removal Procedure 95 ...
Страница 99: ...2 Loosen the fixing screws and remove the motor HSU12 18VHJ DB Removal Procedure 96 ...
Страница 100: ...9 3 4 Removal of fan motor Bracket and Partition HSU12 18VHJ DB Removal Procedure 97 ...
Страница 101: ...and remove the reactor Loosen the screw HSU12 18VHJ DB Removal Procedure 98 ...
Страница 103: ...4 Remove the compre ssor and pipe assay 5 Remove the conden ser HSU12 18VHJ DB Removal Procedure 100 ...
Страница 104: ... SSHQGL SSHQGL 3LSLQJ LDJUDPV 68 9 101 ...
Страница 109: ...10 3 Circuit Diagrams 10 3 1 INDOORUNIT FOR12K Appendix HSU12 18VHJ DB 106 ...