Panasonic WH-SHF09F3E5, Service Manual

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16.3 Breakdown Self Diagnosis Function
16.3.1 Self Diagnosis Function (Three Digits Alphanumeric Code)

When abnormality occur during operation, the system will stop operation, and OFF/ON control panel LED will
blink and error code will display on the control panel timer display LCD.

Even error code is reset by turning OFF power supply or by pressing ERROR RESET button, if the system
abnormality is still un-repaired, system will again stop operation, and OFF/ON control panel LED will again blink.

The error code will store in IC memory.

To check the error code
1 When an abnormality occurs, system will stop operation and OFF/ON control panel LED will blink.
2 Error code of the abnormality will display on the control panel timer display LCD.
3 To determine the abnormality description, the error code table needs to be referred.

To display past/last error code
1 Turn ON power supply.
2 Press and hold the CHECK button for more than 5 seconds to enter status mode.
3 Press the SEARCH DOWN/UP button to retrieve past/last error code.
4 Press the CANCEL button or wait 30 seconds to exit status mode.

To permanently delete error code from IC memory
1 Turn ON power supply.
2 Press and hold the ERROR RESET button for more than 8 seconds till a beep sound is heard.
OPERATION
ACTUAL
HEATER
BOOSTER
QUIET
SETTING
STATUS
SERVICE
HEAT
TANK
HEATER
FORCE
°C
°C
ON
OFF
MON TUE WED THU FRI SAT SUN
hr
hr
kwh
SEARCH
Downward/Upward
Button
CANCEL
Button
ERROR
RESET
Button
CHECK Button