How do I fix error code F31 on a LG dishwashers?

1. undefined: Reconnect wire of Fan Module and Main PCB 2. undefined: If Fan Module still does not operate with proper wire connection, replace Heat Dry Module (SVC Loc No: M280) 3. undefined: Check Main PCB voltage to Fan Module — should be DC 12V; if not, replace Main PCB

LG Dishwashers

Error Code F31

Q: What does error code F31 mean on a LG dishwashers?

HEAT AIR DRY FAN MOTOR ERROR Wiring connection faulty (Fan Motor and Controller); Heat air dry fan impeller locked; Main PCB (Controller) damaged

HEAT AIR DRY FAN MOTOR ERROR

Moderate

Address soon - your appliance may not work properly

Also displayed as: F31

What This Means

Wiring connection faulty (Fan Motor and Controller); Heat air dry fan impeller locked; Main PCB (Controller) damaged

How to Fix

1
Reconnect wire of Fan Module and Main PCB
2
If Fan Module still does not operate with proper wire connection, replace Heat Dry Module (SVC Loc No: M280)
3
Check Main PCB voltage to Fan Module — should be DC 12V; if not, replace Main PCB

This Error Applies To

LG LDPH7972S Series Dishwashers

Service manual exact match: LDPH7972BService manual exact match: LDPH7972WService manual exact match: LDTH7972SService manual exact match: LDTH7972BService manual exact match: LDTH7972WService manual exact match: SDWB2413SService manual exact match: SDWB2413BService manual exact match: SDWB2413W+2 more

Related Error Codes

EXCESS ERROR

DRAIN ERROR

BUBBLE ERROR

THERMAL ERROR

VARIO ERROR

F35

HEAT AIR TEMPERATURE SENSOR ERROR

LEAKAGE ERROR

INLET ERROR

Need more help with your LG dishwashers?