Name: LG LDTH7972S
Brand: LG

Question 1

What does error code AE mean on LG LDTH7972S?

Accepted Answer

LEAKAGE ERROR. Cause: Door gasket came loose or fell off; Float assembly is stuck; Controller (Main PCB) is damaged; Seal assembly not properly connected to sump; Unit not leveled; Wrong detergent used (excess suds).

Question 2

What does error code bE mean on LG LDTH7972S?

Accepted Answer

BUBBLE ERROR. Cause: Wrong/non-dishwasher detergent used; Dishwasher not leveled properly.

Question 3

What does error code F31 mean on LG LDTH7972S?

Accepted Answer

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

Question 4

What does error code F35 mean on LG LDTH7972S?

Accepted Answer

HEAT AIR TEMPERATURE SENSOR ERROR. Cause: Wiring connection faulty; Heat Dry Thermistor defective.

Question 5

What does error code FE mean on LG LDTH7972S?

Accepted Answer

EXCESS ERROR. Cause: Inlet Valve damaged (continues to pass water when closed); Main PCB (Controller) damaged; Hall Sensor faulty.

Question 6

What does error code HE mean on LG LDTH7972S?

Accepted Answer

HEATER ERROR. Cause: Wiring connection faulty; Inlet water temperature too high; Thermistor damaged; Heater defective (fuse or thermostat shorted); Main PCB (Controller) damaged; Relay circuit faulty.

Question 7

What does error code IE mean on LG LDTH7972S?

Accepted Answer

INLET ERROR. Cause: Water supply tap closed; Wiring connections faulty; Inlet Hose kinked; Water pressure too low (below 20 psi) or too high (above 120 psi); Inlet Valve filter clogged; Inlet Valve defective; Hall Sensor faulty; Air Guide impeller not spinning.

Question 8

What does error code LE mean on LG LDTH7972S?

Accepted Answer

MOTOR ERROR. Cause: Wiring connection faulty; Washing Motor impeller locked or damaged; Main PCB (Controller) damaged; Debris restraining washing motor.

Question 9

What does error code nE mean on LG LDTH7972S?

Accepted Answer

VARIO ERROR. Cause: Wiring connection faulty; Vario Micro Switch not properly assembled or defective; Vario Motor not rotating normally or stuck with debris.

Question 10

What does error code OE mean on LG LDTH7972S?

Accepted Answer

DRAIN ERROR. Cause: Filter assembly blocked; Drain Hose kinked or blocked; Inner hole of drain case blocked; Air gap clogged; Knock-out plug of garbage disposal not removed; Washing Motor locked or defective; Wiring connection faulty; Drain Pump impeller blocked by debris; Main PCB (Controller) damaged.

LDTH7972S

Error Codes

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Code	Meaning	Severity
AE	LEAKAGE ERROR	Moderate
bE	BUBBLE ERROR	Moderate
F31	HEAT AIR DRY FAN MOTOR ERROR	Moderate
F35	HEAT AIR TEMPERATURE SENSOR ERROR	Moderate
FE	EXCESS ERROR	Moderate
HE	HEATER ERROR	Moderate
IE	INLET ERROR	Moderate
LE	MOTOR ERROR	Moderate