Error Code HE

Heater Error - water not heated or tub overheated above 194 degrees F

What This Means

Wiring connection issue at RL2 pin4 to RL3 pin4; Inlet water temperature very high (over 185 degrees F); Thermistor damaged; Heater resistance out of range (should be 11.54 ohms +/- 10%); Controller damaged; Relay circuit fault

How to Fix

1. 1

   Check connector at RL2 pin4 to RL3 pin4; replace heater assembly if disconnected

2. 2

   If inlet water temperature is over 185 degrees F: adjust water heater to max 120 degrees F

3. 3

   If temperature is displayed in test mode: adjust inlet temperature to 120 degrees F

4. 4

   Check thermistor resistance (8-44 kohms); replace thermistor if out of range

5. 5

   Check heater resistance (11.54 ohms +/- 10%); replace pump casing assembly if out of range

6. 6

   Check voltage at RL2 pin4 to RL3 pin4 (should be 120V AC +/- 15%)

7. 7

   Replace main PCB assembly if voltage is in range but error persists

8. 8

   Replace relay circuit if relay is faulty

This Error Applies To

LG LDP6797ST Series Dishwashers