4. Troubleshooting
4. Troubleshooting
4.1. Information code
Code Symbol
Meaning
Occurring condition
Expected condition
Temperature Sensor
error
When 0.2V or below, or 4.5V or above is maintained for over 3 seconds.
Thermistor terminal not connected.
Possible defect : Thermistor, Main PBA
Heater error
When the temperature change is 4˚C or less within the first 10 minutes
after the heating starts.
Heater terminal not connected.
Possible defect : Main Wire-Harness, Heater, Heater
Relay, Main PBA
High temperature
Heating error.
When the temperature of the Thermistor is 80˚C or above for more than 3
seconds.
Water supply temperature of 80˚C or above.
Possible defect : Thermistor, Main PBA.
Low-level water error
When Low Level is detected to cause Error even after the water supply
resumes after Low Level is detected for the 1st time.
Low Level Sensor terminal not connected.
Possible defect : Low Level Sensor, Main PBA .
Water supply error
1) When the pulse of 100 or less is detected even 1 minute after
the water supply.
2) When flow meter pulse is 5 or less 5 seconds after the water
supply starts.
3) When the water supply does not occur 5 minutes after the water
supply starts.
Alien particles within water supply valve.
Water supply valve terminal not connected.
Possible defect : Main PB, Water supply valve, Flow
Meter.
High temperature
Water supply error
When 80˚C or above is detected during water supply .
Water supply temperature of 80˚C or above.
Possible defect : Thermistor, Main PBA.
Drain error
When OFF status of Low Level S/W is not detected within 3 minutes
during the drain.
Alien particles clogging mater drain hose.
Drain valve terminal not connected.
Possible defect : Drain pump, Low Level Sensor,
Main PBA.
4-1
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