4. Troubleshooting
4-11
Error type
Error mode
Checking Method
Corrective actions
High Temperature
Heating Error
1E
[Or]
‘Normal’ +
‘Smart Auto’
LED
1. Check the hot water connections for the Inlet Valve.. - See the “Temperature Sensor Error”.
2. Check the operation of the Thermistor.
- See the “Heater Error”.
Leakage Error
LE
[Or]
‘Heavy’ LED
Check whether there is any trace of water leakage
in the shutter.
Normal: No water leakage trace
¯
- Faulty: Check the leakage location. Replace the faulty part.
- Normal: Replace the Main PBA assy.
Over-level water error
oE
[Or]
‘Heavy’ +
‘Smart Auto’
LED
1. Check the connections for the Over
fl
ow Sensor
connector.
- Reconnect the Over
fl
ow Sensor connector.
2. Check whether the Inlet Valve operates normally.
- See “Water supply Error”.
3. Check whether water is supplied (even small
amounts) in the intervals when the Inlet Valve is not
operating.
- Remove foreign material from the Inlet Valve.
- If you cannot remove the foreign material from the Inlet Valve, replace it.
4. Check whether there is any trace of water leakage
on the top of the Case Sensor.
- Clean the Hose-Sensor and the Case Sensor.
5. Check whether an “Over Level Water Error” is
detected when the assy wire-harness connector for
Over
fl
ow Sensor is not connected.
Normal: The “Over Level Water Error” does not
¯
occur.
- Faulty: Replace the Main PBA assy
- Normal: Replace the Assy case brake(
fl
ow-meter).
Содержание DMT400 series
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Страница 33: ...3 23 3 Disassembly and Reassembly Memo ...