98 Troubleshooting
Check method
Fault
Possible Causes
Check method
Defective sensor
Defective temperature
sensor connector
Check if the temperature sensor is open and if the connector is connected
properly.
Temperature sensor
Check the resistance of the temperature sensor. (Defective if it is 40kΩ or
higher)
●
Replace the temperature sensor if the resistance value is abnormal.
●
Check the temperature displayed on the front panel.
Possible Issues
Defective PCB
If the issues continue despite checking the items above, replace the PCB.
<DHW Flow sensor input temperature sensor / connector>
Check if the hot water temperature sensor is open (Error type: MΩ Open)
Содержание NCB-700-2S+/42K
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