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Errors


Boiler type Mascot MFTCF Floor-Standing

Error code Er:33

Cause:

CH Temperature Sensor Open or Short. 

Solution:

This Error Code will go away when CH temperature decreases.
If Error happens again:
1. Check CH temperature sensor. Ensure connections are secure.
2. Check CH sensor resistance. If resistance is zero, replace the sensor.
3. If the problem persists, replace the main control.