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Errors


Boiler type UFT-140W

Error code Er81

Cause:

Low Water Level Circuit

Solution:

This Error Code will go away when the condition is remedied.
If Error happens again:

- Ensure all valves are open to the boiler and there are no leaks.
- Check wiring connections to low water level sensor. Ensure all are secure.
- Check low water level sensor resistance. If resistance is zero, replace the sensor.
- If the problem persists, replace the main control.