See our 32 reviews on
See our 32 reviews on
ERROR CODE: F81
ERROR TYPE: Waiting for temperature sensor deviation test
PROBABLE CAUSE: Temperature sensors may be defective.
SOLUTION:
1- Turn off the power and wait 5 minutes. Turn on the power again and ensure that the error does not appear on the display.
2- Check the connection and conductivity of the supply/return or DHW sensor cables. If there is a problem, replace the cables.
3- Check the resistance of the sensors by measuring them. If there is a problem, replace the sensor.
4- If the problem is not resolved, replace the mainboard.
Updated on 9 January 2024, Tuesday
