(1) Fault phenomenon: the wall hanging furnace is turned off, the main control device alarms, and the display displays the heating or hot water sensor fault code.
< br >
(2) Fault cause: ① temperature sensor short circuit; ② Open the temperature sensor.
< br >
(3) Solution:
< br >
① If it is due to the insulation layer of the connecting line in the line is damaged, replace the wire; If the temperature sensor is damaged, replace it. If the controller is damaged, replace it.
< br >
② If the connection in the line is broken or poorly inserted, replace the wire and re-plug it; If the temperature sensor is damaged, replace the temperature sensor. If the controller is faulty, replace it.