1037
Outside temp. sensor faulty - heating backup operation active
Worcester Bosch Greenstar 8000 F Regular
Remedy
Tip: Check the weather compensation is applicable and the menu has not been accidentally switched on in the menu.
Check the positioning of the outside weather sensor.
Check the weather sensor connections on the control board.
Check the resistance of the sensor and the continuity down the cable and replace if required.
This code also applies to: