While you wait for answers, we may have found some information which could help you.
Click here for Creda Storage HeaterHow to adjust automatic timing of the creda automatic heater model 79151?
How to switch off my electric storage creda heater? ?
how can i repair this heater?
need diagram for Creda Comfortair AB heater problem?
Creda 79151c thermal fuse failures, what is the cause?
Heater not turning off?