Volvo fh4 night heater

I cannot get the above to come on via the timer…if i set it when i finish work to get the cab warm for…lets say 6am…it wont come on… it it will if i press it manually while in the csb…any suggestions?? Probably me doing something wrong!!! Any help appreciated

The driver’s handbook is available from Google play, Volvo trucks handbook.

I believe you have to set the temperature using the normal temperature control on the bottom left of the dash, then set the timer for what time you’re starting, and the night heater will get the cab to the set temperature by that time.

Common fault, requires dealer software update or if fitted with I-Cool this didn’t work back in 2015, meaning the fitment of a stand alone timer.

Please let us know if Volvo have managed to rectify this and I m wrong.

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