Conan the Librarian:
I’m having an issue with the heater on my 64 plate scanny…it all started the other night following a visit from the diesel fairies 
Now after a couple of minutes, an alarm sounds and the display on the remote shows “heater error” . Doesn’t seem to matter at what temperature it’s set either.
Any ideas? 
When the alarm sounds turn it off for a few minutes then fire it up again until error comes up then repeat a few times, mine does this when it gets to a quarter full or less.
Don’t suppose you are one of these scania drivers who has about 3Ton of lights and gizmo’s fitted are you, if so might be drawing all the power away from your night heater!! Haha

Cue abusive responses from scania drivers!!!
Please don’t take this comment to heart guys, don’t mean any offence!!! Just bit of light hearted humour following what I saw at p’borough truckfest!!!
Thought I would jump in while everyone else is asking, my heater blows hot on the drivers side but cold on the passengers side.
Anyone got any ideas what I could try?
2004 94G if that helps with the removable control on the wall.
Claretmac:
Don’t suppose you are one of these scania drivers who has about 3Ton of lights and gizmo’s fitted are you, if so might be drawing all the power away from your night heater!! Haha

Cue abusive responses from scania drivers!!!
Please don’t take this comment to heart guys, don’t mean any offence!!! Just bit of light hearted humour following what I saw at p’borough truckfest!!!
Me? Haha no, I don’t see the point, even less so the drivers that buy them themselves! Each to their own though I suppose 
The only things I buy for the truck are things that benefit me 
Just put a nice warm coat on sorted