Grand California

[Colinduncan1919]

Does anyone know what button 1 and 2 is next to the control panel?

 

[Bobcat01]

Setting 1 and 2 is for truma burner operation at different altitudes, details are in the trauma manual.

 

[andyinluton]

Is that only on the Diesel powered heater? mine is gas & doesn't have the switch.

 

[Bobcat01]

Looks that way Andy, mine is diesel also.

 

[NoeleeHeary12]

Does anybody know where the air intake for the Truma is ? I’m struggling with a 122H error

 

[Iron Van]

I believe the intake is in the garage, on the left hand side (near the white filter). I had the same code and I opened the heater vent in the bathroom, reset the panel behind the bench seat door, and it was fine.