I have a 1999 southwind 32v ford chassis. There is a red switch on the left side of the steering wheel on the the dash that says, "heater". I looked all through the manual and haven't come across what that is for. Would i be right to guess that it is for the holding tank heaters? Would that draw off of the house batteries or the main battery when turned on?
"heater" switch
- Thread starter millbro
- Start date
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Molaker
Well-known member
Could be, I suppose, but it could also be an outside mirror heater or possibly even a seat heater. Hopefully, someone with a similar MH can answer without guessing like I am. 
John From Detroit
Well-known member
On Dash, Mirrors.... Or block heater.
On house control panel, bathroom or kitchen,, Tanks.
Question: Do you have any kind of energy monitor (Such as a Progressive Industries Surge protector with LCD display)
If you do take a reading, change nothing, and turn on that switch, take another reading, if it just went up 10 amps... Good chance it is a block heater (Note: 10 is an approximation).
Watch your DC volts if dash is so equipped,,, Mirror heater may cause a SLIGHT drop. if your engines are not running and there is no shore power.
On house control panel, bathroom or kitchen,, Tanks.
Question: Do you have any kind of energy monitor (Such as a Progressive Industries Surge protector with LCD display)
If you do take a reading, change nothing, and turn on that switch, take another reading, if it just went up 10 amps... Good chance it is a block heater (Note: 10 is an approximation).
Watch your DC volts if dash is so equipped,,, Mirror heater may cause a SLIGHT drop. if your engines are not running and there is no shore power.
billwild
Well-known member
- Joined
- Dec 8, 2009
- Posts
- 882
On our previous class c motorhome we had an extra knob marked heater, and it was for the rear bedroom. However it was in the rear bedroom
