Chassis Heat

[Jeff Miller]

I agree with Ernie, it appears that the electrically
operated "sporlan" valves that diverts water either through the water-
heater and then return to the engine, or throught the water-heater
and then the chassis heaters are not operating.

Most likely this is an electrical issue. It can be a bad circuit-
breaker, not sure which ones in an '82 RB, could also be the
winter/summer switch or its wiring to the dash, you'll need to do
some chasing on this.

If the chassis heaters are actually getting warm water but not
blowing (slide the sofa out and feel the top of the heater after the
engine is good and warm) then it is probably either the circuit-
breaker or the thermostat, both of which I've seen go bad many times.
The summer/winter switch on the dash is common to both the heat
exchanger flow and the blowers.

- Jeff Miller
in Holland, MI


--- In WanderlodgeForum@yahoogroups.com, "Scott Forman"
<sforman@r...> wrote:
>
> I cannot get the chassis heat to work in my FCRB. The water is
> circulating to the back, as it heats the hot water heater as it
should,
> but I cannot get water to flow into any of the heat exchangers. I
also
> cannot make the fans blow. I have followed the instructions in the
> manual (winter/summer switch to winter, chassis heat thermostat on)
but
> no luck. My auxillary pump works, this doesn't help either.
>
> Any pointers? Do the chassis heat fans have an override that keeps
> them from blowing if there is no heat in the heat exchanger? Where
is
> the valve that the winter/summer switch operates?
>
> Thanks
>
> Scott Forman
> 82FCRB
> Memphis
>