Chassis Heat

[Scott Forman]

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