Temperature Adjust on F53 chassis
The temperature adjust control on my dash seems to have only two settings: cold or hot. Very little turning of the knob results in the temp going from cold (or hot)to the exact opposite. No warm or co...
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My Fleetwood does not have a blend door. Temperature is adjusted by a control valve in the water line. It did not work very good until I changed it out to an H valve that bypasses the heater hoses rather then tries to shut it off.
