Forum Discussion
DrewE
Feb 09, 2019Explorer II
It depends on the system setup and maybe how things are wired. On my RV the thermostat had separate switches for High and low speed and for auto and constant-on, so you chose what speed it would run on auto mode. I would guess typically it's high, but a bit of experimentation should make it obvious.
The fan speed only applies to the air conditioner; practically all RV furnaces have a single fan speed.
The fan speed only applies to the air conditioner; practically all RV furnaces have a single fan speed.
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