Doug Johnson
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Posts posted by Doug Johnson
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my 2008 Mack truck the heat controller doesn't change setting floor defrost panel, the temp control doesn't change temp. The fan has all 4 speeds and I have put a new controller on it.
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in Mack Truck Q & A
Posted
My 2008 Mack heater doesn't change setting or temp. The fan works on all 4 speeds and I have a new controller installed, what else can it be?