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RV Repair/How to light furnace


We purchased a 1977 Holiday Rambler but no owner's manual.  Can you tell me how to light the furnace so we can have some heat?

there is an on/off switch on the wall somewhere opposite the furnace.  it is like the one in you house, only less technological.  you then set the temp where you want it.  You will hear a purge motor run for a minute and then the air will turn warm.  if the air does not turn warm in a minute or two, the system may shut down.  this is usually lack of propane.  

good luck.  sorry so long with response.  I was camping the last two weeks and forgot to turn off the all experts questions.

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