Atwood Rv Furnace Sail Switch

Several things can be checked for a cause in this case.

Atwood rv furnace sail switch.

Diy with rv replacing limit switch atwood 8535 so at some point of course that was a coldest part of our trip in yellowstone furnace atwood 8535 iii started blowing cold air only. How to rv furnace repair sail switch lighting procedure in this video i bench test a manual light propane rv furnace and locate the sail switch i also show h. It insures that the combustion wheel is rotating fast enough so that there is a proper air and gas mixture for smooth ignition. It is a safety component that will not let ignition occur until it sees 75 of the motor s rpm s.

After reading numerous articles forums manuals i started troubleshooting and found out that limit switch don t confuse it with sail switch is not. Took the furnace back to the rv cold night and installed it. As a result the vent will work but no heat will be produced. The sail switch acts as a safety device making sure there is no propane flow without air flow.

The sail switch is an air proving device. Also of note on my heater model the sail switch was mounted inside of the fan enclosure. Furnace would not light. After replacing the sail switch my furnace works perfectly.

Took it all back apart and found the new sail switch worked 1 time. I pulled my entire heater out of my rv but didnt need to. If i had known where the sail switch was located you can access it by removing the top half of the fan enclosure. How do i test sail switch on the furnace it s 8531 atwood hydroflame answered by a verified rv mechanic we use cookies to give you the best possible experience on our website.

Dometic atwood 33063 replacement low air flow sail switch. This is a replacement sail switch for select atwood afs series furnaces. Ordered attwood 36680 s w and installed it furnace and it worked fine. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them.