Atwood Hydro Fame ii
We have an 1992 Fleetwood Flair with an Atwood Hydro Flame 8535 ii We are having problems with the sail switch failing! What hapened is for the last 5 yrs we have had to replace the burner & iginto...
Forum Discussion
Many replacement sail switches don’t have sufficient sail area for the spring they use inside the switch. Flow restrictions in ducts or returns can make the problem worse, so be sure nothing is blocked or closed.
The switch is a common micro switch with a sail attached. It’s possible to disassemble the switch and reduce the spring strength or to increase sail area. YouTube has examples of disassembling microswitches.
Micro switches are specified by operating force in grams-force. If you can post pictures of the actual switch with all text and logos, I may be able to recommend a better switch.
We found it to be a weak fan motor.. Waiting on part to arrive.
I would caution about alterating the spring pressure from the proper microswitch, the switch and metal strip size are to ensure a minimal amount of air flow is going through the combustion chamber to purge vapours before ignition and insure proper combustion. It is possible to alter it to much and cause potentialy dangerous issues.
there is also the issue that to many people change the sail switch for no reason the with in days they are having the same issues. sail switches are rarley the issue, but seam to be the first thing people recomend to change in my opinion.
We found it to be a weak fan motor.. Waiting on part to arrive.
thats the number one cause of a re occuring sail switch issue, I was at work but I was going to ask if the motor is making any noises when it first starts.
