Furnace not heating

Texdan

Senior Member
Joined
Nov 4, 2014
Messages
311
Location
Whitney Texas
I have a 2020 Reflection 29RS. Turned the heater on last night and ignition kicked on for just a few seconds then heat stopped. Checked propane and it's fine. Shut off and repeated several times waiting 5 min. between starts. Saw a tip on here about turning fan on then move to heat, put fan on low and tried again. It worked. Went to bed and this morning it's 62 inside. Tried resetting again and ignition is not starting anymore but blower is working. Any ideas? Bad ignition? Propane supply problem? Turned on all 3 burners on stove and they're working fine. Tried searching on here but can't find info with this problem. Summer is finally over here in Texas, Help!
 
More than likely your limit switch. Same issues as yours, just replaced mine and works fine now. Easy to replace, just need to access the back of your furnace. Mine is a Suburban Q35.
 
Well, when I got home this afternoon I tried again and it worked! So turned it off and waited a while and retried and it didn't work. Messed with the propane by disconnecting and bleeding the line via the stovetop, hooked tank back up and retried. Worked again. However, for some reason the dual regulator shows red even though I have a new tank on it and lever pointed to it. But furnace comes on (and 2nd tank is closed). Guess I'll find out later tonight and hope I don't wake up freezing in the middle of the night. If happens tonight guess I'll call GD for help/ideas.
 
Well, went to bed and furnace was working fine. Woke up this morning and no heat again. Blower kicks on but blows cold air. Turned on stove burners and they worked fine. Anyone have an idea?
 
Spoke with Grand Design and they are saying it's most likely a motherboard. Mobil mechanic coming tomorrow to check it out.
 
If you have no heat but it kicks on probably the board. Didn't mention my board was replaced with previous owner, not sure if they had the same issue but didn't work when we bought it so narrowed it down to the limit switch. May want to change the switch it out anyways while the tech is there. Good luck.
 

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