furnace motor surges

[brooksider]

on my 2010 Mountainer the furnace motor speed slows and then picks up like there is a current drop. any suggestions

[RMcNeal]

Check your batteries. It should be 12 volt. Are you on shore power? If not batteries, then maybe converter?

[jcurtis934]

You can remove the cover to the furnace and move the motor by hand to see if you feel it spinning freely or not. That motor is more than 10 years old...seniors always move slower than others.

[brooksider]

Thanks

[brooksider]

I removed the fuenace and the motor runs great. I believe it has some to do with power drop.Have 12v at the batt. need to check and see what the delivered power is when it slows.
Thanks

[mlh]

Check all of the above. If none check out make sure all of the wires are tight.
Lynwood

[jimcol]

I think most these converters have 3 stage chargers. Could the furnace fan be speeding up when the converter is delivering maximum charge to the battery?