VC Montpelier insert fan turns off then on

[bostoneddie]

Hi all,

I have had a Vermont Castings Montpelier wood stove insert for a little over ten years, in that time it has worked flawlessly. Last few times using it, when it reaches temperature the fan kicks on automatically, but then only runs for a minute or so and then turns off. Several minutes later, it will then kick on again and stay on normally.

Have searched the web and Hearth forums and it sounds like the snap disc regulates this, but I'm not sure what to do about this specific problem. Should I go ahead and replace the disc? Any other parts that might be involved? Or is this not even an issue and I should just try cleaning the fan assembly out or something basic first? Greatly appreciate your help, thanks.

 

[DAKSY]

Start with the thermo disk. Make sure it is seated securely against the firebox. It might be barely making contact- enough to actuate it, but if the bracket gets hot and the metal expands due to heat, it can disengage the contact. Once it cools, the disk will make contact with the firebox & reactuate it.