New member would appreciate help

Hi All,
After many years of reliable service my 1994 Austroflamm Integra insert pellet stove is having a problem. Looking back, its only repair was an auger motor replacement a few years ago, so I have nothing but praise for this trusty old friend. Anyway, the problem is that the convection combustion motor won't shut off unless the stove is unplugged. Everything I have read so far indicates that a low limit switch is responsible, so I did the following.

I removed the switch, heated it up slowly until I heard a click and then checked across both terminals for
continuity. There was continuity along with zero resistance. Next, after waiting a while for the switch to cool-down and hearing a click, I checked for, and confirmed a disconnect. The next day I reinstalled the switch back into the cold and unplugged stove. I then plugged in the stove but did not turn it on, however the fan ran anyway. Then while the fan was running I disconnected both limit switch terminal wires but the fan still ran. So now I am thinking there may be another reason for the problem.

Your advice and comments would be appreciated.
Thanks,
Frosty

SmokeyTheBear said:

Control board or a short in the wiring that goes from that snap disc to the control board.

Click to expand...

Thanks.......just on more question
A new control board is $400, as a temporary fix would it be possible to shutdown the stove by turning off the power panel switch as normally done, then after cool-down pull the power plug from the wall receptacle ? Reverse for start-up.

SmokeyTheBear said:

Yes that would work as far as shutting the stove down is concerned, sounds like the convection blower side of the controller is stuck on.

Click to expand...

I think you are correct.....I'll go with the temp fix for a while and then get another controller board when back to work.
Thanks again !

frosty said:

Hi All,
After many years of reliable service my 1994 Austroflamm Integra insert pellet stove is having a problem. Looking back, its only repair was an auger motor replacement a few years ago, so I have nothing but praise for this trusty old friend. Anyway, the problem is that the convection motor won't shut off unless the stove is unplugged. Everything I have read so far indicates that a low limit switch is responsible, so I did the following.

I removed the switch, heated it up slowly until I heard a click and then checked across both terminals for
continuity. There was continuity along with zero resistance. Next, after waiting a while for the switch to cool-down and hearing a click, I checked for, and confirmed a disconnect. The next day I reinstalled the switch back into the cold and unplugged stove. I then plugged in the stove but did not turn it on, however the fan ran anyway. Then while the fan was running I disconnected both limit switch terminal wires but the fan still ran. So now I am thinking there may be another reason for the problem.

Your advice and comments would be appreciated.
Thanks,
Frosty

Click to expand...

I my original post I wrongly stated that the convection would not shut-off unless the stove was unplugged. What I meant was that the combustion motor would not shut-off unless the stove was unplugged. Does it make a difference to any advice that was given me ?
Thanks

SmokeyTheBear said:

Nope, still a likely control board or wiring issue (less likely it is a short in the snap disc wiring however).

Click to expand...

I thought likewise................thanks again!