Austroflamm won't turn down to low setting

[RancherPacker]

I really love my 1992 Austroflamm Integra, Finally got it tuned up and burning great! However recently now that it is Spring and we need it to burn on low setting it doesn't want to do that. It burns at least at medium or even high. Sometimes it will turn down and do a nice comfortable lower mellow burn but if I adjust the knob up again then it won't turn down again until I fiddle with the knob tap or off and on. Is it the user control board or what could be causing it to want to burn to burn hotter than a low setting?

Yes it used to turn on low and work very well.

 

[bogieb]

It might be the Pot dial itself - it may have developed a "flat" spot. This happens sometimes on Harman's, and replacing the dial solves the issue. This may or may not have any bearing at all on your stove though. Hopefully someone who knows more about your stove, and / or about Pots can chime in because I have used up my entire store of knowledge

 

[alternativeheat]

My guess is a pot as well. Sometimes you can squirt some contact cleaner in them and rotate the dial back and forth a few times and see if that clears it up. The contacts can and do get dirty. Course if there is a mechanical failure with the pot all the cleaner in the world won't help it, you have to replace it. That said an Integra guru might come along and tell you just what to look for. I'm also in the Harman camp and cleaner has worked for quite a few Harman users.

 

[smwilliamson]

I'm fairly certain that you have a bad hall sensor on the exhaust blower. The board is reading a lower RPM than it should and is over compensating. You also may have a corrupt EPROM chip in the motherboard.

 

[smwilliamson]

EPROM is easy to diagnose, check timing and voltages during start up and run.

Troubleshooting:
http://pelletstoverepair.com/Integra Troubleshooting.htm

Tech manual:
http://pelletstoverepair.com/IntegraTechManual.pdf