MES MB20072816 Not Heating

[UncleRichard]

My masterbuilt smoker stopped heating and I have not been able to fix it. I've had this for probably +5 years and it's awesome until now. Stumbled around the internet and found this forum. Here is what's going on..
-Heating light is on at the control panel but doesn't heat
-I can hear the circuit board click when setting the temperature
-Replaced control panel but didn't fix
-Replaced element but didn't fix. Verified old element 12.2 and new element 12.0ohms. New element is in it. Did not replace wire connectors at element because they were not corroded in my opinion. Didn't appear to be any major heat damage in the element compartment area.
-Verified no voltage at elements when it's on and no voltage on the red/black wires connecting to the circuit board.

It would be appreciated if someone could point me in the right direction.

 

[smokerjim]

Safety rollout switch?

 

[chopsaw]

Change out the connectors . 5 years old it's time . Could be when they get hot they disconnect .
I had that happen .

However , problem might be the limit switch / snap disc is shot . That's the round , flat looking thing on the back wall . Depends on what model you have on the location .

Also , some of the newer models have and access panel on the back to get to the wires for the limit . If not you'll need to cut one .

You could take the wires off the element ( unplug it first ) and do a resistance check for continuity when cold . Not sure if that works though . Best way would be to access the back of the switch . Check the wires , and do an ohm check at the terminals .

 

[UncleRichard]

Change out the connectors . 5 years old it's time . Could be when they get hot they disconnect .
I had that happen .

However , problem might be the limit switch / snap disc is shot . That's the round , flat looking thing on the back wall . Depends on what model you have on the location .

Also , some of the newer models have and access panel on the back to get to the wires for the limit . If not you'll need to cut one .

You could take the wires off the element ( unplug it first ) and do a resistance check for continuity when cold . Not sure if that works though . Best way would be to access the back of the switch . Check the wires , and do an ohm check at the terminals .

Okay. I ordered new temperature limit switch and connectors from Amazon. Will have them Monday and will post results.

Have to order the switch regardless due to breaking the connectors off!!