jzm2cc
Minister of Fire
The boards are fixable if discrete components fail like Triacs, resistors, capacitors, etc. If the microprocessor is damaged its a gonner.
Forget about obtaing a schematic though.
First step to fixing is determining what it's not doing that it should be. Like for example, the convection fan isn't running, or auger isn't working. If these motors work when powering directly with 110V and the snap disks or vacuum switches are ok, then it's usually a Triac failure or wiring problem. Tracing the motor wire back to the board connectors, then to circuit board traces will lead you to the triac or other local components involved. Some may look overheated and damaged, others have to be measured with a multi-meter but usually fixable with $10 in parts and a little to a lot of labor.
Forget about obtaing a schematic though.
First step to fixing is determining what it's not doing that it should be. Like for example, the convection fan isn't running, or auger isn't working. If these motors work when powering directly with 110V and the snap disks or vacuum switches are ok, then it's usually a Triac failure or wiring problem. Tracing the motor wire back to the board connectors, then to circuit board traces will lead you to the triac or other local components involved. Some may look overheated and damaged, others have to be measured with a multi-meter but usually fixable with $10 in parts and a little to a lot of labor.
