My DOWNDRAFT stove burnt the circuit board on the "high" side relay, for the downdraft blower. I switched the wires around to make sure it was in fact the relay. It was, the fan works on the high setting if I hook the high to the other relay. The non working side... relay still clicks and the board is burnt under it. Relay is fine, or appears to be, board is not deformed other then the copper path. Does a fan motor need both power sources for "high" vs "low" setting? Or, if I just simply switch the wires will I have my high setting back and just be out the low setting? I do not understand motor windings vs voltage vs high/ medium/ low settings???
Also, Im not really understanding what burnt the board. Just a bad spot in the board? Or would it be the fact that when you turn the downdraft on its first setting (same button) is high instead of low. It was my understanding that a motor WITH a squirrel cage always started in low first to get it moving before the load of "high" was applied. Opposite of your typical fan motor. Guess I am wondering if the load of the grease, from the fact its a downdraft, created a large load and burnt the board. Having it start in low first would help this, would it not?
Also, Im not really understanding what burnt the board. Just a bad spot in the board? Or would it be the fact that when you turn the downdraft on its first setting (same button) is high instead of low. It was my understanding that a motor WITH a squirrel cage always started in low first to get it moving before the load of "high" was applied. Opposite of your typical fan motor. Guess I am wondering if the load of the grease, from the fact its a downdraft, created a large load and burnt the board. Having it start in low first would help this, would it not?
