Customer Questions and Answers for Speed Controller Assembly by Frigidaire

Hi Jeff. Unfortunately the control board manufacturer does not supply us with the part # for that particular varistor size. Which as you know is crucial for the board protection. The down to nuts and bolts question is why did the varistor blow ? This is the same reason as to why the manufactures solder a non replaceable board fuse. There is an underlying cause and you would be just replacing the end result. Use a volt/ohm meter part #@ MA-DM1 to assist you in your diagnostics. Find the service tech sheet inside the unit top ,side or in the front bottom cover under the door. It will allow you to put the unit in a field service diagnostic mode and bring up a fault code of the effected circuits. It explains the reasons and what to do . Like ohming the motor windings and testing them individually to ground. It will give you the ohm values. This way you can be certain of only needing the correct part. Sorry but the motor controller is part # 134149220. Make sure the connections are all tight. Thank You.