My Maytag gas range went out the other day. After switching from 425 to high broil, there was this loud “snap” and the oven LED display went nearly blank. All that displayed was a lone LED segment and the indicator light for the clock. There was a faint whiff of ozone in the air. Thankfully the oven went off.
I cycled power with no change in the display. Next day I called our local appliance store and talked to “Jeff” about what might be wrong. He suggested cycling power for an extend period. So that night I tripped the breaker on the range for a good 3 hours with the same results: one lone LED segment lit and no error codes.
Maytag Control Unit
Back to “Jeff”, except this time it’s “Dave” on the other end. I give Dave the model and serial number, describe the problem, and await the bad news – new control unit, probably $215 + labor. I ask about installing it myself. Sure, just check the power to make sure you’re getting 110-120 volts across “power-to-neutral” and “power-to-ground”. If that’s OK, then they can order the part and a dozen screws later it’ll be in.
So this evening I pulled the stove out – not too hard. I shut off the gas and removed the dozen or so screws holding the back panel on. Once unplugged I tested the voltage – all set at 119 and change. I labeled all the wires to the control unit, and then removed it. I started looking around for a burned part on the control unit. It didn’t take to long to find it – a burned solder trace between 2 IC parts. Some Siemens part that controls voltage. The color of the trace was visibly discolored between the parts.
I looked up the model number on line and found the part for about $130. Jeff and Dave won’t be getting my part business but I appreciate the debugging help they gave me. Consult local, buy global – that’s my motto. Hopefully the part will be in before the weekend. Until then, grill, baby, grill.
Pictures of the PC board in various stages of dis-assembly are here.
