Maytag range had "F3" code display, oven would not work.

ApplianceMaytag Range

ModelCHE9800BCB

Level of DifficultyDifficult

Time to do repairMore than 2 hours

Age of ApplianceMore than 10 years

Tools Nutdriver
Screw drivers

phillip From Farmington, NM

Feb 23, 2014

Oven sensor replacement was easy. Thermistor was installed in less than 15 minutes. After installation STILL had "F3" error message. Harness was ok, "Clock" or ECU needed to be replaced. "Computer" is obsolete, no spares available, some companies will rebuilt for $400+. Since the stove was going to the landfill I had nothing to lose by taking the "Clock" apart. It has one chip that is probably the power supply and control chip, another chip is an EEPROM with 128 bytes of storage and the last is a darlington chip that controls the relays. Cleaned up everything that looked like it needed cleaning with alcohol. When I reassembled the unit the pins for the thermistor harness felt loose, so I took it apart, again, and found cold solder joints on all four pins. It must have been there all along but plugging and unplugging the harness finally broke out the solder so I could see it. Soldered the pins back in and now it all works. It's worth a try if you're getting the "F3" message. If the relays on your stove aren't working it would be a good idea to replace the darlington chip. Good luck.

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Diagrams and Parts List for this repair

Part PhotoPart DescriptionPriceAvailability

Long Oven Sensor

Part Number: PS1570174

$29.25
In Stock