I have a code F22.
Answer Hello Buddy. Exhaust
Thermistor Open. The machine control electronics monitors the exhaust temperature using the
exhaust thermistor, and cycles the heater relay on and off to maintain the
Begin with an empty dryer and a clean lint screen.
1. Plug in dryer or reconnect power.
2. Start the Timed Dry cycle.
3. If after 60 seconds, F-22 or F-23 flashes in the display and the dryer shuts
off, the thermistor or wire harness is either open or shorted. ? Unplug dryer or disconnect power.
? Check wire connections at the machine control electronics and
thermistor. See Accessing & Removing the Electronic Assemblies on
page 13, and for thermistor location see figure 10.
? If wire connections are OK, check the exhaust thermistor resistance per
4. If F-22 or F-23 does not flash in the display, the connections to the
thermistor are good. Therefore, check the exhaust temperature value at any
or all of the temperature levels in question, using the Timed Dry cycle, and
the following process:
Hold a glass bulb thermometer capable of reading from 32° to 82°C (90° to
180°F) in the center of the exhaust outlet. * The measured overshoot using the glass bulb thermometer in the exhaust
outlet can be 17°C (30°F) higher.
5. If the exhaust temperature is not within specified limits, or you have come
here from step 3, remove the P14 connector, then measure the resistance
between P14-3 (red-white wire) and P14-6 (red-white wire) at the
connector. See figure 16, page 14 for connector location; and Accessing &
Removing the Electronic Assemblies, page 13.
? If the resistance is OK, check P14-3 and P14-6 to machine ground.
? If resistance is greater than 0 (zero), replace wiring harness.
NOTE: All thermistor resistance measurements must be made while dryer is
unplugged or disconnected from power.
What would cause a dryer to not start at all?
Answer Hello sharonda. Either a bad fuse or door switch in the unit will cause the issue. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html