Outlet Control Thermistor - GE GFDS350 Technical Service Manual

To remove the inlet control thermistor:
1. Remove the drum. (See
2. Disconnect the 2 wires from the inlet control
thermistor.
3. Remove the Phillips-head screw that attaches
the inlet control thermistor to the heater
assembly or diffuser.
4. Lift and slide the thermistor from the heater
assembly or diffuser.
Electric Model Shown

Outlet Control Thermistor

The outlet control thermistor is located on the
lower rear area of the blower housing. It is below
the moisture shield and the outlet control backup
thermostat. The outlet control thermistor measures
outgoing air temperature and will respond to
temperature changes of 3°F. The thermistor relays
this information to the control board.
The outlet control thermistor has the same
resistance values as the inlet control thermistor. (See
.)
Inlet Control Thermistor
Note: If the control reads a thermistor value too
high or too low, it will log an error code and switch
to a setting where the heaters are on a duty cycle.
The dryer then relies on the backup thermostats to
control the heater and will go into fall back mode
when it has determined that it can no longer rely on
the thermistor temperature to control the applied
heat. This occurs when a thermistor cannot sense
heat (failed open) or reads hot (failed closed). The
fall back mode consists of reducing the maximum
heating power (typically 50%) so that thermostats
are fast enough to shut down the heater in case of
overheating. On GE dryers, both heaters are cycled
on and off every minute.
.)
Drum
Inlet Control
Thermistor
– 43 –
Operation of the outlet control thermistor can be
checked by using service test mode T05. (See
.)
Test Mode
Specifi c failures associated with the outlet control
thermistor can initiate error codes E5 and E6. (See
.)
Service Test Mode
To remove the outlet control thermistor:
1. Remove the drum. (See
2. Remove the Phillips-head screw and the
thermostat moisture shield from the front frame.
3. Disconnect the 2 wires from the outlet control
thermistor.
4. Remove the 2 Phillips-head screws that attach
the outlet control thermistor to the blower
housing.
Outlet Control Thermistor
Electric Model Shown
Service
.)
Drum
Thermostat
Moisture Shield