Outlet Control Thermistor - GE GHDS830EDWS Technical Service Manual

Outlet Control Thermistor

The outlet control thermistor is located on the back
of the blower housing. The outlet control thermistor
measures outgoing air temperature and provides
temperature change information to the control
board.
The thermistor has a negative coeffi cient. As the
temperature increases, the thermistor's resistance
decreases.
Outlet control thermistor approximate resistance
values:
118 - 122K  at 69°F (20°C)
•
98 - 102K  at 77°F (25°C)
•
78 - 82K  at 86°F (30°C)
•
Operation of the outlet control thermistor can
be checked by using the outlet thermistor test in
service test mode. (See
Service Test Mode
Specifi c failures associated with the outlet control
thermistor can initiate error codes F02 and F04. (See
.)
Service Test Mode
To access the outlet control thermistor, it is
necessary to remove the drum.
The thermistor is attached to the blower housing
with 2 Phillips-head screws. Two wires are
connected to the thermistor.
Outlet Control Thermostat
The outlet control thermostat is located on the back
of the blower housing. The outlet control thermostat
measures outgoing air temperature and provides
temperature change information to the control
board.
If the thermostat reaches a temperature beyond its
maximum temperature rating, it will trip and disable
power to the heating elements (electric model) or
burner assembly (gas model).
The outlet control backup thermostat opens at
145°F (63°C) and will automatically reset at 130°F
(54°C).
To access the outlet control thermostat, it is
necessary to remove the drum.
The thermostat is attached to the blower housing
.) with a Phillips-head screw and a tab. Two wires are
connected to the thermostat.
Outlet Control
Thermistor
– 33 –
Outlet Control
Thermostat