Blower Wheel; Thermistor - GE DCVH480EK Technical Service Manual

Thermistor

The thermistor is located on the upper rear area
of the blower housing. It is below the outlet
thermostat. The thermistor measures outgoing air
temperature and responds to temperature changes.
The thermistor provides temperature change
information to the control board. The control board
makes heating decisions based on this information.
The thermistor has an approximate resistance value
of:
Ω at 140°F
• 11.24 - 13.08K
Ω at 104°F
• 23.76 - 28.52K
Ω at 68°F
• 55.08 - 68.43K
Operation of the thermistor can be checked by
using the service test mode. (See
Specifi c failures associated with the thermistor can
initiate error codes tS and t0. (See
To access the thermistor, it is necessary to remove
the drum. (See
Drum and Bearing
connects 2 light blue wires to the thermistor. The
thermistor is attached to the blower housing with a
Phillips-head screw.
Disconnect
Thermistor
The blower wheel is held to the blower motor shaft
with a 14-mm hex nut. To remove the blower wheel,
it is not necessary to remove the blower motor
from the blower housing. The blower wheel can be
removed by removing the blower wheel access ring
from the duct cover assembly. The blower wheel
access ring is attached to the duct cover assembly
with 1 Phillips-head screw and 2 tabs.
To remove the blower wheel:
1.
2.
3.
.)
Service Test Mode
.)
Error Codes
.) A wire harness
– 34 –

Blower Wheel

Remove the drum. (See
Remove the Phillips-head screw from the blower
wheel access ring.
Slide the blower wheel access ring to the left
and remove it from the 2 tabs on its right side.
Access Ring
.)
Drum and Bearing
Tab
Tab
(Continued Next Page)