![GE DCCH480EK Technical Service Manual Download Page 34](http://html.mh-extra.com/html/ge/dcch480ek/dcch480ek_technical-service-manual_126183034.webp)
– 34 –
Note:
The 2 touch sensors in the drum support are
not replaceable. To replace the sensors, replace the
drum support.
The sensors are connected to the main control
board. The sensors are spaced approximately
1/2-in. apart, creating an open circuit to the control.
• The control board utilizes a low-voltage
capacitor that charges to approximately 5 VDC
when the circuit is open and discharges to less
than 1 VDC when the circuit is shorted.
• When wet clothes tumble across the two
sensors, the clothes create a very low resistance
between the sensors. This low resistance
discharges the capacitor.
• As the clothes become dry, their resistance
value increases and the charge across the
capacitor builds to approximately 5 VDC.
• Operation of the touch sensors can be checked
by using the service test mode. (See
Service Test
Mode
.)
• Proper leveling of the dryer is vital for accurate
sensor drying. If the front of the dryer is raised
too high, clothes will tumble toward the rear of
the drum, preventing contact with the sensors.
This could produce a false dryness reading.
Touch Sensors
The touch sensor consists of 2 sensors permanently
attached to the drum support.
Drum Rollers
The front of the stainless steel drum rotates on 2
rollers attached to the inside of the drum support.
The rollers can be replaced by removing the drum
support. (See
Drum Support Assembly
.) Each roller is
part of an assembly that consists of a roller,
1/2-in. hex-head screw, and a bushing.
Roller
Bushing
Back Cover
It is necessary to remove the back cover to access
the heater assembly, inlet thermistor, manual reset
thermostat, and rear blower wheel.
The cover is attached to the back of the cabinet with
16 Phillips-head screws and 2 slots that engage 2
tabs on the cabinet.
Tab
Tab
Back Cover