Outer Cover; Thermistor - GE Advantium PSA1200R Technical Service Manual

Disassembly
To remove the Humidity Sensor:
1. Remove the Outer Cover. (See
2. Remove the Air Tunnel Cover.
(See .)
Air Tunnel Cover
3. Remove the 2 Phillips-head screws that hold the
sensor in place.

Thermistor

• Location (See
Right Side View
• The upper thermistor (blue and white wires)
is used for thermal compensation and more
control in a higher temperature range (above
300°F) for Speed Cook, Broil, Toast, and
Convection.
• The lower thermistor (red and white wires) is
used for more control in a lower temperature
range (below 300°F) and is used for Proof and
Warm.
• When the thermistor harness is disconnected
from the Smart Board, 5 VDC can be read
between Smart Board CN9 pins 1 and 2 and
between pins 2 and 3.
.)

Outer Cover

Humidity Sensor
.)
– 44 –
Troubleshooting
• To test the upper thermistor, check resistance
between the blue and white wires. Resistance at
room temperature is 100 K Ω.
• To test the lower thermistor, check resistance
between the red and white wires. Resistance at
room temperature is 256 K Ω.
Disassembly
To remove the Thermistor:
1. Remove the Outer Cover. (See
2. Remove the Phillips-head screw holding
Thermistor is place.
.)
Outer Cover