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Exercise caution when removing heavy parts.
3. Remove the cover over the Return Air thermistor
box and unplug the thermistor.
4. Pull out the thermistor holder and thermistor inside
the box.
Fig. 4
Fig. 3
2. Thermistor (Return Air)
1. Remove the Filter panel (2 thumbscrews).
2. Remove the Blower panel (2 screws).
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