Grain Systems PNEG-1181 User Manual
Page 62
62
PNEG-1181 Portable Dryer Troubleshooting
9. Wiring Reference
Procedure for Locating, Testing and Replacing a Defective Plenum
Temperature Sensor (Continued)
8. With an ohm meter, set the scale to 20k (if it is not an autorange model).
9. Place one probe of the meter on one wire going out to the sensor and the other probe to the other wire.
10. The meter should read close to the
Resistance/Temperature Chart on Page 60
11. If the wiring from the heater board to the sensor is okay but the resistance is not close to what is
on the chart, a bad plenum bolt sensor is likely.
The picture below is of the plenum bolt sensor in the plenum of dryer.
for
more information.
Figure 9D Plenum Bolt Sensor (Part No. HF-7236)
The picture below is of the 4" x 4" plastic junction box wiring. Which is located to the right of the
fan/heater facing the dryer. It contains the plenum thermal overheat and a junction point where the wires
from the plenum sensor are butt connected together.
Figure 9E
Plenum 300 Degree Overheat (10' Length) (Part No. D03-0004)
Plenum 300 Degree Overheat (24' Length) (Part No. D03-0377)