Thermistor; Condensate Pump; Float Safety Switch - Jon-Don R340 Owner's Manual

5.4 Thermistor

The defrost thermistor is
attached to the refrigerant
suction line between the
accumulator and the
evaporator.
To replace thermistor:
1. Unplug the
dehumidifier
2. Remove the front
housing
3. Cut cable ties and
remove the insulation and aluminum tape.
4. Remove control panel
5. Unthread thermistor from control housing grommet
6. Detach thermistor from control board jumper
7. Reassemble thermistor and dehumidifier using the above
procedure in reverse

5.5 Condensate Pump

The internal condensate pump removes water that collects in
the reservoir.
To replace the condensate pump:
1. Unplug the unit
2. Remove the front housing
3. Unplug the pump wires from the wire harness
4. Remove the condensate hose and the one screw
attaching the pump bracket to the compressor support
5. Replace the pump, hose, wiring, bolts, and housing in
the reverse order
Figure 7: Picture of pump and float switch brackets screw.
Toll-Free 1-800-556-6366
Figure 6: Thermistor attached to the
refrigerant line.

5.6 Float Safety Switch

The float safety switch activates when the water rises too
high in the condensate reservoir. The float safety switch
turns off the compressor until the water level lowers and
disengages the switch.
To replace the float safety switch
1. Unplug the dehumidifier
2. Remove the front housing
3. Unplug the float safety switch wires from the wire
harness
4. Remove the one screw attaching the pump and float
switch bracket to the compressor support
5. Remove the pump from the reservoir and slide out the
float switch from under the compressor support
6. Replace the float, pump, wiring, bolts and housing in the
reverse order
Figure 8: Picture of the
float safety switch
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