Jon-Don R340 - Thermistor; Condensate Pump; Float Safety Switch

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
dehumidier
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 dehumidier 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 8: Picture of the
oat safety switch
5.6 Float Safety Switch
The oat safety switch activates when the water rises too
high in the condensate reservoir. The oat safety switch
turns off the compressor until the water level lowers and
disengages the switch.
To replace the oat safety switch
1. Unplug the dehumidier
2. Remove the front housing
3. Unplug the oat safety switch wires from the wire
harness
4. Remove the one screw attaching the pump and oat
switch bracket to the compressor support
5. Remove the pump from the reservoir and slide out the
oat switch from under the compressor support
6. Replace the oat, pump, wiring, bolts and housing in the
reverse order
6
Figure 7: Picture of pump and oat switch brackets screw.
Figure 6: Thermistor attached to the
refrigerant line.
www.jondon.comToll-Free 1-800-556-6366