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E. Thermistor Check
To check thermistor resistance, follow the steps below.
1) Remove the front panel. Move the control switch to the "OFF" position, then unplug the
icemaker from the mains socket.
2) Remove the control box cover.
3) Remove the thermistor.
4) Immerse the thermistor sensor portion in a glass containing ice and water for 2 or
3 minutes.
5) Remove the white thermistor connector from CB K3 (white) connector and check the
resistance between thermistor leads. Normal reading is within 4.7 to 6.2 kΩ. If outside
the normal range, replace the thermistor. See "V.B. Important Notes for Component
Replacement." If within the normal range, continue to the next step.
6) Replace the thermistor in its correct position. See "V.B. Important Notes for Component
Replacement."
7) Reconnect the white thermistor connector to CB K3 (white) connector.
8) Replace the control box cover in its correct position.
9) Plug the icemaker back into the mains socket, then move the control switch to the "ICE"
position. Replace the front panel in its correct position.
10) Once the harvest cycle starts (Comp energizes), begin timing the harvest cycle.
11) The harvest timer and harvest cycle should terminate within 2 to 5 minutes. If the
harvest cycle does not terminate within 2 to 5 minutes, replace CB.
Legend:
CB
–control board;
Comp
–compressor
