2)Remove the front panel.
3)Slide out the control box.
4)Remove the plastic bag covering the thermistor connector, then disconnect the thermistor connector. If replacing the wash tank thermistor, disconnect the leads from the wash tank electrode. If replacing the booster tank thermistor, disconnect the closed end connectors for the booster tank water level float switch and the booster tank backup water level float switch.
5)Remove the tape or ties securing the thermistor leads, then pull out the thermistor from the wash tank or booster tank straight towards you.
6)Clean out all old sealant from inside the thermistor hole.
7)Route the wires from the new thermistor connector through the existing black plastic sleeve.
8)Apply the recommended sealant (KE4560RTV, Part Code
9)Use tape or ties to secure the thermistor leads in their correct position.
10)Reconnect the thermistor connector and the wash tank electrode leads or the booster tank water level float switch and booster tank backup water level float switch leads, then bag and tie them.
11)Replace the control box and the front panel in their correct positions.
NOTICE
Be careful not to damage the wiring when handling the control box.
I. Removal and Replacement of Control Board or Operation Board
When replacing a control board or operation board, follow the precautions below.
NOTICE
1.The control board and operation board are fragile; handle very carefully.
2.The control board and operation board contain integrated circuits, which are susceptible to failure due to static discharge. It is especially important to touch the metal part of the unit when handling or replacing the control board or operation board.
3.Do not touch the electronic devices on the control board or operation board or the back of the control board or operation board.
4.Do not change wiring and connections.
5.Always replace the whole control board or operation board assembly if it goes bad.
6.Do not short out power supply to test for voltage.
1.Control Board
1)Use the “ON/OFF” button on the operation panel to turn off the unit, then turn off the dishwasher and booster tank power supplies. Lockout/Tagout to prevent the power supplies from being turned back on inadvertently.
2)Remove the front panel and the control box cover.
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