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Accessing Inverter Fault Codes
These diagnostic checks are performed with the
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view the inverter service LED.
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checked and found to be tight, reapply power to the
dishwasher. Then enter Service Mode and initiate
the proper test to run the drain or circulation pump
motors. Look at the inverter service blink pattern,
which may indicate a fault.
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Inverter has detected house voltage below 103 VAC
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Inverter has detected house voltage below 132 VAC
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Check for a shorted Circulation motor:
Inverter connection J101 pin 4 white - pin 5 black - pin 6 red, 11 - 12
ohms.
Shorted or open, replace motor, check connectors, if OK, replace
inverter.
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Open TCO in Circulation Motor - check for continuity inverter connector
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Replace inverter if TCO is OK.
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is activated in service mode), check for:
1. Loose
connectors.
2. Motor** (if OK, replace inverter)
3.
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Communication error.
1. Check for 5 VDC at MB J711 pins 12 - 22 (AX-CW). If 5 VDC is not
measured - replace main board.
2. Check for 5 VDC at inverter pins 1 - 3 (CW - AX). If 5 VDC is
measured, replace inverter. If 5 VDC is not measured, replace the
DC harness. If 5 VDC is measured the Inverter is powered with no
communication between MB and inverter, replace MB.
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Relay fault in inverter = replace inverter.
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