Section 6 | Electrical System |
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Diagnosing An Ice Machine That Will Not Run
QF400/QC700/QF800/QF2200/QF2300
!Warning
High (line) voltage is applied to the control board (terminals #55 and #56) at all times. Removing control board fuse or moving the toggle switch to OFF will not remove the power supplied to the control board.
QF2200/QF2300 - If the gearmotor is energized but no ice is produced, refer to “Diagnosing a Condensing Unit That Will Not Run”.
1.Verify primary voltage is supplied to ice machine and the fuse/circuit breaker is closed.
2.Verify control board fuse is okay. If any control board lights functions, the fuse is okay.
3.Verify the bin level control is connected to the control board and the bin level light is off.
4.Verify ICE/OFF/CLEAN toggle switch functions properly. Place the toggles switch in the ICE and CLEAN positions and check for energized components.
5.Verify low DC voltage is properly grounded. Loose DC wire connections may intermittently stop the ice machine.
6.Verify water is contacting the water level probes. The compressor (QF2300 liquid line solenoid valve) will not energize until water contacts the water level probes.
Be sure Steps
Diagnosing A Condensing Unit That Will Not Run
RFC2085/RFC2385
If the ice machine water pump is not energized refer to “Ice Machine Head Section Will Not Run”.
1.Verify primary voltage is supplied to ice machine condensing unit and the fuse/circuit breaker is closed.
2.Verify the
3.Verify line voltage is present at the contactor coil.
4.Verify the contactor contacts are closed and line voltage is present across all lines.
5.Refer to compressor diagnostics.
Part No. | Revised 8/2003 |
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