CMA Dishmachines Warewash Troubleshooting Guide
Machine will not start
- Check main circuit breaker On/Off
- ON
- Check Normal/Off/Delime Switch
- Always set to normal
- Set to Normal position
- Check master power switch
- No voltage washer side
- Check door safety switch
- Check master power switch
- Check Normal/Off/Delime Switch
- OFF
- Reset quick disconnect
- Reset main breaker
- ON
Wash pump runs - timer will not cycle
- Check timer
- Timer stops but wash pump stays running
- Timer remains running
- Disconnect red wire(s) from start/fill switch
Dishwasher will not drain - drain bill not lifting
- Check drain switch operation
- Check micro switch in cam timer (drain)
- Check voltage to drain solenoid, drain valve, and drain pump
- No voltage
- Check drain micro switch
- Check wire connections
- Check drain micro switch
- Voltage
- Check orange to white
- No voltage
- Check voltage to drain solenoid, drain valve, and drain pump
- Check micro switch in cam timer (drain)
Drain will not close - drain ball will not fall
- Drain ball
- Check drain ball chain for kinks
- Check voltage to drain solenoid
- Check solenoid alignment and for build-up of metal dust or debris
- Check voltage to drain solenoid
- Check drain ball chain for kinks
- Drain valve
- Check drain spring
- Check drain valve motor
- Check for debris inside drain valve
- Check drain valve motor
- Check drain spring
Chemical pumps will not run
Machine will not fill with water - machine runs
- Check water supply at wall
- Check line strainer in ball valve (clean/remove debris)