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| SCCG50 & SCCP50 | |
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| Service Manual | |
Service Diagnosis |
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No Ice |
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Problem | Likely Cause | Probable Solution | |
No power to unit | Power disconnected | Check breaker or fuse. Reset or | |
replace, restart and check | |||
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No power to controller | Transformer open | Replace transformer | |
Shut down on maximum |
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water fill time - water light | Water shut off | Restore water supply | |
flashing |
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| Water leak | Check curtain, sump | |
| Dirty condenser | Clean condenser | |
| Restricted location, intake air too | Eliminate restriction, have machine | |
| hot or blocked | moved | |
| Evaporator thermistor not sensing | Check thermistor | |
| properly | ||
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Very long freeze cycle | Spray jets dirty | Remove spray platform and clean | |
spray jets | |||
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| Inlet water valve leaks through | Check inlet water valve | |
| during freeze | ||
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| Low on refrigerant | Check cube formation, | |
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| Check for bleed thru from / missing | |
| Connected to hot water | check valve in building water | |
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| supply | |
| Spray pump not pumping | Check pump motor | |
| Fan motor not turning | Check fan motor, check fan blade, | |
| check controller for voltage output | ||
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| Pump hose disconnected | Check hose | |
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| Add access valve, add refrigerant | |
| Very low on refrigerant | as a test. If unit makes ice, find and | |
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| correct leak. | |
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| Check compressor start | |
Cannot make ice |
| components, check PTCR | |
| Compressor not operating | resistance and temperature | |
| Check compressor voltage | ||
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| Check compressor windings | |
| Hot gas valve leaks through during | Check hot gas valve for hot outlet | |
| freeze | during freeze | |
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| Check compressor amp draw, if | |
| Compressor inefficient | low and all else is correct, change | |
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| compressor |
June 2008
Page 26
