CME1356R and CME1656R
Service Diagnosis: Diagnostic Light Analysis
Problem or Symptom | Possible Cause | Probable Correction | |
| Bin is full | Use some ice | |
| Bin thermostat is closed | Check thermostat | |
| Power is off, check | If all Lights are out, check power supply, | |
| Lights. | restore power if off | |
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| Transformer is open | If all Lights are out and there is power, check | |
Machine is off | transformer output for 24 vac | ||
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| Unit has been switched |
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| off or has finished a | Push and release Freeze button | |
| Clean cycle, Off Light is | ||
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| glowing |
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| Unit has Shut Down | Check for Refrigeration or Water Error | |
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| Check water Light, if the Light blinks 2 times | |
| Water supply inadequate | and repeats, check the water inlet valve for | |
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| proper water flow.** | |
Unit is off on a Water | Water pump malfunction | Check that pump hose is attached and if | |
pump is plugged in and working. | |||
Error |
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| Check float stem, reset machine. If it will not | ||
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| Water level sensor may | reset or gives another water error and | |
| have failed. | everything else is OK, replace the water level | |
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| sensor. | |
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| Low discharge or long | Check refrigeration Light. If the Light is | |
| glowing, there is a probable refrigeration | ||
| freeze cycle | ||
| problem - fan motor could have failed. | ||
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| Check refrigeration Light. If the Light blinks | |
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| once and repeats, look for a harvest problem. | |
| Harvest problem | where some cubes were sensed.** | |
| Check refrigeration Light. If the Light blinks | ||
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| two times and repeats, look for a harvest | |
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| problem. - no cubes sensed** | |
Unit is off on a |
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| Check refrigeration Light. If the Light blinks 3 | ||
Refrigeration Error |
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| times and then repeats, check for a reason for | ||
| High Discharge Temp | ||
| high discharge temperatures - fan motor hot | ||
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| ambient. | |
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| Unit does not go into | Push and release Off button. Push and | |
| release Freeze button. Check operation. | ||
| harvest - exceeds | ||
| Push cube size float down and check | ||
| maximum freeze time | ||
| operation. | ||
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| Exceeds maximum | Check for cause of long harvest cycle** | |
| harvest time | ||
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Unit runs and both | Temperature sensors out | Replace the temperature sensor set (water | |
Diagnostic lites are ON | of range | and discharge). | |
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Same, only 1 light on | Reservoir temp. wrong | Check water temp. and sensor. | |
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*Machine may be reset by pushing and releasing the Off button, then pushing and releasing the Freeze button. ** See following pages
May 2001
Page 31
