©
- 17 -
Publication Number: 630460324SER
TROUBLESHOOTING CHART - ICEMAKER NOT OPERATING
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NO POWER |
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| ICEMAKER RUNS BUT |
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| LOW WATER SAFETY |
| ICEMAKER OPERATING BUT |
| GEARMOTOR OVERLOAD | |||||
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| DOES NOT MAKE ICE |
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| SWITCH OPEN |
| SOFT ICE |
| TRIPPED | ||||
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| Remote condenser | Condenser fan running |
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Check electrical wiring in con | units only |
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| Check water level control | ||||||
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| but compressor not running |
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| and evaporator water tube | ||||||
trol box for loose connec |
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| Check bin switch |
| for lime build up restriction. | |||
tions. |
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| Check line voltage. |
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Check for failed service |
| Remote condenser |
| Check that water is turned on. |
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switch or relay. |
| not running. |
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| Check compressor winding | Check for restriction in water line. |
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Check power to machine. |
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| & components. |
| Check incoming water pressure | Yes | No |
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| (minimum 10 lbs.). | No | Yes | |||
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| Check water safety switch. |
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| Evaporator water tube |
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High pressure | Check electrical | Check power |
| may have an air bubble. |
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| Clean all related | Refer to guide | CAUTION | CLEAN | ||||
| Clear air bubble from |
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switch open or | wiring in control box | to condenser. |
| tube. |
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| drain lines. | to Good Ice in | Clear ice from | see | |||
cycling on and off. | for loose connections. |
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| High suction pressure | Low suction pressure | service manual. | evaporator and | instructions. | ||||
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| (30 lbs. or above). | (20 lbs. or below). |
| auger before re |
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| setting over |
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| load. |
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| Head | TXV not | Suction line | TXV bulb |
| Reset |
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| overload. |
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| Pressure | operating | not | lost charge. |
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| high. | properly. | insulated. |
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Discharge | Too much |
| Condenser | Condenser |
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king valve | in system. |
| refrigerant in |
| fan not | dirty or | Valve | Bulb | Bulb | Replace valve |
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partially |
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| system. |
| running. | restricted. |
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| stuck | loose. | uninsulated. |
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closed. |
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| evacuate and | Icemaker runs | Reset but | Will not | |||
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| open. |
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| recharge. |
| motor does | reset. |
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| Replace | Clean | Clean and |
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| not run. |
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| valve. | and | insulate. |
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Open | Evacuate and |
| Check electrical circuit |
| tighten. |
| IMPORTANT | Short run trips | Check | Overload | ||||
recharge system. |
| to fan motor. |
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| Icemaker runs when reset | again in 2 min | gearmotor | hot try | |||
valve | Clean condenser. |
| Check fan motor. |
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| but problem has not been | utes. Check gear | circuit. | again. | ||
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| found. | motor circuit. |
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| Continue checking for |
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Low pressure switch open |
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| overload as follows to |
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| guard against future |
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or cycling on and off. |
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| problems |
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| Will not | |
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| reset |
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| replace |
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| overload |
| Low on |
| Remote condenser | Plugged |
| Restricted | Plugged or | Icemaker |
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| refrigerant. | units only |
| liquid line | liquid line. | faulty TXV. | froze up. |
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| dryer. |
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| Check for |
| LAC not operating | Replace |
| Check for | Replace | Check if |
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| leaks. |
| properly (minimum | dryer. |
| kinks or | valve. | auger is |
| OVERLOAD GUIDE |
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| discharge pressure | Evacuate | damage to | Evacuate | turning. |
| ELECTRICAL |
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| 180 lbs.). |
| and |
| liquid line. | and |
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| High or low voltage weak power lines can cause overloads on icemaker restarts | |||
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| recharge |
| recharge |
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| High running current. Check motor circuits and start relay - Auger delay failed. | ||||
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| system. |
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| system. |
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| ICEMAKER |
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| Mechanical parts worn. Scored evaporator or auger. Worn thrust bearing. |
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| Ice maker not turning off. Failed ice level control. |
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| No |
| Over compression. Low water inlet temperature. Restriction in water line from |
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| reservoir. |
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| REFRIGERANT |
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| Replace LAC valve, |
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| Contaminated charge or bad compressor. |
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| Low charge or gas leak. |
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| evacuate and |
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| Low suction pressure. Improper expansion valve sensing bulb. Location or insulation | |||
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| recharge system. |
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| and/or defective expansion valve |
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Check drive on |
| Check gears in |
| Check if extruding | |||
gearmotor. |
| gearbox. |
| head is down in | |||
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| evaporator tube. | |
TROUBLESHOOTING
Continuous Flow Icemaker Service Manual
