Troubleshooting Guide
The following procedures must be performed by a qualified service technician.
Problem/Possible Cause | Service Check | Remedy |
Consistent filling of water tank |
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• Leaking fill solenoid valve | • Removing power to machine does not | • |
| stop tank fill |
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• Electrode lined up or faulty | • Jumper from C to high on probe side of | • Clean electrode rods. Check |
| board shuts fill off | rods & wiring; replace if |
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| necessary |
• Faulty white common | • Jumper from COM on probe side of | • Tighten, clean, replace COM |
connection to ground | board to ground stops fill | connection to ground |
• Liquid level control faulty | • Jumper from High to COM on probe | • Replace liquid level control |
| side of liquid level does not shut fill Off |
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Water not heating up |
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• Thermostat Off | • Visual | • Turn thermostat sleeve clockwise |
• Thermostat faulty | • Thermostat contacts do not close with | • Replace thermostat |
| sleeve clockwise and inner screw |
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| counter clockwise |
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• Power relay faulty | • No voltage to heating element - 120V. | • Replace power relay |
| across coil of relay does not pull in |
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• Heating element faulty | • 120V across heating element but no | • Replace heating element |
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Nothing dispensed - water or |
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chocolate - No whipper action |
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• Dispense switch faulty | • Switch reads open with ohmeter when | • Replace switch |
| switch is pushed |
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No water dispensed or whipper |
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action - Only chocolate is dispensed |
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• Water switch faulty | • Switch reads open with ohmeter when | • Replace switch |
| switch is in On position |
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No water dispensed - Whipper |
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works and chocolate is dispensed |
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• Tank refill problem | • Check auto refill system | • |
• Kinked silicone tubing | • Check tubing run to mixer assembly | • Reroute |
• Dispense valve faulty | • 120V across input terminals on valve- | • Replace coil or entire valve |
| no actuation |
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No whipper action - only water |
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and chocolate are dispensed |
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• Whipper motor faulty | • 120V across motor leads but motor | • Replace whipper motor |
| does not run |
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No chocolate dispensed - Whipper |
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works and some water is |
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dispensed |
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• No syrup to pump | • Check syrup container | • Replenish syrup supply |
• Kinked pump tubing | • Check tubing runs | • Unkink, reroute, replace |
• Syrup pump faulty | • 120V across pump motor leads, pump | • Replace syrup |
| does not run; check for jammed rollers | rollers |
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Constant dispense - chocolate, |
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water and whipper action |
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• Dispense switch faulty | • Switch reads closed with ohmeter with | • Replace switch |
| switch in the Off position |
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Constant water dispense or drip | • Dispense or drip continues with | • Clean, rebuild; replace |
• Dispense valve faulty | power Off | dispense valve |
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Crathco® Whipped Hot Chocolate Dispensers | Page 6 |
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