Troubleshooting Guide
Problem | Probable Cause | Remedy |
TWO OR MORE PUMPS | VRB Board mounting screw | Check the corresponding VRB board |
OPERATE WHEN ONLY | insulator is missing or | to the valve that is dispensing in |
ONE BUTTON IS PUSHED. | improperly installed. | error. Where the screw mounts the |
(Cont.) |
| transistor to the bracket, be sure that |
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| the spacer bushing is present and the |
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| screw is not over tightened. Screw |
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| contact with the bracket will cause a |
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| short and the firing of the valve when |
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| other valves are energized. |
WITH POWER PRESENT | Refrigeration shut off switch | Refrigeration shut off switch is |
DISPENSER WILL NOT | is in the off position. | located on the top of the dispenser. |
COOL |
| This switch will disable the |
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| compressor and condenser fan motor. |
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| Be sure the switch is in the on |
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| position. |
Drink temperature should be | Depleted ice bank (not | Remove rear bonnet covering the |
applicable after period of | refrigeration deck. CAUTION should | |
° | heavy usage.) | be observed when working in this |
| area as the dispenser is energized and | |
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| |
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| operational. Check to see if the |
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| compressor is running . If so allow |
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| the system to recover (approximately |
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| 1 hour). |
WITH POWER PRESENT | Loose or broken wire | Check the wire connections at the |
COMPRESSOR WILL NOT | connections. | compressor. Be sure they are tightly |
RUN. |
| secured. |
(Compressor shell is cold to |
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|
touch.) | Defective compressor start | Check the compressor start relay. |
| component. | Replace as required. |
| Ice bank control not connected | Check the ice bank control |
| or defective. | connections. To test, place jumper |
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| between the 2 leads. If the |
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| compressor starts ,the ice bank |
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| control is defective. |
COMPRESSOR RUNS BUT | Low refrigerant charge. | Contact a refrigeration service |
NO COOLING IS TAKING |
| technician. They will check for leaks |
PLACE. |
| (sign of oil at joints and fitting) and |
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| will recharge if necessary. |
| Refrigerant restriction. | Refrigeration technician will examine |
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| the system for, kinks in lines, |
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| restrictions, etc. Heat exchanger may |
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| need to be replaced. |
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