Troubleshooting
The following pages are provided to help determine the cause of problems with operation of the brewers and to indicate the appropriate solution for the problems. For each problem, the possible causes should be checked in the order shown until the exact nature of the problem is determined.
The following procedures must be performed by a qualified service technician. Disconnect power to machine before servicing.
Error Messages
Problem | Possible Causes | Service Check | Remedy |
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ER1 | • Fill valve on for over | • Check system for | • Correct any leaks and reset |
| 6 min. (This occurs | water leaks. | controller. |
| during initial fill on some |
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| units – see Initial |
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ER2 | • Thermistor failure or | • Ensure that connector | • Secure connections and reset |
| loose connections in | is securely attached to | controller. If error reoccurs, |
| thermistor circuit. | controller and that | replace thermistor. |
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| thermistor is securely |
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| connected. |
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ER3 | • Thermistor is reading | • Check tank | • Replace thermistor. |
| out of range. | temperature. |
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ER4 | • No heat is detected | • See Heating Problems | • See Heating Problems |
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Filling Problems
Problem | Possible Causes | Service Check | Remedy |
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Overfilling water | • Fill valve not sealing | • Check to see if water | • Disassemble valve and clean |
tank when power | properly. | enters tank continuously | out debris. Valve may need to |
is Off |
| (usually at a slow rate). | be replaced. |
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Overfilling water | • High electrode coated | • Disconnect electrode | • Remove electrode assembly |
tank only when | with lime or faulty. | wire at quick connect | and clean the probes. If |
power is On |
| (brown wire). Connect a | problem is not corrected, |
| wire from the quick con- | replace electrode assembly. | |
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| nect to the cabinet body. |
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| If filling stops, this is the |
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| error cause. |
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| • Connection from | • Check to ensure | • Make connection to tank |
| control board to tank | connection (red | secure. |
| body faulty. | wire) is secure. |
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| • Control board is faulty. | • Secure connection from | • Replace control board. |
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| control board to metal |
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| enclosure does not |
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| stop filling. |
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Shuttle Brewers & Airpot/Shuttle Brewers | Page 17 |
