TROUBLESHOOTING (cont.) |
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PROBLEM |
| PROBABLE CAUSE |
| REMEDY |
No bypass water |
| 1. Bypass valve |
| Test the bypass valve. Refer to the |
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| test outputs procedures on page |
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| 40. | |
Spitting or unusual steaming from |
| 1. Lime buildup |
| Inspect the probe and tank assembly |
sprayhead or air vent. |
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| for excessive lime deposits. Delime |
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| as required. |
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| 2. Temperature probe |
| Remove the probe from the grom- |
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| met and submerge in a water bath |
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| of approximately 70°F (21°C). |
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| Connect an ohmmeter to the pins |
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| in the connector. At 60°F (16°C), |
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| the reading should be 15.3k ± 2k |
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| OHMS, at 70°F (21°C) the reading |
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| should be 11.8k ± 2k OHMS, and |
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| at 80°F (27°C) the reading should |
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| be 9.3k ± 2k OHMS. If the probe is |
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| within these parameters, reconnect |
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| to the control board. |
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| 3. Control Board |
| Remove power from the brewer. |
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| Connect a voltmeter across the |
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| tank heater. Reapply power to the |
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| brewer and refer to testing outputs |
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| on page 40. If the voltage measured |
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| when the tank heater is turned on |
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| is very low or zero, then substitute |
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| a control board know to be good |
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| working order. |
Page 53 | 40119 071107 |
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