TROUBLESHOOTING (cont.) |
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HEATING CIRCUIT (cont.) |
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PROBLEM |
| PROBABLE CAUSE |
| REMEDY |
Spitting or excessive steaming | 1. Lime build up on temperature | Inspect probe and tank assembly | ||
(cont.) | probe, tank or tank heater | 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). Con- |
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| nect an ohmmeter to pins 3 and 4 of |
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| the J3 connector. At 60°F(16°C) the |
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| reading should be 15.3k ±2k OHMS, |
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| at 70°F(21°C) the reading should |
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| be 11.8k ± 2k OHMS, and at |
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| 80°F(27°C) the reading should be |
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| 9.3k ± 2k OHMS. If the probe is |
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| within these parameters, reconnect |
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| the J3 plug to the control board. |
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| 3. Control Board | Set the temperature to 200°F(93°C). | |
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| Let tank temperature stabilize. If |
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| temperature in tank is above tem- |
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| perature setting by more than 7°F, |
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| replace the control board. (See page |
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| 22) |
Brewer is making unusual noises | 1. Plumbing lines | Plumbing lines should not rest on | ||
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| the counter top. |
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| 2. Water supply | The brewer must be connected to a | |
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| cold water supply. |
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| 3. Lime build up | Remove the tank lid and clean in- | |
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| side of tank with a deliming agent, if |
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| necessary. |
Page 15 | 29707.1 082803 |
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