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| Problem | Possible Cause | Service Check | Remedy |
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14 |
| A) Overfilling of water | 1) Fill solenoid valve | Visual. Water entering | Disassemble and clean out. May |
| tank when power is off. | leaking due to dirt or | tank continuously, and | require new plunger assembly. | |
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| scale holding valve | usually slowly. | Caution is advised to avoid damage |
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| open, or worn plunger |
| to valve. See valve instruction |
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| seat. |
| sheet. |
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| 2) Fill solenoid valve | Visual. | On valves without integral strainer: |
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| installed backwards. |
| Install so that port marked “IN” is |
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| connected to outside fresh water |
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| supply. |
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| On valves with integral strainer: |
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| Install so that arrow points in |
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| direction of tank, away from fresh |
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| water supply. |
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| B) Overfilling of water | 1) High electrode | Jumper from “HI” | Remove electrode assembly. Clean |
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| tank only when power | coated with scale, | terminal to metal | both electrodes. If still no remedy |
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| to unit is on. | or faulty. | enclosure stops fill. | and connections are good, replace |
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| assembly. |
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American |
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| 2) Missing or faulty com- | Jumper for “C” terminal | Make good secure connection. May |
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| mon connection for elec- | (next to XL) to metal | require cleaning or replacement. | |
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| trode circuit (“C” terminal | enclosure stops fill. |
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| to metal enclosure). |
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Metal |
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| 3) Fill valve connected | Visual. | Connect “BLACK” wire lead to “FILL” |
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| to “HEAT” terminal. |
| terminal. | |
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Ware |
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| 4) Dual Level printed | Jumper from “HI” to “C” | Replace Dual Level Control. |
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| circuit board faulty. | does not stop fill. |
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87710E |
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| C) Auto refill fails to | 1) No power at | Nothing operates on | unit, that machine’s circuit breaker is | |
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| Make sure main switch(es), fuse(s), | |||
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| fill water tank. | equipment. | machine. | circuit breaker(s), provide power to |
Coffee |
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| OK and power switch, if provided, is |
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| on. | |
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Urn |
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| 2) No water at | “Crack” fitting at water | Make sure all water supply line |
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| equipment | inlet for pressure check. | valves are open. | |
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IV) Trouble Shooting Auto Refill, Low Water Cutoff, and Dual Level Control System
