TROUBLESHOOTING (cont.) |
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Problem | Possible Cause | Troubleshooting Procedures |
Water flows into tank continuously with power applied to brewer.
1.Refill Probe or Sensitivity Set- ting
Check the sensitivity setting. Refer to the Refill function. If the left three digit number is less than the right number, the machine “thinks” it is full and the refill valve should be off. If the left number is larger than the right, then the refill valve will automatically be turned on to fill the tank. The right number is the threshold setting and can be adjusted to compensate for extreme water conditions: very pure, low conductance water requires a higher setting, while high mineral content, high conductance water requires a lower setting. Note that the left number changes from a high value when water is NOT touching the refill probe to a low value when water IS touching the probe. For best opera- tion, the right number should be set to a value midway between these low and high numbers. Before changing the setting, confirm that the refill probe is free of scale buildup and the connection to it is secure.
2. | Electronic Control Board |
Water will not heat or display shows 1. | Limit Thermostat |
HEATING TIME TOO LONG |
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CAUTION - Do not eliminate or bypass limit thermostat. Use only replacement part #23717.0001.
2. Tank Heaters
Substitute a control board known to be in good working order.
Remove power from the brewer. Press reset button on limit ther- mostat. Then check for continuity through it.
Remove power from the brewer. Check for continuity through the tank heaters.
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