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Troubleshooting
Symptom | Possible Cause | Correction Action |
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No Cool | 1. Cooling system |
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| requires service. |
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Heat, Cool or Fan | 1. Possible short in | Check each wire connection |
Runs Constantly | wiring. | to verify they are not shorted |
| 2. Possible short in | or touching together. No |
| thermostat. | bare wire should stick out |
| 3. Possible short in heat/ | from under terminal block. |
| cool/fan system. | Try resetting the thermostat |
| 4. FAN Switch set to Fan | as described above. If the |
| ON. | condition persists, the |
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| manufacturer of your system |
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| can instruct you on how to |
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| test the Heat/Cool system |
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| for correct operation. If the |
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| system operates correctly, |
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| replace the thermostat. |
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Displayed | 1. Thermostat display | The display can be adjusted |
Thermostat | setting | +/- 5 degrees. Adjust the |
Reading and | requires adjustment. | Temperature Display Adjust |
Thermometer |
| settings within Thermostat |
Disagree |
| Settings (see Main Menu |
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| options). |
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Furnace (Air | 1. The location of the | Adjust the Heat Cycle Rate |
Conditioner) | thermostat and/or | or Cool Cycle Rate in the |
Cycles Too Fast | the size of the Heat- | Advanced Installer Menu. |
or Too Slow | ing System may be |
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(narrow or wide | influencing the cycle |
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temperature | rate. |
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swing) |
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| 29 |
TROUBLESHOOTING