Troubleshooting Guide (continued)
Symptom | Possible Cause |
| Action |
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System on indicator | Heating/cooling equipment turns on | Wait a minute after seeing the flame or snowflake and then check | |
(flame=heat, | the fan when the equipment has | the registers. | |
snowflake=cool) is lit, but | reached the setpoint. |
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no warm or cool air is |
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coming from the |
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registers. |
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System on indicator reads | Filter expired. | Refer to the Filter Indication section. | |
Filter and backlight is |
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flashing. |
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Outdoor temperature not | Filter expired. | Press | twice for outdoor temperature when filter expiration |
displayed or is incorrect. |
| shows on display. | |
|
| Refer to the Filter Indication section. | |
| Installer did not activate this option. | Contact installer or service technician. | |
| Outdoor sensor is connected |
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| incorrectly. |
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| Pub. No. |
61 |