TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
TROUBLESHOOTING (SEE TABLE 6)
Table 6. Troubleshooting.
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Symptom | Possible Cause | Action |
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Display does not come on. | Comfort control is not being | Check for 24 Vac between B and Rc. |
| powered. |
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Temperature settings do not | The upper or lower temperature | Check temperature setpoints. |
change. | limits were reached. | Check Installer Setup Numbers 0600 and |
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| 0610; modify as needed. |
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| The keypad is fully locked. | Check Installer Setup Number 0670 to |
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| change keypad locked options. |
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Heating or cooling does not come | Comfort control minimum off- | Wait up to five minutes for the system to |
on. | time is activated. | respond. |
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| System selection is not set to | Set system Selection to correct position. |
| Heat or Cool. |
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| System type Selection is | Check Installer Setup Number 0170 and |
| incorrect. | make sure correct System type is |
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| chosen. |
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Comfort control is calling for Heat | Heating or cooling equipment is | Check wiring. |
(Heat on) or Cool (Cool on) but no | not operating. | Check Installer Setup Number 0170 and |
heating or cooling is running. |
| make sure correct system type is chosen. |
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| Verify operation of equipment in System |
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| Test mode. |
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Comfort control does not respond | The keypad is locked. | Check Installer Setup Number 0670 to |
when touch areas are pressed. |
| change keypad locked options. |
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| Pub. No. |
19 |
