TROUBLESHOOTING TIPS
SYMPTOM |
| ACTION TO TAKE |
Thermostat Dead | 1. | Check power to the thermostat |
| 2. | Check wiring diagrams |
SYMPTOM |
| ACTION TO TAKE |
Heat Or Cool Inoperative | 1. | Check for break in W or Y wire |
2.Allow minimum off time to pass
3.Check system options for correct settings
4.If arrow is blinking, wait until startup delay expires
5.Mode is Off (Select Heat, Cool, or Auto)
6.Remote system is overriding thermostat
| SYMPTOM |
| ACTION TO TAKE |
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| Control By Remote System | 1. | Check wires and connections to the section marked “Comm” | |
| Not Working | 2. | Check thermostat address setting | |
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| 3. | Check communications mode setting | |
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| 4. | Check setup of the remote system | |
Ensure that all setup items for the thermostat and the remote system are set to the proper
configurations for communication
| SYMPTOM |
| ACTION TO TAKE |
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| Temperature Reading | 1. | Allow 30 minutes for thermostat to adjust. |
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| Incorrect | 2. | Adjust calibration offset |
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3.Change setup option to display oF or oC
After installation, allow the thermostat up to 30 minutes for an accurate temperature reading
| SYMPTOM |
| ACTION TO TAKE |
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| Display Problem | 1. | Cycle power to the thermostat (R). |
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| Aux Heat On Too Often | 1. | Heat Pump is not able to meet load due to cold weather | |
2.Thermostat is in EM Heat mode – Set thermostat to Heat or Auto mode
In EM Heat mode, only the auxiliary heat is turned on
| SYMPTOM | ACTION TO TAKE |
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| Heat Pump Heats In Cool | 1. Reversing valve is connected to wrong terminal - move | |
| Mode & Cools In Heat Mode | wire from B to O or from O to B | |
The wires connecting the reversing valve may be reversed - (See Note 1 - Page 7)
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