Troubleshooting - Duke Energy EnergyWise Business User Manual

Troubleshooting

Power Loss
The EnergyWise Business thermostat is designed to withstand a power loss without the need of a battery backup. The
thermostat responds to a power loss as follows:
• All thermostat settings and schedule programming are stored to permanent memory and retained throughout the power loss.
• The thermostat will return to the same system mode (Off/Heat/Cool/Aux) it was in prior to the power loss.
• A Permanent Hold will be maintained after a power loss.
• A Temporary Hold will be maintained after a power loss ONLY if still within the same program schedule time period.
Otherwise the thermostat will return to operating according to the Program Schedule.
• The thermostat is designed to maintain the clock for at least 24 hours without power. If power has been lost for more than
24 hours, the clock will return to a factory default time and will update with the next utility time sync.
• A Conservation Period will be maintained after a power loss if still within the same conservation period.
Common Problems: No Heat, No Cool or No Fan
Possible Cause
Blown fuse or tripped circuit breaker.
Furnace power switch set to OFF.
Furnace blower compartment door or panel is loose or not
properly installed.
No Heat or No Cool
Possible Cause
Thermostat may be in an EnergyWise Business
conservation period. "Event in Progress" will be displayed
on top line of home screen.
System switch is set to OFF.
Heat, Cool or Fan Runs Constantly
Possible Cause
Fan set to ON.
EnergyWise Business Wi-Fi Thermostat User's Manual
®
EnergyWise Business Portal
®
duke-energy.com/EWBportal
Corrective Action
Replace fuse or reset breaker.
Turn switch to ON.
Replace door panel in proper position to engage safety
interlock or door switch.
Corrective Action
Wait for the EnergyWise Business conservation period
to end.
Press the thermostat's SYSTEM button one or more times
to select HEAT or COOL (as appropriate).
Corrective Action
Change fan to AUTO.
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