Troubleshooting - Duke Energy H?M Energy Manager Homeowner's Manual

Troubleshooting

Power Loss
The HōM™ Energy Manager 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 a HōM Energy Manager 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.
HōM™ Energy Manager Web-Programmable Thermostat Homeowner's Manual
HōM Energy Manager Portal
homenergymgr.com/portal/engagement
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 HōM Energy Manager 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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