Honeywell T8635L Thermostat User Manual


 
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LED Indicators
Two light emitting diode (LED) indicators are located on the upper
right side of the thermostat. The LED indicators are clear until
lighted. When the right filter expiration LED indicator lights
(green), see the Filter Indication section; when the heat pump
check LED indicator lights (red), see the Troubleshooting section.
The Check LED indicates a failure detected with
the heat pump. Switch the thermostat to Em. Ht.
and contact your heat pump service company for
assistance. Heating with Em.Ht. may be more
expensive so act quickly.
The LED indicators light on all thermostats.
Remote OverrideTemperature Indicator
The thermostat can communicate with a variety of system
controllers. If the temperature was overridden remotely, a () is
displayed and “Temporary” flashes.
HEAT PUMP
ZONING
M13375
CHECK
(RED) LED
FILTER
(GREEN) LED
M17763
Mon
System
Fan
Heat
Auto
AM
Heat
Temporary