Instructions / Assembly

33
Symptom Possible Cause Corrective Action
No Heat (continued) 1. Heating system requires service
or raise thermostat requires
replacement.
Diagnostic: Set SYSTEM Switch to
HEAT and the setpoint above room
temperature. Within a few seconds
the thermostat should make a soft click
sound. This sound usually indicates the
thermostat is operating properly. If the
thermostat does not click, try the reset
operation listed above. If the thermostat
does not click after being reset contact
your heating and cooling service person
or place of purchase for a replacement.
If the thermostat clicks, contact the
furnace manufacturer or a service
person to verify the heating is operating
correctly.
No Cool 1. SYSTEM Switch not set to COOL.
2. Loose connection to thermostat or
system.
3. Cooling system requires service or
thermostat requires replacement.
Set SYSTEM Switch to COOL and
lower setpoint temperature below room
temperature. Verify thermostat and
system wires are securely attached.
Same procedure as diagnostic for No
Heat condition except set the thermostat
to COOL and lower the setpoint below
the room temperature. There may be
up to a ve minute delay before the
thermostat clicks in Cooling.