SAS900MTK-0
A0
17
No Heat
1. Pilot light not lit.
2. System switch not set to Heat
3. Loose connection to thermostat or
system
4. Furnace Lockout Condition. Heat
may also be intermittent
5. Heating System Requires service
or thermostat requires
replacement.
Relight Pilot
Set System Switch to Heat and raise set point
above room temperature
Verify thermostat and system wires are
securely attached
Many furnaces have safety devices that shut
the system down when a lockout condition
occurs.
If the heat works intermittently, contact the
furnace manufacturer or local service person
for assistance.
Diagnostic: Set System Switch to Heat and
raise the Setpoint above room temperature.
Within a few seconds the thermostat should
make a soft click sound. This sound usually
indicates the thermostat is working 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 replacement. If the thermostat
clicks, contact the furnace manufacturer or a
service person to verify the heating system is
operating correctly.