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Symptom
Possible Cause
Corrective Action
No Heat (contd.)
3. (contd.) This sound indicates the thermostat is operating
properly.If the thermostat does not click, try the reset
operation listed below. 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 system is operating
correctly.
No Cool
1. System not set to Cool
2. Loose connection to thermostat
or system
3. Cooling System requires
service or thermostat requires
replacement
1. Set thermostat to Cool.
2. Verify thermostat and system wires are securely attached.
3. Diagnostic: Set System to Cool and lower setpoint below
room temperature. Same procedures 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 five minute delay before the thermostat clicks in
Cooling if the compressor lock-out option is selected in the
installer menu. (see INSTALLER MENU, item 50)
