White Rodgers UP310 - Page 13

3. Furnace blower compartment door or panel loose or not properly installed
4. Loose connection to thermostat or system:
1. Replace fuse or reset breaker.
2. Turn switch to ON.
3. Replace door panel in proper position to engage safety interlock or door switch.
4. Tighten connections.
No Heat:
1. System not set to Heat
2. Loose connection to thermostat or system
3. Heating System requires service or thermostat requires replacement:
1. Set thermostat to Heat.
2. Verify thermostat and system wires are securely attached.
3. Diagnostic: Set System to Heat and raise the setpoint above room temperature.
Within five minutes the thermostat should make a soft click sound and “Heat On” should appear
on display.
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).
Heat, Cool or Fan Runs Constantly:
Possible short in wiring, thermostat, heat, cool or fan system:
Check each wire connection to verify they are not shorted or touching other wires. Try resetting the
thermostat. If the condition persists contact your HVAC service person.
Thermostat Display & Thermometer Disagree:
The location of the thermostat and/or the size of the Heating System may be influencing
the cycle rate:
Display can be adjusted +/-5°. See User Menu item 05:
Furnace (Air Conditioner) Cycles Too Fast or Slow (narrow or wide temperature swing).
The location of the thermostat and/or the size of the Heating System may be influencing
the cycle rate: