White Rodgers UP310 Install Manual page 33

Symptom
Heat, Cool or Fan Runs Constantly.
Thermostat Display &
Thermometer Disagree
Furnace (Air Conditioner) Cycles Too
Fast or Slow (narrow or wide
temperature swing)
Possible Cause
Possible short in wiring, thermostat,
heat, cool or fan system
The location of the thermostat and/or
the size of the Heating System may be
influencing the cycle rate
The location of the thermostat and/or
the size of the Heating System may be
influencing the cycle rate
Corrective Action
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.
Display can be adjusted +/-5°.
See User Menu item 05
Digital thermostats provide precise con-
trol and cycle faster than older mechani-
cal models. The system turns on and off
more frequently, but runs for a shorter
time. If you would like to increase cycle
time, choose SLO for slow cycle in the
Installer menu. (Reference menu items
30, 32 & 35) If an acceptable cycle rate
is not achieved, contact your HVAC
service person.
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