33
Troubleshooting
Symptom
Remedy
No display
Check for 24 VAC at thermostat; display is blank when 24 VAC is not present.
No response with first button press
Press
to activate touch icons.
Program schedule activates at wrong
time
Check time (AM/PM) set on thermostat (see Setting the Time & Date,).
Thermostat turns on/off too frequently
Adjust temperature differential (see Configuration Mode Setting).
Thermostat does not follow program
Verify the schedule is on
: check time (AM/PM); check if in program
override.
Fan runs continuously
Press
and set to auto
.
is continuous run.
Room temperature is not correct
Calibrate thermostat (see Configuration Mode Setting).
If remote sensor is used, check S1 and SC terminal connections.
LOCK displays when any button is
pressed
Thermostat has the button lockout function activated
(see Lockout & Unlock Feature).
on display instead of room
temperature
Check for a bad connection at the S1 and SC terminals, if used
(see Configuration Mode Setting).
Heat or Cool not coming on
Verify wiring is correct, gently pull on each wire to verify there is a good connection
at terminal block.
Remote Sensor
displays
Check remote sensor temperature at
, ,
MENU
VIEW
,
.
OVERRIDE displays
Program schedule is in temporary override, it will return to schedule at next
transition time.
