39
Cooling system
will not turn on
1. Not in Cool mode
• Check cool indicator arrow on display. If off, move
temperature slide to the left and ensure thermostat
is not in setback mode.
2. Not calling for cool
• Move system switch to Cool
3. Bad compressor
contactor
• Check for voltage at compressor contactor - call
service person for repair.
OPERATING YOUR THERMOSTAT
OPERATING YOUR THERMOSTAT
------
PROBLEM
POSSIBLE
CAUSE
ACTION TO TAKE
IN MANUAL,
REFERENCE SECTION ...
Large
temperature
swing
1. Thermostat
location
• Relocate thermostat.
2. Differential switch
set to 3
°
F
• Move differential switch to 1
°
F.
CHECK YOUR THERMOSTAT'S
LOCATION
SETTING OPTION SWITCHES
On/off cycles
too short
1. Thermostat
location
• Relocate thermostat.
2. Differential switch
set to 1
°
F
• Move differential switch to 3
°
F.
3. Miscalibrated
• Thermostat is calibrated at factory at 70
°
F and should
need no further calibration - if calibration is needed,
call 800 number for assistance.
Frozen display
1. Static electricity
• Push reset button.
CHECK YOUR THERMOSTAT'S
LOCATION
SETTING OPTION SWITCHES
------
OPERATING YOUR THERMOSTAT
4. Blown fuse
• Check wiring. Replace fuse.
MAINTAINING YOUR THERMOSTAT