PRO 2000 Series
15
ENG
LISH
In case of difficulty
Screen is blank.
• Check circuit breaker and reset if necessary.
• Ensure the heating/cooling system is powered up.
• Ensure the furnace door is properly closed.
• Ensure two fresh AAA alkaline batteries are correctly installed.
Temperature settings cannot be
changed.
• The
System
switch is off.
• You are setting the temperature outside its allowable range:
• Heat: 40 °F to 90 °F (4.5 °C to 32 °C).
• Cool: 50 °F to 99 °F (10 °C to 37 °C).
Cool On
or
Heat On
is flashing.
• The compressor protection delay is underway. Wait for the delay
to end (maximum of 5 minutes).
HI
appears on the screen.
• The ambient (measured) temperature is above 122 °F (50 °C).
LO
appears on the screen.
• The ambient (measured) temperature is below 32 °F (0 °C).
E1
appears on the screen.
• The temperature sensor circuit is opened. Replace the thermostat.
E2
appears on the screen.
• The temperature sensor circuit is shorted. Replace the thermostat.
400-626-001-C (69-1969EFS-03 prog TH2110D_TH2210D user manual) USA.book Page 15 Tuesday, September 8, 2009 10:05 AM
