Honeywell T8024C Manuel D’Utilisation

15

69-1431

continued

Display does not come on.

•

Check if the thermostat is mounted and latched on  
the wallplate—mount and latch the thermostat on  
the wallplate.

•

Check if the circuit breaker is tripped—reset the  
circuit breaker.

•

Check if the fuse is blown—replace the fuse.  

•

Check if the switch at the equipment is in the Off
position—set to the On position.

Temperature settings do not
change (example: cannot set the
heating higher or the cooling
lower).

•

Check that the temperature setpoints are: between  
40 to 99

°

F (4 to 37

°

C).