Honeywell RTHL2510 User Manual
Page 21
Advertising
RTHL2510/RTHL2410
19 69-2579ES—01
If you have difficulty with your thermostat, please try the following suggestions.
Most problems can be corrected quickly and easily.
Display is blank
• Make sure furnace door is closed securely.
• Make sure fresh AAA alkaline batteries are correctly installed (see
page 17).
Heating or
cooling system
does not respond
• Set system switch to Heat (see page 7). Make sure the temperature is
set higher than the Inside temperature.
• Set system switch to Cool (see page 7). Make sure the temperature is
set lower than the Inside temperature.
• Wait 5 minutes for the system to respond.
In case of difficulty
Advertising