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RTHL2510/RTHL2410
25 69-2580ES—01
Troubleshooting
SETUP WIRING ASSISTANCE TROUBLESHOOTING
If you have difficulty with your thermostat, please try
the following suggestions. Most problems can be cor-
rected quickly and easily.
Display is
blank
• Makesurefurnacedoorisclosed
securely.
• MakesurefreshAAAalkaline
batteries are correctly installed
(see page 7).
Heating or
cooling system
does not
respond
• SetSystemswitchtoHeat. Make
sure the temperature is set higher
than the Inside temperature.
• SetSystemswitchtoCool. Make
sure the temperature is set lower
than the Inside temperature.
• Checkcircuitbreakerandresetif
necessary.
• Makesureheating&coolingpower
switches are on.
• Makesurefurnacedoorissecurely
closed.
• Wait5minutesforthesystemto
respond.
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