Honeywell RTHL3550 Gebrauchs- und Pflegehandbuch PDF herunterladen (Seite 16)

Operating Manual

69-2583ES—01 14

In case of difficulty

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freshAAalkalinebatteriesarecorrectlyinstalled

(see page 12).

Temperature

settings do not

change

Make sure heating and cooling temperatures are set to acceptable ranges:

• Heat:40°to90°F(4.5°to32°C).

• Cool:50°to99°F(10°to37°C).

Heating or

cooling system

does not respond

• PressSYSTEM button to set system to Heat. Make sure the

temperature is set higher than the Inside temperature.

• PressSYSTEM button to set system to Cool. Make sure the

temperature is set lower than the Inside temperature.

• Checkcircuitbreakerandresetifnecessary.

• Makesurepowerswitchatheating&coolingsystemison.

• Makesurefurnacedoorisclosedsecurely.

• Wait5minutesforthesystemtorespond.

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Honeywell RTHL3550 Gebrauchs- und Pflegehandbuch Seite 16