Honeywell RTH8500 用户指南

Cleaning the screen

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1  Press 

 to lock the screen for cleaning. 

The screen will remain locked for 30 seconds 
so you can clean the screen without changing 
any settings.

2  After 30 seconds, press 

 to resume 

normal operation, or press 

 again if 

you require more time for cleaning.

Do not spray any liquid directly on the 

thermostat. Spray liquid onto a cloth, then use 
the damp cloth to clean the screen. Use water 
or household glass cleaner. Avoid abrasive 
cleansers.

Unregistering thermostat

If you remove the thermostat from your Total 

Connect Comfort website account (for example, 

you’re moving and leaving the thermostat behind), 

the message center will scroll UNREGISTERED 

FROM TOTAL CONNECT for 3 minutes.
After that, it will alternate displaying REGISTER AT 

TOTAL CONNECT, the MAC ID and the MAC CRC.

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Disconnecting Wi-Fi

If you disconnect the thermostat from your Wi-Fi 
network:
1  Enter system setup (see page 20).
2  Change setting 900 to 0 (see page 23).
The Message Center will display Wi-Fi 
DISCONNECTED for 1 minute. After that it will display 
Wi-Fi SETUP.
Re-connect to a Wi-Fi network by following the steps on page 11.

If you do not plan to control the thermostat remotely, you can remove the Wi-Fi SETUP 
message from the screen:
1  Enter system setup (see page 20).
2  Change setting 890 to 0 (see page 23). Wi-Fi SETUP will be removed from the 

screen. If you want to connect to the Wi-Fi network later, change setting 890 back to 1.

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