Honeywell RTH6300B1005 Digital Programmable Thermostat

Set the time and day

Press SET DAY, then select current day

1. Press the SET CLOCK/DAY/SCHEDULE button, then press or to set the clock time.
2. Press the SET DAY button, then press or to select the day of the week.
3. Press DONE to save & exit.

Note: If the SET CLOCK/DAY/SCHEDULE option is not displayed, press DONE or RUN SCHEDULE.

Note: If the display flashes Set Clock, the thermostat will follow your settings for the weekday “Wake” time period until you reset the time and day

Press the FAN button to select Auto or On.

In “Auto” mode (the most commonly used setting), the fan runs only when the heating or cooling system is on. If set to “On,” the fan runs continuously. Use this setting for improved air circulation, or for more efficient air cleaning.

Press the SYSTEM button to select Heat, Cool or Off.

• Heat: Thermostat controls only the heating system.
• Cool: Thermostat controls only the cooling system.
• Off: Heating and cooling systems are off.

CAUTION: EQUIPMENT DAMAGE HAZARD. To prevent possible compressor damage, do not operate cooling system when outdoor temperature is below 50°F (10°C).

Set to the time you awaken and the temperature you want during the morning, until you leave for the day.

Set to the time you leave home and the temperature you want while you are away (usually an energy-saving level).

Set to the time you return home and the temperature you want during the evening, until bedtime.

Set to the time you go to bed and the temperature you want overnight (usually an energy-saving level).

1. Press SET CLOCK/DAY/SCHEDULE,then SET SCHEDULE.
2. Press or to set your weekday Wake time (Mon-Fri), then press NEXT.
3. Press or to set the temperature for this time period, then press NEXT.
4. Set time and temperature for the next time period (Leave). Repeat steps 2 and 3 for each weekday time period.
5. Press NEXT to set weekend time periods (Sat-Sun), then press DONE to save & exit.

Note: Make sure the thermostat is set to the system you want to program (Heat or Cool).

Note: You can press CANCEL PERIOD to eliminate unwanted time periods (except Wake).

Press to temporarily adjust temperature

Press to cancel temporary setting and resume program schedule Press to temporarily adjust temperature

Note: Make sure the thermostat is set to the system you want to control (heat or cool).

Press or to immediately adjust the temperature.This will temporarily override the temperature setting for the current time period.

The new temperature will be maintained only until the next programmed time period begins (see page 10). For example, if you want to turn up the heat early in the morning, it will automatically be lowered later, when you leave for the day.

To cancel the temporary setting at any time, press RUN SCHEDULE.

Press to permanently adjust temperature

Press to cancel “Hold” setting and resume program schedule Press to permanently adjust temperature Heat

Note: Make sure the thermostat is set to the system you want to control (heat or cool).

Press HOLD to permanently adjust the temperature.This will override the temperature settings for all time periods.

The “Hold” feature turns off the program schedule and allows you to adjust the thermostat manually, as needed.

Whatever temperature you set will be maintained 24 hours a day, until you manually change it, or press RUN SCHEDULE to cancel “Hold” and resume the programmed schedule.

This feature helps prevent damage to the compressor in your air conditioning or heat pump system.

Damage can occur if the compressor is re-started too soon after shutdown.This feature forces the compressor to wait for a few minutes before restarting.

During the wait time, the display will flash the message Cool On (or Heat On if you have a heat pump).When the safe wait time has elapsed, the message stops flashing and the compressor turns on.

Press down and pull to remove

Insert fresh AA alkaline batteries, then reinstall battery holder

Install fresh batteries immediately when the REPLACE BATTERY warning begins flashing.The warning flashes about two months before the batteries are depleted.

Even if the warning does not appear,you should replace batteries once a year,or before leaving home for more than a month.

If batteries are inserted within two minutes, the time and day will not have to be reset.All other settings are permanently stored in memory, and do not require battery power.

• Make sure fresh AA alkaline batteries are correctly installed (see page 15)

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).

Follow these steps to restore Energy Star default settings (see page 10):

1. Press SET CLOCK/DAY/SCHEDULE.
2. Press SET SCHEDULE.
3. Press DONE and NEXT at the same time for 4 seconds.

• 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.

• Compressor protection feature is engaged. Wait 5 minutes for the system to restart safely, without damage to the compressor (see page 14).

• If the above measures do not resolve the problem, check the In Case of Difficulty section in your thermostat Installation Guide.