Troubleshooting – Honeywell RTH 3100C User Manual

Page 19

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RTH3100C

17

69-2340ES—01

Troubleshooting

SETUP

WIRING

ASSIST

ANCE

TROUBLESHOOTING

Troubleshooting

If you have difficulty with your thermostat, please try

the following suggestions.

Most problems can be corrected quickly and easily.

Display is blank • Check circuit breaker and reset if

necessary.

• Make sure power switch at heating

& cooling system is on.

• Make sure furnace door is closed

securely.

• Make sure fresh AA alkaline

batteries are correctly installed

(see page 7).

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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