Replace batteries once a year, or when you will be away for more than a month.
Most settings are stored in non-volatile (permanent) memory. Only the clock and the day must be set after you replace the batteries.
Set the System switch to Off before removing the batteries. Otherwise, the heating/cooling system could remain activated even when batteries are removed.
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 the circuit breaker and reset if necessary.
• Make sure the power switch at the heating & cooling system is on.
• Make sure the furnace door is closed securely.
• Make sure fresh AAA alkaline batteries are correctly installed.
The heating or cooling system does
not respond
• Set system switch to Heat. Make sure the temperature is set higher than the Inside temperature.
• Set system switch to Cool. Make sure the temperature is set lower than the Inside temperature.
• Wait 5 minutes for the system to respond.
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).
“Cool On” or “Heat On” is
flashing
• Compressor protection feature is engaged. Wait 5 minutes for the system to restart safely, without damage to
the compressor.
“Heat On” is not displayed • Set the System switch to Heat and set the temperature level above the current room temperature.
“Cool On” is not displayed • Set the System switch to Cool, and set the temperature level below the current room temperature.
For assistance with this product, please visit resideo.com or call Resideo Customer Care toll-free at 1-800-468-1502.
1-year limited warranty
Resideo warrants this product, excluding battery, to be free from defects in workmanship or materials, under normal use and service, for a period of one (1) year from
the date of first purchase by the original purchaser. If at any time during the warranty period the product is determined to be defective due to workmanship or materials,
Resideo shall repair or replace it (at Resideo’s option).
If the product is defective,
(i) return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or
(ii) call Resideo Customer Care at 1-800-468-1502. Customer Care will make the determination whether the product should be returned to the following address:
Resideo Return Goods, 1985 Douglas Dr. N., Golden Valley, MN 55422, or whether a replacement product can be sent to you.
This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Resideo that the defect was caused by damage that
occurred while the product was in the possession of a consumer.
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