How to Reset a Honeywell Thermostat?

Soft reset (fixes most glitches, keeps your schedule/settings)

1. On battery-powered models, remove the batteries for about 60 seconds, then reinsert them.
2. On hardwired models, turn off power at the circuit breaker for about a minute, then turn it back on.
3. Some models have a Reset option directly in the on-screen menu — check under Settings or Menu first, since this is often faster than pulling power.

Full factory reset (clears everything, including Wi-Fi setup)

1. Go to the thermostat's Menu.
2. Navigate to Settings (sometimes under an Installer or Advanced submenu, depending on the model).
3. Select Reset, then Factory Reset or Restore Factory Defaults.
4. Confirm. The thermostat returns to its out-of-box state, including losing any saved schedule and Wi-Fi network connection.

When each type is needed

• Soft reset: the screen is frozen, temperature readings seem stuck or wrong, or the schedule isn't following correctly.
• Factory reset: switching to a new Wi-Fi network or router, transferring the thermostat to a new home/owner, or re-linking it to a different Honeywell/Resideo app account.

After a factory reset on Wi-Fi (smart) models: the thermostat will need to be re-paired to the Honeywell Home (or Resideo) app from scratch, following the same setup process as a brand-new unit, since the factory reset erases the network credentials along with everything else.

Model variation note: the exact menu wording ("Reset," "Restore Defaults," "Factory Settings") and menu depth varies between Honeywell's classic manual models, Wi-Fi/smart models (like the T5, T6, or Lyric series), so checking the specific model's on-screen menu structure is the most reliable way to find the exact option if these general paths don't match exactly.

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