Comfort, handled — quietly.
The Lumen Mini learns your week and keeps your home comfortable without you thinking about it. This guide takes you from the box to a working schedule in about fifteen calm minutes. You don't need any tools, and you can't break anything — every step is undoable.
Always switch off power at the breaker before touching thermostat wiring. If you see thick high-voltage wires or a label over 30 volts, stop and call an electrician — the Mini is for low-voltage systems only.
Add a “Leaving” moment set a few degrees cooler. Most people never feel it, and it's where the Mini quietly saves the most.
Turn on Eco and the Mini widens its comfort range by a degree or two when you're away — invisible day to day, noticeable on the bill.
The Mini starts a little early so your home reaches the right temperature exactly when your schedule says — not a wasteful blast right before.
Each month the app shows where your energy went and one gentle suggestion. Follow it or don't — the Mini never nags.
Savings depend on your home and habits, so give the Mini a few weeks. Auto-Learn keeps improving its estimates the longer it runs.
Most issues clear on their own within a minute. If one of these sounds familiar, try the fix first — you almost never need to call.
| What you're seeing | Try this |
|---|---|
| The ring is dark | Check the breaker for the heating/cooling system is on, then re-seat the Mini on its baseplate until it clicks. |
| Won't join Wi-Fi | Confirm it's a 2.4 GHz network and the password is right. Move your phone close to the Mini while pairing. |
| Home feels too cool | Open Schedule and check the moment for right now — an “Away” block may still be active. Nudge the ring to override until the next change. |
| App can't find the Mini | Make sure your phone is on the same Wi-Fi, then pull down to refresh the devices list. Restart the app if needed. |
| Want a clean slate | Hold the ring for ten seconds until it blinks twice to factory-reset, then start again from Step 3. |
Real people, not a phone tree. Reach out any day and we'll walk you through it.