Most Hive problems come down to one of three links breaking: thermostat to receiver, receiver to hub, or hub to your Wi-Fi. The steps below follow Hive's own support articles, plus the boiler-side checks those pages skip.
How Hive talks to your boiler
A Hive heating setup has three parts. The receiver is the box wired in next to the boiler (or the hot water cylinder on a conventional system). It is the part that actually switches the boiler on and off. The thermostat is the battery-powered unit on the wall that reads the room temperature and tells the receiver when to call for heat. The hub plugs into your router and links both to the Hive app.
A single-channel receiver controls heating only (combi boilers); a dual-channel receiver controls heating and hot water (conventional boilers with a cylinder). Both use the same light patterns.
| What you see | Link that has probably dropped |
|---|---|
| Thermostat says "No Signal" | Thermostat to receiver |
| App says heating is offline, thermostat still works | Hub to Wi-Fi, or receiver to hub |
| Thermostat screen blank | Batteries flat |
| All receiver lights off | No power at the receiver or boiler |
| Everything connected but no heat | Boiler, schedule or settings |
Quick checks before you re-pair anything
- Hive service status. Hive's help article suggests checking status.hivehome.com for a known outage. If the service is down, the app will show offline even though nothing in your home is wrong.
- Wi-Fi and router. Hive names home Wi-Fi as the most common cause of connection trouble. A new router, a changed Wi-Fi password or a router left switched off will take the hub offline.
- Batteries. The wall thermostat runs on four AA batteries in its back plate. Hive says you should get a low battery alert, and the screen may stop working when they run down. Swapping them also restarts the thermostat, which often clears a dropped connection on its own.
- Hub placement. Check the hub has not been knocked over, moved or shut in a cupboard.
- Power to the boiler. If the receiver lights are all off, check the fused spur or isolation switch for the boiler is on. Our guide to a boiler with no power or a blank display covers this in more detail.
What the receiver lights mean
The status light on the receiver tells you more than anything else. Hive's support pages describe these patterns:
| Status light | What Hive says it means |
|---|---|
| Solid green | Connected to the hub and thermostat |
| Double flashing amber | Searching for the hub (pairing mode) |
| Single flashing amber | Hub found, ready for the thermostat |
| Single flashing pink or white | Looking for a thermostat to run without the app (standalone mode) |
| Solid amber | Pairing timed out |
| Red | Lost connection to the thermostat |
| No lights | No power, usually the boiler switched off at the isolation switch |
A red light is the one people search for most. Hive says it usually comes from weak signal or flat thermostat batteries. While it is red you can still switch the heating on and off with the buttons on the receiver, but the receiver cannot tell when the room is warm, so the boiler stays on until you switch it off yourself. Hive also notes that a thermostat routing its signal through Hive Light bulbs can drop offline; its fix is to switch those lights off at the wall, reseat the thermostat batteries and switch the lights back on once it reconnects.
Fixing "No Signal" and "Reconnecting"
- Take the thermostat off its wall plate and carry it to the receiver by the boiler.
- Remove the batteries and put them straight back in. The screen should show "Reconnecting".
- Hang it back up. Once the room temperature appears, turn the heating up (turn the dial clockwise, or press the up arrow on a Thermostat Mini).
- Check the receiver. The status and central heating lights should both be green.
If it is still red, Hive's next step is to switch the boiler off and on at the isolation switch or fused spur near the receiver, wait 10 minutes and check in the app that both devices show as connected. Restarting the hub at the wall socket takes 5 to 10 minutes to come back. If the receiver and thermostat are simply too far apart, Hive says you may need a signal booster.
Re-pairing the receiver and thermostat from scratch
A full re-pair wipes your heating and hot water schedules, so note them down first. Hive says to pair the receiver first, then the thermostat, and to take the thermostat batteries out before you start.
- Switch the boiler off at the isolation switch. The receiver lights go out. Switch it back on.
- Hold the central heating (flame) button on the receiver until the light flashes pink or white. Release, then hold it again until it double flashes amber.
- In the Hive app, add a device, choose Smart Heating and press start. The hub flashes amber while it searches.
- When the receiver light changes to a single amber flash, reset the thermostat using the method for your model (below) and put the batteries back.
- When the thermostat finishes searching, the receiver light turns green. Wait about 5 minutes, refresh the app and check the room temperature shows.
| Thermostat | Reset method in Hive's guide |
|---|---|
| Hive Thermostat (Hive 2) | Hold the back arrow and menu buttons until the "Factory Reset" countdown ends |
| Hive Thermostat Mini | Hold the left and middle buttons until the Hive symbol appears |
| Hive 1 | Hold + and minus while putting the battery in, keep holding until FIND appears |
The receiver stays in pairing mode for 40 minutes. If it has not paired by then the light goes solid amber, and you start again from step 1. If you have Hive radiator valves, they need linking to the heating zone again afterwards.
Schedules and the boiler switching on and off
If everything is connected but the heating comes on at the wrong times, check the schedule first: a re-pair wipes it, so the thermostat may be running a default one. Check holiday mode and boost have not been left on, and on a dual-channel receiver check that the hot water schedule is set separately from the heating.
A boiler that fires and stops every few minutes while Hive calls for heat is usually reaching its own heating temperature and switching off, not a Hive fault. A thermostat placed near a radiator or in direct sun can also switch the heating off early. Our guide to boiler temperature settings explains how the boiler's own dial fits with the thermostat.
When the problem is the boiler, or a job for someone else
Signs the boiler is at fault
If the receiver light is green and the central heating light is on, Hive has done its job and asked for heat. If the boiler then shows a fault code, has lost pressure or will not fire, the fault is in the boiler. See our guide to a boiler not responding to the thermostat for the next checks.
Who to contact
- Hive support at support.hivehome.com if the steps above do not get the receiver green, or the app will not find the hub.
- A qualified installer or electrician if the receiver has no power while the boiler does, or the receiver needs moving or rewiring.
- A Gas Safe registered engineer for any fault code, pressure problem or failure to light on the boiler itself.
The receiver is wired into the boiler's mains supply. Do not open it, swap it or rewire it yourself; that is work for a qualified installer or electrician. If you smell gas at any point, leave the boiler alone and call the National Gas Emergency Service on 0800 111 999.
For how room thermostats and boiler controls work together, see our main boiler thermostat guide.