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If your heating has suddenly stopped working and your Hive app shows “No signal” or “offline,” it usually means your Hive thermostat has lost connection to the boiler. This can happen due to pairing issues, Wi-Fi problems, or a power cut.
Whether your Hive thermostat signal is lost or Hive is not working with the boiler properly, in this guide, we’ll explain how to reconnect your Hive to a combi boiler and fix common pairing issues.
What is a Hive Thermostat?
The Hive thermostat is a smart heating controller that you can use to control your home’s temperature using an app, on the sofa, or miles away.
It’s designed to save you energy, reduce heating bills, and keep you cosy. Many people in the UK use Hive because it’s suitable for combi boilers and easy to install.
How does it work?
There are several models, including the Hive Thermostat Mini, but they work in roughly the same way: the thermostat connects to a Hive Receiver near your boiler wirelessly.
Which then turns your heating on or off according to your schedule or settings. You can adjust all of this from the Hive app or even by voice if it’s linked with Alexa or Google Assistant.
While, like any smart device, Hive thermostats sometimes fail, mainly connectivity. In case your Hive is not responding, seems to be offline, or your Hive thermostat has disconnected from the boiler, it’s probably a signal or installation fault that’s quite easy to fix.
The problem in most situations is due to Wi-Fi, battery, or pairing fault between the receiver and the thermostat.
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Causes of Hive Thermostat and Combi Boiler Disconnection
If your Hive thermostat is disconnected from the combi boiler, you may be left without hot water or heating. The most common causes are:
- Wi-Fi dropouts or shifts: Hive relies on an ongoing internet link. If your router has been updated or reset, it can disconnect the Hive Hub from the thermostat.
- Power cut or reset: There may have been a recent power cut, which may have reset the Hive Receiver or Hub, and they are out of sync now.
- Battery issues: The thermostat batteries may be dead or low, and this would stop the thermostat from being able to talk to the system.
- Receiver malfunction: If the boiler is not responding to Hive commands, the receiver may not have been paired correctly or may need to be reset.
How to Reconnect Hive Thermostat to Combi Boiler?
If your Hive thermostat is disconnected from the boiler, don’t worry, these Hive thermostat re-pairing instructions will help.
Below are step-by-step instructions about how to pair the Hive thermostat and boiler:
Hive Thermostat Re-Pairing Instructions Step-by-Step
Step 1: Turn off your boiler using the isolation switch or fuse spur (usually by the Hive Receiver). The receiver lights will all turn off.
Step 2: Press and hold down the back arrow and menu buttons together at the same time (on touch versions, press and hold down the icons). Hold until it shows: “Welcome, searching.”
Step 3: Remove one of the batteries from the thermostat.
Step 4: Resume the boiler. The receiver light will flash amber or pink, then solid green. If it’s flashing pink, proceed to step 5.
Step 5: Hold the central heating button on the receiver until it flashes pink. Release, then hold again until it double-flashes amber.
Step 6: Now, go to the Hive app:
- Press Menu > Install Devices
- Press Add another device > Go
Wait for the hub to start searching. Let it search until the receiver flashes once amber.
Step 7: Reinsert the battery into the thermostat. The display says “Welcome, searching” once more. When “searching” goes away, the receiver light should be solid green.
Step 8: Leave for 5 minutes, and then restart the Hive app. If you now see an inside temperature and no ‘offline’ message, devices are online again.
Step 9: Now, try turning your heating on. If the status and central heating lights on the receiver are green, you’re off and running!
Common Hive Combi Boiler Connection Issues
If your Hive install isn’t performing as it’s supposed to, don’t worry. There are plenty of users who face connectivity issues between the Hive thermostat, receiver, and boiler, particularly after Wi-Fi software updates, power outages, or even just basic software faults. Below are some of the most common issues and how to resolve them.
Hive Thermostat Not Connecting to Receiver
If your Hive thermostat will not connect to the receiver, then most probably it’s a lost signal. It might be due to a power cut, poor Wi-Fi, or battery problems.
Quick fix:
- Reset the thermostat: Unplug it from the wall, remove the batteries, hold for 10 seconds, put the batteries back in, and clip it back onto the wall.
- Restart receiver: Hold down the centre button (the one with the heating symbol) until the lights flash. Allow the green light to stop flashing.
Still not working?
Check the receiver light to be steady green (good) or flashing (bad). Also, switch off any local interference, such as Hive light bulbs or smart plugs. If this does not work, you might need to re-pair the devices or call Hive support.
Hive Hub Not Linking to Thermostat
At times, the Hive Hub disconnects from the thermostat altogether. Usually, after a router update or if there is any internet issue.
Try doing it step by step:
1. Check power & batteries
- Ensure that the hub is on and plugged in.
- Make sure that the thermostat is fresh and seated well.
- Ensure that your Wi-Fi is live and stable.
2. Reboot everything
- Unplug the Hive hub, wait 1 minute, and re-plug it in.
- Restart the thermostat (battery method).
- Restart the receiver by your boiler by turning it off and then back on.
3. Re-pair the system
- Follow the pairing instructions in the Hive app or user guide to re-pair your hub and thermostat.
4. Check Hive service status
- Visit Hive’s status page to check if there is a problem with all services.
Still stuck?
Try contacting Hive directly if all else doesn’t work.
Hive Hub Not Connecting to Receiver
If your Hive hub won’t connect to the receiver, don’t worry – it’s easy to resolve. Start by checking the status light on the receiver by your boiler. If it’s not green, the devices haven’t been paired properly.
What to do:
- Switch off the boiler at the isolation switch.
- Wait for 10 seconds and turn the boiler back on to restart the receiver.
- Press and hold the central heating button on the receiver until it flashes pink.
- Release and then press and hold until you see a double amber flash.
This will switch the receiver into pairing mode. Re-pair your thermostat and hub through the Hive app. Once you see a solid green light, the connection is re-established.
Hive Thermostat Flashing Orange
Your Hive thermostat is orange flashing – it’s attempting to connect with the hub or receiver, but something’s amiss. This is what various orange flashes could mean and how to solve them:
Flashing Orange on Hive Hub
Your hub is unable to connect to your internet or other Hive devices.
Solution:
- Wait 15–60 minutes – it might sort itself out.
- Check that the Ethernet cable is properly connected to your router.
- Restart the router.
- Update the Hive app.
Flashing Orange on Hive Receiver
The receiver is probably in pair mode or can’t communicate with the hub.
Solution:
- Turn the receiver off and back on.
- Double-check your cabling to your boiler.
- Attempt to re-pair via the Hive app or by manual means.
What to Do if Your Hive Thermostat Says 'No Signal'
Experiencing a ‘No Signal’ message or Hive thermostat signal lost in your app? That typically indicates your thermostat can’t communicate with the receiver. Here’s what to do to reconnect them:
Fix ‘No Signal’ on Hive Thermostat Step-by-Step
Step 1: Take the thermostat off the wall. Press the tab at the bottom (or carefully pull it off, depending on your model).
Step 2: Bring it to where your Hive Receiver is – typically where your boiler is.
Step 3: Remove the batteries, wait 5 seconds, and replace them. It will reboot the thermostat.
Step 4: Put the thermostat back onto the wall. You should find a “Reconnecting” screen.
Step 5: When it shows you an inside temperature, turn the heat up to try it. Turn the dial or press the arrow (on Mini) to increase the target temperature.
Step 6: If the heating kicks in, you’ll see ON on the screen (or a flame icon if using Hive Thermostat Mini).
Step 7: Check the receiver: if both status and central heating lights are green, you’ve fixed it!
How to Reconnect Hive to Wi-Fi and Boiler?
If your Hive thermostat isn’t responding, check that it’s still connected to both your Wi-Fi and boiler. Hive relies on a stable internet connection to work properly.
- Test your broadband: Try your internet on another device. If that’s fine, the problem must lie with Hive.
- Check the Hive Hub: Make sure it’s plugged into your router using the Ethernet cable and has three solid green lights. If not, remove it, leave it for 30 seconds, and replace it.
- Reposition the Hub: Bring it nearer your router or further from thick walls or interference.
- Check Hive service status: Check the Hive status from their page to determine if there are more general service problems.
- If the thermostat is offline: It might have lost its connection with the receiver. Try restarting the thermostat or Hive Mini reconnection procedures.
How to Troubleshoot Hive Combi Boiler Connection Issues
Let’s go through some basic Hive connection troubleshooting steps to get things up and running again.
Restart the Hive Receiver
The Hive Receiver is the little box that’s put beside your boiler. Press and hold the central heating button (often marked with a flame symbol) until the light begins to flash.
Let go, Within a couple of seconds, the light should be steady green. If not, try switching off the boiler for 10 seconds and restarting the receiver once more.
Check the Thermostat
If the thermostat is unresponsive or showing the wrong temperature, remove it from the wall and check the batteries. Replace them if needed and restart it by removing and reinserting the batteries.
Re-pair the Devices
At times, your Hive receiver and thermostat simply require reconnecting. Refer to the pairing process in the app, or press the back and menu buttons on the thermostat together to put the thermostat in pairing mode. You can then reconnect it via the Hive app or by manually resetting the receiver.
Check the Signal
Thick walls or extensive distance between the Hive Hub, thermostat, and receiver can compromise the signal. Attempt to move devices closer together, particularly while re-pairing.
Verify Boiler Power and Configuration
Ensure the boiler is enabled and hasn’t locked out or entered standby. You might need to reset the boiler itself in case the heating hasn’t responded to the reconnection of Hive.
These steps to troubleshoot a Hive connection resolve the majority of signal and pairing issues with combi boilers. If everything has been tried and it still doesn’t work, then perhaps it is time to call in a qualified heating engineer to inspect the installation.
How to Reset the Hive Thermostat?
Resetting your Hive thermostat is easy and only takes a minute. This process returns the thermostat to factory settings and can resolve connection or syncing problems. Simply follow these simple steps:
- Turn off your boiler by the isolation switch or fuse spur by the Hive Receiver.
- Take out one battery from the Hive thermostat.
- Press and hold down the “+” and “–” buttons on the thermostat simultaneously.
- Hold the buttons, then reinsert the battery.
- Continue to hold until the screen displays “FIND”. That indicates the reset is done.
- If your thermostat fails to reconnect automatically, place your Hive hub and receiver into pairing mode and reconnect according to the in-app instructions.
- Once you’ve reconnected, check the receiver – the status light will be solid green.
- Lastly, refresh the Hive app. If the thermostat is now online again, you’re ready to go!
This reboot will sort out the majority of pairing and offline problems – no engineer required.
Frequently Asked Questions
This might be due to batteries. Use 4 AA batteries in the Hive Thermostat or 4 AAA batteries in the Mini model. After replacement, re-wall or restand the thermostat. It should power back on and reconnect to the boiler automatically.
Restart your Hive Hub. Unplug it at the wall socket, wait 10 seconds, and plug it back in. Leave it 5–10 minutes to reboot. Check the Hive app – if your thermostat reestablishes the connection, the signal problem should be fixed.
Go back to the beginning: test your internet connection and battery levels. Ensure that the hub, receiver, and thermostat are all plugged in and switched on. Sometimes, it is as simple as these minor adjustments to make Hive function correctly once more.
