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Hive thermostat not connecting?

A Hive thermostat that shows No Signal or goes offline in the app has usually just lost touch with the receiver. These steps, from Hive's own guides, reconnect it.

What the thermostat screen says

Message and meaningWhat to do
No SignalThe thermostat and receiver aren't communicating.Follow the reconnection steps below.3 Hive sources
Red battery symbolThe batteries need replacing.Fit new batteries (types below).4 Hive sources
LOW BATTS (Hive 1)The batteries are low.Fit two new AA batteries.2 Hive sources
CHG BATTS (Hive 1)The batteries have run flat and the thermostat has stopped working.Fit two new AA batteries.2 Hive sources
Frost protection iconFrost protection is switched on, so the heating will come on if your home gets very cold.Nothing. It's a reminder.2 Hive sources
No RF (Hive 1)The thermostat has lost contact with the rest of your Hive system and can't control the boiler.Follow the reconnection steps below.1 Hive source

Reconnect the thermostat

  1. Look at the receiver near your boiler. If it has no lights at all, check the boiler is switched on at its isolation switch and nothing has tripped in your fuse box. 3 Hive sources
  2. Lift the thermostat off its wall hooks and take it close to the receiver. 2 Hive sources
  3. Take the batteries out and put them straight back in. This restarts the thermostat. 2 Hive sources
  4. Turn the target temperature up above the room temperature, and check the receiver's status light and heating light go green. 3 Hive sources
  5. Wait five minutes, then refresh the Hive app. 2 Hive sources
  6. Still not connected? Re-pair the thermostat to the receiver. The steps depend on your model, see how to reset and re-pair Hive. 4 Hive sources

While it's not connected

See Hive hub lights and receiver lights.

Which batteries your thermostat takes

ThermostatBatteriesSources
Hive Thermostat (the current model, also called Active Heating 2 wireless)4 × AA3 Hive sources
Hive Thermostat Mini4 × AAA2 Hive sources
Hive wired thermostat3 × AA2 Hive sources
Hive 1 thermostat2 × AA2 Hive sources

Hive recommends good-quality alkaline batteries, not rechargeable ones. 1 Hive source

BoilerCodes is independent and not affiliated with Hive or British Gas. Everything here comes from Hive's own support articles and user guides, listed at the bottom.

Common questions

Why does my Hive thermostat say No Signal?

Hive says it means the thermostat and receiver aren't communicating. Take the thermostat to the receiver, take the batteries out and put them back, then check the receiver's lights go green.

Can I turn my heating on if Hive isn't connected?

Yes. Hive says you can switch the heating and hot water on and off with the buttons on the receiver near your boiler.

What batteries does a Hive thermostat take?

The current Hive Thermostat takes 4 AA batteries, the Thermostat Mini takes 4 AAA, the wired thermostat 3 AA and the Hive 1 thermostat 2 AA.

Sources