Hive
Hive Smart Thermostats Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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Battery Critical
Thermostat shows 'Battery Critical' and may shut down intermittently
Severely low thermostat battery voltage
Boiler Error
Thermostat or app shows 'Boiler Error' and heating will not start despite demand
Boiler not responding to Hive call for heat
Comms Error
Thermostat shows 'Comms Error' or 'Communication Error' with receiver
Persistent communication failure between thermostat and receiver
Device Not Responding
App shows 'Device Not Responding' for the Hive thermostat
Intermittent or lost connectivity between hub and thermostat
Firmware Update Failed
Thermostat or app shows 'Firmware Update Failed' and device may behave erratically
Incomplete or corrupted firmware update
Frost Protect Only
Thermostat stuck in 'Frost Protect' mode and will not follow normal heating schedule
Thermostat locked in frost protection state
Heating Offline
App and thermostat show 'Heating Offline' and cannot turn heating on
Hive receiver offline or not responding to hub/thermostat
Holiday Mode Stuck
System remains in Holiday mode and ignores normal schedules
Mode state lock or app sync issue
Hot Water Offline
App shows 'Hot Water Offline' and hot water schedule cannot be controlled
Hive hot water receiver channel not responding
Low Battery
Thermostat displays 'Low Battery' or app warns of low thermostat battery
Thermostat battery voltage below operating threshold
No Hub
Thermostat displays 'No Hub' or app cannot find Hive Hub
Hive hub connectivity failure
No Power
Hive thermostat screen is completely blank and unresponsive
Thermostat power loss
No Signal
Thermostat display shows 'No Signal' and cannot control heating or hot water
Loss of RF communication between Hive thermostat and Hive receiver/hub
OpenTherm Error
System reports 'OpenTherm Error' or modulating control failure (for Hive models supporting OpenTherm)
OpenTherm communication fault between Hive receiver and boiler
Overheat Protect
Thermostat or app indicates 'Overheat Protect' and heating is disabled
Safety over-temperature protection triggered
RF Channel Conflict
Multiple Hive devices interfere, causing intermittent control and RF-related warnings
RF channel overlap or duplicate device IDs
Schedule Error
Thermostat or app shows 'Schedule Error' and heating does not follow programmed times
Corrupted schedule data or firmware bug
Sensor Error
Thermostat shows 'Sensor Error' or room temperature reading is replaced by dashes
Internal temperature sensor failure
Time Sync Error
Thermostat shows incorrect time or 'Time Sync Error', causing schedules to run at wrong times
Clock synchronization failure
Valve Error
App or thermostat reports 'Valve Error' and heating zones do not respond correctly
Motorised valve control fault
Zigbee Join Failed
New Hive thermostat or receiver cannot join the Hive network and shows join failure message
Zigbee network association failure
Symptom
Heating does not come on even though thermostat shows a heating demand
No heat output despite call for heat
Symptom
Heating stays on constantly even when thermostat is set low or off
Heating stuck on
Symptom
Hive app shows heating as ON but radiators remain cold
App state mismatch with actual heating output
Symptom
Hive thermostat backlight does not turn on or stays on permanently
Backlight control failure
Symptom
Hive thermostat cannot be added to the Hive account during setup
Provisioning or registration failure
Symptom
Hive thermostat cannot connect to Wi‑Fi directly (user expects Wi‑Fi but device uses hub)
Misunderstanding of connectivity architecture
Symptom
Hive thermostat cannot control hot water even though heating works correctly
Hot water control failure
Symptom
Hive thermostat display is very dim or completely unreadable, but device otherwise works
Display backlight or LCD failure
Symptom
Hive thermostat loses its schedule and reverts to default settings
Loss of stored schedule data
Symptom
Hive thermostat makes clicking noises frequently as heating cycles on and off rapidly
Short cycling of heating control
Symptom
Hive thermostat or receiver emits a buzzing or humming noise
Electrical noise from relay or transformer
Symptom
Hive thermostat or receiver feels unusually hot to the touch
Overheating of control electronics
Symptom
Hive thermostat randomly restarts or reboots during normal operation
Unexpected thermostat power cycling
Symptom
Hive thermostat shows condensation or moisture inside the display
Moisture ingress into thermostat housing
Symptom
Room temperature reading on Hive thermostat is clearly inaccurate (too high or too low)
Thermostat temperature miscalibration
Symptom
Thermostat buttons or touchscreen are unresponsive or slow to react
User interface input failure
Symptom
Thermostat frequently disconnects and reconnects, causing unreliable heating control
Intermittent RF/Zigbee connectivity
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| Battery Critical |
Thermostat shows 'Battery Critical' and may shut down intermittently
|
Severely low thermostat battery voltage | View Details |
| Boiler Error |
Thermostat or app shows 'Boiler Error' and heating will not start despite demand
|
Boiler not responding to Hive call for heat | View Details |
| Comms Error |
Thermostat shows 'Comms Error' or 'Communication Error' with receiver
|
Persistent communication failure between thermostat and receiver | View Details |
| Device Not Responding |
App shows 'Device Not Responding' for the Hive thermostat
|
Intermittent or lost connectivity between hub and thermostat | View Details |
| Firmware Update Failed |
Thermostat or app shows 'Firmware Update Failed' and device may behave erratically
|
Incomplete or corrupted firmware update | View Details |
| Frost Protect Only |
Thermostat stuck in 'Frost Protect' mode and will not follow normal heating schedule
|
Thermostat locked in frost protection state | View Details |
| Heating Offline |
App and thermostat show 'Heating Offline' and cannot turn heating on
|
Hive receiver offline or not responding to hub/thermostat | View Details |
| Holiday Mode Stuck |
System remains in Holiday mode and ignores normal schedules
|
Mode state lock or app sync issue | View Details |
| Hot Water Offline |
App shows 'Hot Water Offline' and hot water schedule cannot be controlled
|
Hive hot water receiver channel not responding | View Details |
| Low Battery |
Thermostat displays 'Low Battery' or app warns of low thermostat battery
|
Thermostat battery voltage below operating threshold | View Details |
| No Hub |
Thermostat displays 'No Hub' or app cannot find Hive Hub
|
Hive hub connectivity failure | View Details |
| No Power |
Hive thermostat screen is completely blank and unresponsive
|
Thermostat power loss | View Details |
| No Signal |
Thermostat display shows 'No Signal' and cannot control heating or hot water
|
Loss of RF communication between Hive thermostat and Hive receiver/hub | View Details |
| OpenTherm Error |
System reports 'OpenTherm Error' or modulating control failure (for Hive models supporting OpenTherm)
|
OpenTherm communication fault between Hive receiver and boiler | View Details |
| Overheat Protect |
Thermostat or app indicates 'Overheat Protect' and heating is disabled
|
Safety over-temperature protection triggered | View Details |
| RF Channel Conflict |
Multiple Hive devices interfere, causing intermittent control and RF-related warnings
|
RF channel overlap or duplicate device IDs | View Details |
| Schedule Error |
Thermostat or app shows 'Schedule Error' and heating does not follow programmed times
|
Corrupted schedule data or firmware bug | View Details |
| Sensor Error |
Thermostat shows 'Sensor Error' or room temperature reading is replaced by dashes
|
Internal temperature sensor failure | View Details |
| Time Sync Error |
Thermostat shows incorrect time or 'Time Sync Error', causing schedules to run at wrong times
|
Clock synchronization failure | View Details |
| Valve Error |
App or thermostat reports 'Valve Error' and heating zones do not respond correctly
|
Motorised valve control fault | View Details |
| Zigbee Join Failed |
New Hive thermostat or receiver cannot join the Hive network and shows join failure message
|
Zigbee network association failure | View Details |
| – |
Heating does not come on even though thermostat shows a heating demand
|
No heat output despite call for heat | View Details |
| – |
Heating stays on constantly even when thermostat is set low or off
|
Heating stuck on | View Details |
| – |
Hive app shows heating as ON but radiators remain cold
|
App state mismatch with actual heating output | View Details |
| – |
Hive thermostat backlight does not turn on or stays on permanently
|
Backlight control failure | View Details |
| – |
Hive thermostat cannot be added to the Hive account during setup
|
Provisioning or registration failure | View Details |
| – |
Hive thermostat cannot connect to Wi‑Fi directly (user expects Wi‑Fi but device uses hub)
|
Misunderstanding of connectivity architecture | View Details |
| – |
Hive thermostat cannot control hot water even though heating works correctly
|
Hot water control failure | View Details |
| – |
Hive thermostat display is very dim or completely unreadable, but device otherwise works
|
Display backlight or LCD failure | View Details |
| – |
Hive thermostat loses its schedule and reverts to default settings
|
Loss of stored schedule data | View Details |
| – |
Hive thermostat makes clicking noises frequently as heating cycles on and off rapidly
|
Short cycling of heating control | View Details |
| – |
Hive thermostat or receiver emits a buzzing or humming noise
|
Electrical noise from relay or transformer | View Details |
| – |
Hive thermostat or receiver feels unusually hot to the touch
|
Overheating of control electronics | View Details |
| – |
Hive thermostat randomly restarts or reboots during normal operation
|
Unexpected thermostat power cycling | View Details |
| – |
Hive thermostat shows condensation or moisture inside the display
|
Moisture ingress into thermostat housing | View Details |
| – |
Room temperature reading on Hive thermostat is clearly inaccurate (too high or too low)
|
Thermostat temperature miscalibration | View Details |
| – |
Thermostat buttons or touchscreen are unresponsive or slow to react
|
User interface input failure | View Details |
| – |
Thermostat frequently disconnects and reconnects, causing unreliable heating control
|
Intermittent RF/Zigbee connectivity | View Details |
No matching codes found
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