BoilerFaultCodesVokera 05 Fault Code
The Vokera 05 fault code means: your boiler has lost its connection with the external remote controller, meaning they are unable to talk to each other to manage your heating.. It appears on 13 Vokera models in our database.
Technical description: Appliance is connected to the optional remote control (RC05) and there is a communication problem.
What causes the Vokera 05 fault?
This fault occurs when the boiler's main internal computer loses its digital handshake with the wall-mounted remote control unit. The most common reason is a loose connection in the wiring between the two devices or a component failure within the remote control unit itself that stops it from sending or receiving signals. Without this vital link, the boiler cannot receive instructions on when to turn the heating on or off.
DIY fix possible
Check if the batteries in your RC05 remote control unit need replacingEnsure the remote control is within range of the boiler and has not been movedTurn the boiler power off and back on again to try and reset the connection
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Vokera models that show the 05 fault code
Click a model for the full fault code list and model-specific repair notes.
- Easi-Heat 25 Repair: £90-160
- Easi-Heat 29 Repair: £90-160
- Linea 24 Repair: £90-160
- Linea 28 Repair: £90-250
- Linea 7 Repair: £90-250
- Linea HE Repair: £90-160
- Linea Max Repair: £280-£450
- Linea Plus AG Repair: £100-280
- Mynute 28E / 35E Repair: £250-£450
- Synergy E Repair: £90-180
- Syntesi 25 Repair: £90-180
- Syntesi 29 Repair: £90-180
- Syntesi E Repair: £90-180
Source
Vokera 05 fault code information on this page is sourced and cross-checked against the official Vokera service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026