Medium
05 on Vokera Linea

Your boiler has lost connection to its optional remote control unit, preventing it from receiving temperature commands.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Communication problem with optional remote control (RC05)

Shared across the Linea range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Check the batteries in the remote control unit and replace them if needed.Power cycle the boiler by turning it off and on again at the fused spur.Check that any wired connections between the remote control and boiler are secure.

Find a Gas Safe engineer
Search the official register →
Boiler cover options

Avoid the next call-out bill

A cover plan would handle faults like 05: no call-out fees, no surprise bills.

Approved partner
Domestic Appliance Guard
Unlimited call-outs, 24/7 helpline, no price-hike promise
Get a quote →

Affiliate links. We may earn a commission at no extra cost to you.

All 9 fault codes on the Linea

Seeing a different code? Every code this model can display, in one place.

0102030406070809

Related guides you might find useful

Thermostat not working

Change the batteries first, even if the screen still works.

Read →

Is boiler cover worth it?

Break-even maths on monthly cover.

Read →

When to replace your boiler

7 signs repair isn't worth it anymore.

Read →