Common problems guide

The most common Vokera Excell 80E / 96E problems

The faults most likely to send a Vokera Excell 80E / 96E into lockout — with plain-English causes, what to check first, estimated repair costs and whether you need a Gas Safe engineer.

This model is discontinued. Parts can be harder to source and expensive. If repair costs are mounting, a new A-rated boiler may be the smarter choice.
3 documented codes
3 most common
1 DIY-safe checks
2 engineer needed

The 3 most common faults

01
Lockout High DIY-safe

Your boiler has stopped working for safety reasons and needs to be manually restarted to see if it can clear the internal error.

What to try first

Turn the mode selector dial to the 'Reset' position.Hold it in the 'Reset' position for approximately 5 seconds.Turn the dial back to your preferred heating or hot water setting and wait 30 seconds to see if the burner ignites.

Est. cost
£100-250
Parts
Ignition electrode, Gas valve, Printed circuit board (PCB)
Full guide for Lockout
02
L-E.D. High Engineer

Your boiler has shut down and locked itself for safety, meaning it will not provide any heating or hot water until the fault is investigated.

Est. cost
£120-250
Parts
Ignition electrode, Ionisation probe, PCB
Full guide for L-E.D.
03
Overheat High Engineer

Your boiler has detected that it is getting dangerously hot and has automatically shut itself down to prevent damage.

Est. cost
£120-250
Parts
Pump, Plate heat exchanger, NTC thermistor
Full guide for Overheat
Parts most often replaced

on the Vokera Excell 80E / 96E

Ignition electrodeGas valvePrinted circuit board (PCB)Ionisation probePCBPump

Based on parts cited in our fault code database. Your engineer will confirm what's actually needed after diagnosis.

Call a Gas Safe engineer if…

  • You can smell gas or see signs of a leak
  • The Vokera shows an Emergency or High severity code
  • The boiler keeps locking out after repeated resets
  • You've tried the DIY checks and the fault hasn't cleared
  • There's visible water leaking from the boiler
  • The flame is yellow or orange instead of blue
See the full 3-code list for the Vokera Excell 80E / 96E

Related guides

Boiler losing pressure → No hot water → When to replace → Symptom checker →