Common problems guide

The most common Vokera Easi-Heat Plus problems

The faults most likely to send a Vokera Easi-Heat Plus into lockout — with plain-English causes, what to check first, estimated repair costs and whether you need a Gas Safe engineer.

4 documented codes
4 most common
2 DIY-safe checks
2 engineer needed

The 4 most common faults

01
Alarm system water pressure High DIY-safe

Your boiler has detected that the water pressure inside your heating system is too low to operate correctly.

What to try first

Locate the filling loop (a flexible silver hose) underneath the boilerSlowly turn the small valve(s) to allow mains water into the systemMonitor the pressure gauge until the needle is between 1.0 and 1.5 barClose the valve(s) tightly to stop the flow

Est. cost
£80-150
Parts
Filling loop, Pressure relief valve, Pressure sensor
Full guide for Alarm system water pressure
02
Alarm high limit thermostat High Engineer

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

Est. cost
£150-300
Parts
High limit thermostat, Pump, Diverter valve
Full guide for Alarm high limit thermostat
03
Fault sensors High Engineer

Your boiler's temperature sensors are giving conflicting or invalid readings, so it has stopped working to prevent potential damage.

Est. cost
£120-200
Parts
NTC sensor, Wiring harness
Full guide for Fault sensors
04
Temporary fault Low DIY-safe

Your boiler has detected a brief hiccup in its internal systems and is pausing operation to protect itself.

What to try first

Locate the reset button or dial on the front of the boiler display panelPress and hold the reset button for 3 to 5 secondsWait a few minutes to see if the boiler resumes normal operation

Full guide for Temporary fault
Parts most often replaced

on the Vokera Easi-Heat Plus

Filling loopPressure relief valvePressure sensorHigh limit thermostatPumpDiverter valve

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
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See the full 4-code list for the Vokera Easi-Heat Plus

Related guides

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