Vokera Mynute 28E / 35E Fault codes & diagnostics

10 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.

System Natural GasLPG 28-35 kW 2003-2010 Discontinued
GC Number 41-094-30

Replaced by: Mynute HE

Download the Vokera Mynute 28E / 35E manual The official installation & service manual (PDF) — the exact document these fault codes were verified against. PDF

The fault code is already on your display

Note it down before pressing reset — resetting clears the code immediately. How to read fault codes →

Severity at a glance

Each cell = one fault code. Hover to identify.
10 High
Versions & GC numbers

Which version do you have?

The GC number on your boiler's data badge identifies the exact appliance and production years, as recorded in the UK Product Characteristics Database.

GC number Appliance (register name) Produced
41-094-30 Mynute 35e LPG 2003–2010
Just want the most common Vokera Mynute 28E / 35E faults?
The top 6 problems in plain English — with causes, DIY checks and repair costs.
Fault codes

All 10 documented codes

Tap any card for details

01

Your boiler is failing to light the gas flame, which means you have no heating or hot water until the system is reset or repaired.

High DIY-safe £100-280

What to check first

  1. Check if your gas supply is turned on at the meter
  2. Turn the mode selector switch to the 'OFF/RESET' position and then back to 'ON'
  3. Check if other gas appliances in your home are working correctly

Parts commonly replaced

  • Ignition Electrode
  • Gas Valve
  • Printed Circuit Board (PCB)

Related codes

Full explanation for 01
02

Your boiler has sensed that it is getting too hot and has shut itself down as a safety precaution.

High DIY-safe £90-180

What to check first

  1. Check that all radiator valves are fully open to allow water to flow.
  2. Wait for the boiler to cool down for at least 30 minutes.
  3. Turn the mode selector switch to the 'OFF/RESET' position and then back to 'ON'.

Parts commonly replaced

  • Overheat Thermostat
  • Circulation Pump
  • Limit Thermostat

Related codes

Full explanation for 02
03

Your boiler is having trouble venting exhaust gases or drawing in fresh air, which has caused it to stop working for safety reasons.

High Engineer only £120-250

Parts commonly replaced

  • Air Pressure Switch
  • Fan
  • Venturi Tube

Related codes

Full explanation for 03
04

Your boiler has stopped working because the water pressure is too low for it to run safely.

High DIY-safe £0-160

What to check first

  1. Locate the filling loop (usually a silver flexible hose) underneath your boiler.
  2. Slowly open the small valves on the hose until you hear water flowing.
  3. Watch the pressure gauge and close the valves once the needle reaches between 1.0 and 1.5 bar.

Parts commonly replaced

  • Water pressure switch
  • Expansion vessel recharge
  • Filling loop valve

Related codes

Full explanation for 04
05

Your boiler has detected a critical internal error that prevents it from starting up safely.

High Engineer only £120-250

Parts commonly replaced

  • PCB (Printed Circuit Board)
  • Wiring harness
  • Air pressure switch

Related codes

Full explanation for 05
06

Your boiler has detected an internal fault that is preventing it from operating, and it requires a professional service technician to diagnose and repair it safely.

High Engineer only £150-350

Parts commonly replaced

  • Printed Circuit Board (PCB)
  • DHW sensor
  • Wiring harness

Related codes

Full explanation for 06
07

Your boiler has detected a critical internal error that prevents it from operating safely, so it has shut down to protect itself.

High Engineer only £150-300

Parts commonly replaced

  • Main Printed Circuit Board (PCB)
  • Wiring harness

Related codes

Full explanation for 07
08

Your boiler has detected an internal fault that is preventing it from operating, and it requires a professional inspection to identify the specific issue.

High Engineer only £120-250

Parts commonly replaced

  • PCB
  • Wiring harness
  • Sensor

Related codes

Full explanation for 08
09

Your boiler has detected a critical internal error that prevents it from operating safely, so it has shut down to protect itself.

High Engineer only £120-250

Parts commonly replaced

  • Printed Circuit Board (PCB)
  • Wiring harness
  • Control sensor

Related codes

Full explanation for 09
L2

Your boiler has failed to ignite properly and has locked itself out for safety.

High DIY-safe £120-350

What to check first

  1. Check if your gas supply is turned on at the meter
  2. Turn the mode selector switch to the 'OFF/RESET' position and wait for a few seconds
  3. Turn the switch back to the 'ON' position to restart the ignition process

Parts commonly replaced

  • Ignition Electrode
  • Gas Valve
  • PCB (Printed Circuit Board)

Related codes

Full explanation for L2
Status & diagnostic codes

2 operating states & engineer diagnostics

Not faults — these are normal operating states. Tap to expand.

CO Diagnostic Your boiler has been manually set to a temporary test mode for a gas safety check and is not experiencing a functional fault. L1 Status Your boiler is currently waiting for a demand for heating or hot water and is not experiencing a fault.