BoilerFaultCodesWhat the manual says
Manufacturer manualAt stand-by with no faults
From this model's manual
Verified against the Vokera/Vokera Compact He installation & service manual.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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 ON every 6-secs (GREEN LED): no call-out fees, no surprise bills.
Approved partner
Get a quote →
Domestic Appliance Guard
Unlimited call-outs, 24/7 helpline, no price-hike promise
Affiliate links. We may earn a commission at no extra cost to you.
All 36 fault codes on the Compact HE
Seeing a different code? Every code this model can display, in one place.
APS faultcondense pressure switchDHW NTC faultDHW thermistor faultfan/flue problemFault light is onFlashing 8-times a secondGreen Flashing every 6-secondsGreen LED Off, Red LED OffGreen LED Off, Red LED OnGREEN LED ON every 0.5-secsGREEN LED ON every 6-secsGreen LED On, Red LED OffGREEN LED Solidlimit thermostatlow water pressureON every 0.5-secsON every 0.5-secs (RED LED)ON every 0.5-secs (YELLOW LED)ON every 6-secsprimary NTC open/short circuitRed | On every 0.5 secondRED LED BLINKSRed LED illuminatedRED LED ON every 0.5-secsRED LED SolidRed On every 0.5 secondSolidSolid (RED LED)Solid (YELLOW LED)water pressure switchYellow | On every 0.5 secondYELLOW LED ON every 0.5-secsYELLOW LED SolidYellow On every 0.5 second