What the manual says
Manufacturer manualAUTOSTOP
From this model's manual
Verified against the Vokera/Vokera Compact A installation & service manual, page 6.
DIY fix possible
Check your room thermostat is turned up high enough to request heatEnsure your heating programmer is set to 'ON'Check if the boiler begins working once you turn on a hot water tap
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All 31 fault codes on the Compact A
Seeing a different code? Every code this model can display, in one place.
_CLA01A02A03A04A06A07A08A09A11A77ACOAdjFlame ONGreen 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 SolidHoursP blinkingPurge cycle mode activeRED LED BLINKSRED LED On every 0.5-secsRED LED SolidReset light illuminatedService operationTemporary faultYELLOW LED Solid