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S.92 on Vaillant ecoTEC plus 630 VU 306/5-5 R6

Your boiler is currently running an automated self-test to check the flow and circulation of water inside the system.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Watercirculationvolume self-test: Theself-testforthewatercirculationvolumeisactivated.

From this model's manual
Verified against the Vaillant/Vaillant Ecotec Pro Ecotec Plus Regular installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Wait for a few minutes to see if the self-test completes and the boiler resumes normal operation.Check that your heating controls and thermostat are calling for heat.Ensure all radiator valves are fully open to allow proper water flow through the system.

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Related fault codes

S.90View →S.91View →

All 113 fault codes on the ecoTEC plus 630 VU 306/5-5 R6

Seeing a different code? Every code this model can display, in one place.

D.000F.00F.01F.02F.03F.10F.11F.12F.13F.20F.22F.23F.24F.25F.26F.27F.28F.29F.32F.42F.49F.52F.53F.54F.55F.56F.57F.61F.62F.63F.64F.65F.67F.68F.70F.71F.72F.73F.74F.75F.77F.78F.80F.81F.82F.83F.84F.85F.90F.91F.92F.93F.94P.00P.0P.01P.02P.06S.00S.01S.02S.03S.04S.05S.06S.07S.08S.10S.11S.13S.14S.15S.16S.17S.20S.21S.22S.23S.24S.25S.26S.27S.28S.30S.31S.32S.34S.39S.40S.41S.42S.46S.53S.54S.57S.58S.61S.62S.63S.76S.88S.93S.96S.97S.98S.99T.02T.03T.04T.05T.06T.08

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