Error code
Viessmann ERV All models code gas050
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Meaning
Safety aquastats SHL1 Adjustable high limit aquastat 90°C (194°F) maximum setting SHL2 Fixed manual reset high limit aquastat set at 120°C (248°F) H Hot N Neutral G Ground Field supplied F PA Pump aquastat control with fixed settings Pump on at 40°C (104°F) Pump off at 33°C (91°F)
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Address of this page: https://www.remfixit.com/tr/viessmannerv/tum-modeller/gas050