Combi Heater Error Code W051C : warning code for bad communication Combi Heater Error Code November 27,2023 110 code: window open switch Combi Heater Error Code July 25,2023 31 code: Ignition failure Combi Heater Error Code June 29,2023 169 Code: abnormal power failure Combi Heater Error Code May 17,2023 220 Code: AC 220V no connection. JP Heater Combi Heater Error Code May 11,2023 1 CATEGORIES Combi Heater Error CodeCombi Heater Common ProblemsCombi Heater Switch Operation