Heat pumps
Air-to-water heat-pump codes with manufacturer-scoped diagnostic decisions.
199 published entries
Published error entries
7H-04Daikin Altherma 4 H F 7H-04: Water flow problem during domestic hot water productionHigh· Daikin7H-05Daikin Altherma 4 H F 7H-05: Flow abnormality during space heating operationHigh· Daikin7H-06Daikin Altherma 4 H F 7H-06: Abnormal flow during cooling operationHigh· Daikin7H-09Daikin Altherma 4 H F 7H-09: Abnormal flow during emitter defrostHigh· Daikin7H-10Daikin Altherma 4 H F 7H-10: Abnormal flow during tank defrostHigh· Daikin7H-11Daikin Altherma 4 H F 7H-11: Flow abnormality during 4-way valve in coolingHigh· Daikin7H-23Daikin Altherma 4 H F 7H-23: Main zone pump communication errorHigh· Daikin7H-24Daikin Altherma 4 H F 7H-24: Add. zone pump communication errorHigh· Daikin81-00Daikin Altherma 4 H F 81-00: Exit water temperature thermistor after BUH abnormalityHigh· Daikin81-05Daikin Altherma 4 H F 81-05: Loose hanging tank thermistorHigh· Daikin81-10Daikin Altherma 4 H F 81-10: Mixed water thermistor abnormality (mixing kit)High· Daikin89-01Daikin Altherma 4 H F 89-01: Heat exchanger freeze-up protection activated during defrost operationHigh· Daikin