Daikin Altherma 7H subcodes: identify the failed flow check

What Does Error 7H Mean?

On the documented Daikin Altherma 3 R MT, 7H is incomplete without its suffix. 7H-01 is a general water-flow problem; 7H-04 relates to domestic hot water, 7H-05 to heating or sampling, 7H-06 to cooling or defrost, 7H-07 to pump deblocking, and 7H-08 to pump feedback. Applies to: Altherma 3 R MT with ELBH-E or ELBX-E and ERRA08-12 These subcodes belong to the ELBH-E and ELBX-E indoor units paired with ERRA08-12 equipment in the cited European installer reference. Other Altherma generations and monoblocs use different tables. Owner-safe checks: Capture the complete 7H suffix, both model labels, active mode, visible pressure, outdoor weather, pump sound, open zones, and recent hydraulic work. Qualified technician: Flow measurement, valves, filters, pumps, feedback, sensing, venting, configuration, electrical, and refrigerant work require an Altherma-qualified installer.