Fujitsu Waterstage fault codes
What each code means, in plain engineer English — and which UK models it applies to, taken from Fujitsu Waterstage's own service literature. Anyone can tell you what a code stands for; the model list is the part that took the manuals.
Fujitsu Waterstage heat pumps
30832124414424434445161123324262637172737477788486949597A1A3A5AC1/12/33/13/24/14/26/16/26/36/46/56/76/87/17/27/37/47/77/88/48/69/49/59/79/810/110/310/410/510/9cont. 1s/1scont. on / off1 flash2 flashes3 flashes4 flashes6 flashes7 flashes8 flashes9 flashes11 flashes12 flashes13 flashes14 flashes15 flashes16 flashes17 flashes18 flashes20 flashes23 flashes24 flashes
Knowing the code is the easy half
A code names a symptom, not a root cause. The app takes the same code and walks the fix: what to measure first, the expected values for your exact model, and a verdict that tells you when the machine isn't actually broken.
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