Fujitsu Waterstage 62 fault code
Fujitsu Waterstage heat pumps
What the Fujitsu Waterstage 62 fault code means, from the manufacturer's own service literature, and the UK models it applies to.
What it means
Outdoor unit main PCB error
Source: Fujitsu Waterstage Comfort D&T Manual DA_CF001EF, §Control System pp.03-2…03-4 (official-distributor mirrors) — numeric display codes with Fujitsu's own reset and runs-despite-error columns, plus the interface-card LED table
UK models this code applies to
Tap yours to open 62 on that machine.
62 on these comes from each model's own manual, which may not match the meaning above — tap yours to read it.
Now the harder half: proving what caused it
62 names a symptom, not a root cause. In the app, the same code opens a guided investigation: what to measure first, the expected values for your exact model, and an honest verdict — including “nothing in this machine is broken” when that's what the readings say.
Chase 62 on your machine →Free, no sign-up. We don't hold a chart for this code yet — pick the model for its manual section.
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Related codes
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- 30Flow sensor mixing circuit
- 32UART communications error
- 42Hydraulic unit heat exchanger thermistor error
- 63Inverter error
- 71Discharge thermistor error
- 72Compressor thermistor error
- 73Heat exchanger thermistor (outlet) error
- 74Outdoor thermistor error