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Haier E7 fault code

Haier air conditioning

What the Haier E7 fault code means, from the manufacturer's own service literature, and the UK models it applies to.

What it means

Indoor ↔ outdoor communication failure (outdoor LED1 × 15)

No communication between the indoor and outdoor PCBs — check the interconnecting cable and both boards.

Safety: Safe isolation before opening terminal covers — mains present on the interconnect.

How to read it — indoor display + outdoor led1: Faults show as E/F codes on the indoor display; the outdoor PCB reports the same faults as LED1 flash counts — either surface lands you on the same code. (Haier service manual AS25PBAHRA (Pearl), §10 Service Diagnosis)

Source: Haier service manual AS25PBAHRA (Pearl) §10.3

UK models this code applies to

Tap yours to open E7 on that machine.

E7 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

E7 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 E7 on your machine →

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