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
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.
Wall-mounted10
E7 on these comes from each model's own manual, which may not match the meaning above — tap yours to read it.
Wall-mounted40
Floor-standing1
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 →Free, no sign-up. Pick the model: where we hold a chart for it, it takes you through one question at a time.
Or watch one get chased — free demo →Related codes
- E1Room temperature sensor failure
- E2Indoor heat-exchanger sensor failure
- E4Indoor EEPROM error
- E14Indoor DC fan motor fault
- F1IPM (power module) protection (outdoor LED1 × 2)
- F2Compressor over-current (outdoor LED1 × 3/24/25)
- F4Discharge temperature overheat protection (outdoor LED1 × 8)
- F12Outdoor EEPROM error (outdoor LED1 × 1)
- LED6Supply over/under-voltage
- LED9Outdoor DC fan motor fault