E7

Communication Error

Description

Communication error between the indoor and outdoor units.

Appliance Error Codes Details

Error Code
E7
Error Name
Communication Error
Appliance Type
air_conditioner
Brand
Haier
Severity
high

Additional Troubleshooting

1. Reset the air conditioner by turning off the power for a few minutes
2. Check the wiring between the indoor and outdoor units
3. Contact a service technician

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Verified by: Pavel Volkov
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Information verified against official sources

Official Sources

Official Manufacturer Service Manuals

Service manuals and technical documentation from appliance manufacturers

Original equipment manufacturers official documentation

Industry Standards Organizations

International standards for electrical appliances and error codes

International Electrotechnical Commission standards

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