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AC error codes displayed

Error codes on the AC display point to a specific fault — but each brand has its own code system. Common codes share a general meaning, but precise diagnosis needs a technician with your model's service manual.

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Symptoms That Indicate AC error codes displayed

See if any of these signs match your device — each one increases the likelihood of this fault.

Technical Causes

These are the causes we encounter while repairing AC error codes displayed — ranked from most to least common.

  1. 01

    E1 (LG/Samsung): communication failure between indoor and outdoor units

  2. 02

    E2: indoor temperature sensor failed

  3. 03

    E3: evaporator coil sensor failed

  4. 04

    E4: compressor or inverter drive fault

  5. 05

    E5: compressor overcurrent

  6. 06

    F1/F2 (Carrier): outdoor PCB error

  7. 07

    P1/P4 (Sharp): voltage or phase issue

When to Stop and Call a Technician Immediately

Any of the following = a danger signal — call now and don't try to fix it yourself.

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This Fault Is Common In These Air Conditioners Types

Split سبليت
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Central مركزي
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Other Air Conditioners Faults

AC running but not cooling Medium AC leaking water Simple AC making unusual noise Medium AC remote not working Simple AC refrigerant recharge Technician Bad smell from AC Medium AC freezing up / ice on lines Technician Breaker trips when AC starts Technician

Need an Immediate Diagnosis for AC error codes displayed?

On-site diagnosis, clear pricing before any work, and a documented 6-month warranty.

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