Haier Air Conditioner Error F24

⚡ Quick Answer: The Haier air conditioner error code F24 indicates a communication failure between the indoor and outdoor units, which may result in the display flash... ⚠️ Difficulty Varies

What Does Error F24 Mean?

The Haier air conditioner error code F24 indicates a communication failure between the indoor and outdoor units, which may result in the display flashing or the unit becoming unresponsive. This issue may be due to a possible open circuit in the current transformer or a fault in the temperature sensor circuit. It's essential to address this promptly to ensure your air conditioning system functions effectively.

Common Symptoms:

  • Error code F24 displayed on indoor unit display

Possible Causes

  • Possible current transformer (CT) circuit open/connection fault (low)
  • Possible compressor/exhaust/temperature sensor circuit fault (low)

How to Fix Error F24

DIY Fix Basic checks before service

  1. Turn off power to the unit (using remote and breaker).
  2. Wait ~10 minutes and restart to see if the code clears.
  3. Ensure filters are clean and airflow is not blocked.

Technician Only Technician diagnostic and repair

  1. Inspect and test current transformer and related wiring for continuity.
  2. Check compressor discharge/exhaust temperature sensor and wiring.
  3. Use HVAC diagnostic tools to read sensor values and control board signals.
  4. Repair or replace faulty sensor, CT, or associated wiring as needed.

Parts needed: current transformer/sensor, temperature sensor(s), wiring harness

🛑 When to Call a Pro:
  • If the error persists after basic power reset and cleaning filters
  • If unfamiliar with HVAC electrical diagnostics or internal wiring

Next step

Choose the next step for F24

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Based on diagnostic data

Most relevant component to inspect

Temperature Sensor

Monitors the internal temperature to ensure correct operation and prevent overheating.

Typical part-only price
$15 - $35
DIY difficulty
Easy
Estimated time
15-30 mins
Where can I find the model number?

Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

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Technical Specifications

wattage 2000W
component Control Board
resistance 10-20 ohms
part_number HAIER-123456
voltage_rating 220V AC

Common Questions

What does F24 error mean on haier air conditioner?

F24 indicates a communication failure between indoor and outdoor units, often causing unresponsiveness.

Can I fix haier air conditioner F24 error myself?

Yes, try resetting the unit and cleaning filters. Turn off power, wait 10 minutes, then restart.

How much does it cost to fix F24 error?

Repair costs vary by region but are generally moderate, including parts and labor.

When should I call a technician for F24?

Call a technician if the error persists after basic resets or if you're unfamiliar with HVAC diagnostics.

Data last verified: 2026-07-25

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