Indoor Coil Temperature Sensor Error

Home Appliance Error Codes Haier Split AC

Can you still use it? With care until repaired

Who can fix it? Needs a technician

Typical repair time 30 minutes – 2 hours

Typical cost SAR 80 to 1,200

What it means

This code appears on Haier split air conditioners to indicate a fault in the indoor coil (evaporator) temperature sensor, usually an open circuit, a short or an implausible reading. This sensor protects the evaporator from freezing in cooling and controls the indoor fan in heating, so operation stops or is limited. Haier codes differ between series, so confirm the meaning in your unit manual before buying any part. The same code can mean something else on other brands.

Models covered: Haier split air conditioners; codes differ between Haier series, so confirm with the unit manual.

Symptoms3

Cooling stops while the indoor fan may keep running.
It may appear after the indoor unit was washed.
Ice may form on the evaporator before the code shows.

Possible causes5

Loose or corroded sensor connector on the indoor board.
Sensor (thermistor) failed from moisture or age.
Sensor pulled out of its pocket on the evaporator pipe after a wash or service.
Wire broken or poorly insulated somewhere along its length.
Faulty sensor circuit on the indoor board, which is relatively rare.

How to diagnose5

Read the code meaning in your unit manual to confirm it refers to this sensor on your series.
Switch off at the breaker for a few minutes and restart.
With the power off, the technician checks the sensor connector on the indoor board.
The technician measures the sensor resistance and compares it with the Haier table for the model at room temperature.
The technician substitutes a known-good sensor before blaming the board.

How to fix5

Clean and secure the connector.
Repair or replace the wire.
Fit a new sensor matching the model in its correct position.
Replace the indoor board if proven faulty.
Run the unit and confirm the code is gone and cooling is steady.

Repair cost

0–200

200–600

600–1,500

1,500+

In Saudi riyals; the highlighted part is the expected range for this fault.

The sensor and connector are usually cheap parts; the indoor board is what raises the cost if it needs replacing.

Prices are rough estimates including the part and the technician’s fee, and vary with brand, model and part source.
Prices last updated: September 2026

Frequently asked questions

Why did the code appear after a wash?

Water may have entered the sensor connector or the sensor slipped off the pipe. Let the unit dry and restart; if the code stays, call a technician.

What is the difference between E1 and E2 on Haier?

On common series E1 is the room air sensor and E2 is the evaporator pipe sensor, both in the indoor unit.

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This guide is for information only and does not replace an inspection by a qualified technician. If the fault involves brakes, steering, engine temperature, electrics or refrigerant, do not attempt the repair yourself.

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