Room temperature sensor fault
What it means
On Haier split units, E1 commonly indicates a fault with the indoor room temperature sensor. The meaning can vary by model, so check the manual for your unit.
Symptoms3
- The unit does not hold the set temperature.
- It stops and shows the code.
- Intermittent operation for no clear reason.
Possible causes4
- Failed temperature sensor.
- Loose sensor plug.
- Corrosion or moisture at the connector.
- Indoor control board fault.
How to diagnose and fix3
- Cut power for two minutes, then restart.
- Have a technician test the sensor and reseat the plug.
- Replace the sensor if its reading is wrong.
Repair cost
In Saudi riyals; the highlighted part is the expected range for this fault.
The sensor is cheap; cost rises only if the board has failed.
Prices are rough estimates including the part and the technician’s fee, and vary with brand, model and part source.
Frequently asked questions
Is E1 the same on other brands?
No, each brand uses the code differently, so identify your brand first.
Can I replace the sensor myself?
Best left to a technician, since it means opening the unit and working near the control board.
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.
Report a mistake
Spotted something inaccurate? Tell us and we will review and correct it.
Report received — thank you
This is your private tracking link. It shows the status and our reply as soon as it is posted.
The link is saved in this browser only.