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E1

E1 Error Code — Room temperature sensor fault

York · Air Conditioning

What does E1 mean?

The room temperature sensor is not functioning correctly. This can affect the accuracy of temperature readings and the unit's operation.

Common Causes

  • Faulty room temperature sensor
  • Loose wiring to the sensor
  • Interruption in the sensor signal

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure the unit is powered off.

  2. 2

    Check if the room temperature sensor wiring is securely connected.

  3. 3

    If the problem persists, contact an authorized service center.

Browse all codes in this manual (26)
Verified technical data. Last updated: April 2026

Related Faults

Abnormal heat in power supply cord and power plugAbnormal heat in power supply cord or plugAccidental pour of impurities or water into machine or remote controlLiquid or foreign objects inside the unit or remoteAir conditioner can not operate at allAir conditioner will not operate at all
Source: York Air Conditioning
Open Manual (Page 13)Search more codes in this manual