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ACL switch no fix

Abnormal condition on remote control display — Reset remote control using ACL switch

MHI · Air Conditioning

What does ACL switch no fix mean?

If the remote control display shows any abnormal condition that doesn't resolve with battery replacement or normal operation, a reset may be needed.

Common Causes

  • Software glitch or temporary error in the remote control.
  • Incorrect settings or corrupted memory.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Locate the ACL switch on the remote control (usually a small recessed button).

  2. 2

    Press the ACL switch with the tip of a ballpoint pen.

  3. 3

    Set the current time on the remote control after resetting.

Browse all codes in this manual (124)
Verified technical data. Last updated: April 2026

Related Faults

00Outdoor Board LED only green lights up after startup - No outdoor unit of address 0 / Remote controller transmission wire open1OPERATION INDICATOR lamp blinks 1 time (Pattern A) - Indoor/outdoor unit communication error (Transmitting error - Outdoor unit)14OPERATION INDICATOR lamp blinks 14 times (Pattern A) - Other errors
Source: MHI Air Conditioning
Open Manual (Page 11)Search more codes in this manual