CodeRegistry
Brands
  1. Home
  2. MHI
  3. Air Conditioning
  4. RUN light is on (stopped)
About·Privacy·Terms

CodeRegistry — Your global library for technical solutions.

For your safety: always follow the equipment manufacturer’s official manuals. CodeRegistry is an independent help site and is not affiliated with the brands listed here.

RUN light is on (stopped)

RUN light stays on even though operation was stopped

MHI · Air Conditioning

What does RUN light is on (stopped) mean?

The RUN light remains illuminated even after the air conditioner operation has been stopped. This is normal behavior if the unit was in SELF CLEAN operation; the RUN light turns off when the CLEAN operation finishes.

Common Causes

  • Unit is in SELF CLEAN operation

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Confirm if the unit was recently running a SELF CLEAN cycle.

  2. 2

    Wait for the SELF CLEAN operation to complete; the RUN light will turn off automatically.

  3. 3

    If you did not intend to run a SELF CLEAN cycle, press the ON/OFF button to fully turn off the unit and then back on.

  4. 4

    Consult the manual's section on SELF CLEAN operation (page 17) for more details.

  5. 5

    If the light remains on indefinitely after being off for a long time, contact your dealer.

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
View Official PDFSearch more codes in this manual