CodeRegistry
Brands
  1. Home
  2. Mitsubishi Heavy Industries
  3. Air Conditioners
  4. E48 / Outdoor Red LED 1 flash
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.

E48 / Outdoor Red LED 1 flash

Error E48 / Outdoor Red LED Flashes Once — DC Outdoor Fan motor fault

Mitsubishi Heavy Industries · Air Conditioners

What does E48 / Outdoor Red LED 1 flash mean?

Error E48, indicated by one flash of the outdoor unit's red LED, signals a fault with the DC outdoor fan motor. This fan is crucial for heat exchange in the outdoor unit.

Common Causes

  • DC Outdoor Fan motor fault

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the main power to the outdoor unit.

  2. 2

    Check for any obstructions around the outdoor fan blades that might prevent movement.

  3. 3

    Manually try to spin the fan blades (when power is off) to check for resistance.

  4. 4

    Listen for unusual noises from the fan motor when the unit attempts to start.

  5. 5

    This fault typically requires replacement of the DC outdoor fan motor by a professional technician.

Browse all codes in this manual (110)
Verified technical data. Last updated: April 2026

Related Faults

01Power source faulty — RUN LED OFF, TIMER LED flashes 1 time05Wired remote control wiring error — RUN LED OFF, TIMER LED flashes 5 times35Cooling high pressure control activated — RUN LED flashes 3 times, TIMER LED flashes 5 times
Source: Mitsubishi Heavy Industries Air Conditioners
Open Manual (Page 5)Search more codes in this manual