Mitsubishi specialists

Mitsubishi Air Conditioner Service & Installation

Mitsubishi Electric and Mitsubishi Heavy Industries are two separate companies, and between them they make some of the most popular air conditioners in Australia. We look after both. Our licensed technicians service, clean, repair and install Mitsubishi air conditioners, with a fixed price agreed before any work starts.

Licensed, ARCtick-certified technicians
Mitsubishi Electric and Mitsubishi Heavy Industries
Fixed price before we start

Every Mitsubishi system

Both Mitsubishi brands, looked after

Whether it’s a Mitsubishi Electric split in the bedroom or a Mitsubishi Heavy Industries ducted system through the whole house, our technicians know how both are built and what tends to go wrong with them. These are the Mitsubishi systems we work on most.

Electric

Mitsubishi Electric split systems

Wall-mounted MSZ-AP, EF and LN series splits, from 2.5kW bedroom units to large living-area models.

MHI

Mitsubishi Heavy Industries splits

Avanti and Bronte series wall splits, serviced, cleaned and repaired.

Multi-split

Mitsubishi multi-split systems

One outdoor unit running several indoor heads. We service every head and the shared outdoor unit.

Ducted

Mitsubishi ducted air conditioning

Ducted reverse cycle from both brands, including zoned systems run from a wall controller.

Bulkhead

Bulkhead and cassette units

Compact ducted bulkhead units and ceiling cassettes, common in apartments and open-plan rooms.

Controls

Wi-Fi and controllers

Setting up and fault-finding Wi-Fi control, remotes and wall controllers when they stop talking to the system.

Older models

Older Mitsubishi systems

Non-inverter and early inverter models from either brand. We repair them where it's worth it and tell you honestly when it isn't.

Install

New Mitsubishi installs

Sizing and installing new Mitsubishi split systems and ducted air conditioning, with a fixed price first.

Common Mitsubishi faults

Mitsubishi playing up? We'll find out why.

Most Mitsubishi problems start small: a blinking light, a drip, a remote showing a symbol you don’t recognise. These are the faults we fix most often, and what usually causes them.

Flashing lights and blink codes

A flashing green or orange light is how a Mitsubishi reports a fault. We count the blink code, find the cause and fix it, from sensor faults to communication errors.

Not heating or cooling properly

A Mitsubishi that blows cold in heat mode, or barely cools, usually has blocked filters, dirty coils, low refrigerant or a failing part. We test it and tell you exactly what’s wrong.

Water leaking inside

Drips from the indoor unit are almost always a blocked or badly graded drain line. We clear it, check the fall and stop it happening again.

Remote not working or wrong mode

A unit stuck on Dry or Fan, or one that ignores the remote, may only need the settings corrected, or may have a failed receiver board. We check both.

Not sure what's wrong? Book a check and we'll tell you.

When to service

Service your Mitsubishi before summer.before winter.

The best time for a Mitsubishi service is just before you need the system most. A check a few weeks ahead catches a tired part or a blocked drain before the first heatwave or cold snap, when everyone is calling at once.

Each season’s service focuses on the mode you’re about to rely on, and you get a written report at the end.

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September – November

Pre-summer Mitsubishi service

Get your split or ducted Mitsubishi cooling properly before the first hot week.

Fixed price quoted before we start

Book now

March – May

Pre-winter Mitsubishi service

Make sure heating mode, defrost and airflow are working before the cold sets in.

Fixed price quoted before we start

Mitsubishi FAQs

Mitsubishi Air Conditioner FAQs

Answers to the questions Mitsubishi owners ask us most, from what the remote symbols mean to how long an installation takes. Can’t see yours? Call us on 1300 730 896.

Real Answers

Straight from our experts

Trusted Service

Licensed, insured and local

Here to Help

Get the clarity you need

What do the symbols on my Mitsubishi remote mean?

The main ones are the mode symbols: a snowflake for cooling, a sun for heating, a water drop for dry mode and a fan for fan-only. If the unit won’t heat or cool, check it hasn’t been left on Dry or Fan. The manual for your remote lists the rest.

Is Mitsubishi Electric the same as Mitsubishi Heavy Industries?

No. They are separate companies with different models, parts and warranties. We service, repair and install both, so tell us which name is on your unit when you book.

How often should a Mitsubishi air conditioner be serviced?

Once a year for most homes, ideally just before summer or winter. In between, clean the filters yourself every few weeks when the system is in heavy use.

My Mitsubishi air conditioner light is flashing. Can I keep using it?

A flashing light means the unit has logged a fault. Turn it off at the remote, wait a few minutes and restart it. If the light keeps flashing, leave it off and book a check.

How do I reset my Mitsubishi air conditioner?

Turn it off with the remote, switch the power off at the isolator or circuit breaker for a few minutes, then turn it back on. A reset can clear a one-off glitch. If the fault returns, the system needs a technician, not another reset.

How long does a Mitsubishi split system installation take?

A standard back-to-back installation is usually finished the same day. Longer pipe runs, multi-split and ducted systems take more time, and we tell you how long when we quote.

Should I repair or replace an old Mitsubishi system?

If the system is under about ten years old and the fault is minor, a repair is usually worth it. For older systems facing a big repair, we’ll give you both prices so you can decide.

Are you an official Mitsubishi service agent?

No. All Good is an independent heating and cooling company and isn’t affiliated with Mitsubishi. Our licensed technicians service, repair and install Mitsubishi Electric and Mitsubishi Heavy Industries systems across the range.

Book a Mitsubishi service

Book your Mitsubishi pre‑summer service.pre‑winter service.

Tell us what’s happening with your Mitsubishi air conditioner and we’ll help you work out the right next step. From repairs and servicing to maintenance and new Mitsubishi installations, our licensed technicians are ready to help.

Send your details

Takes about a minute. Tell us about your system and what you need.

We call to confirm

We ring to lock in a time that suits you. No automated booking maze.

Serviced, with a report

Your technician cleans, tests and tunes the system, then leaves a service report.

Get started

Request a quote.

Fast, friendly and obligation-free. Tell us a little about your system and a local technician will be in touch.