Certified Mitsubishi Electric HVAC technicians serving Australian homes and businesses. All models. All series. Same-day service. Upfront pricing. Call 1300 019 320.
MSZ, MXZ, PEA, PEAD, City Multi & more
Available in most service areas
OEM-approved replacement components
1300 019 320 — always available
On every installation and repair
Mitsubishi Electric is widely regarded as one of the world's leading air conditioning manufacturers — and in Australia, their systems are consistently rated among the most reliable, energy-efficient, and technologically advanced available. From the iconic MSZ-AP reverse cycle split system to the sophisticated City Multi VRF commercial systems, Mitsubishi Electric air conditioners are engineered to deliver precise, consistent comfort across Australia's varied and often extreme climate conditions.
At WTFix Air, we have invested specifically in Mitsubishi Electric training, diagnostic tools, and parts inventory. Our technicians are experienced across the complete Mitsubishi Electric product range and familiar with the brand's proprietary communication protocols, controller architecture, and specific error code library — ensuring accurate diagnosis and effective repairs every time.
Whether you need a Mitsubishi Electric split system installed in your home, a commercial ducted system serviced in your business premises, or an urgent repair to a unit showing an error code — we are the Mitsubishi Electric service specialists you can call with confidence.
Japan — part of the global Mitsubishi Electric Corporation, one of the world's leading electronics and engineering groups
Industry-leading star ratings — many models achieve 5 to 7 stars for both cooling and heating efficiency
Some of the quietest units available — indoor units operating as low as 19dB(A) on low speed
Advanced plasma quad filtration, anti-allergen enzyme filter, and built-in air purification across selected models
MELCloud Wi-Fi control, weekly programming, and integration with smart home platforms
Hyper Heating Inverter (H2i) technology — effective heating at temperatures as low as -25°C outside
We install, service, and repair every series in the Mitsubishi Electric air conditioning range — from premium residential split systems to large-scale commercial VRF solutions.
Premium Residential Split System
The MSZ-AP is Mitsubishi Electric's flagship residential split system — offering outstanding energy efficiency, ultra-quiet operation, and advanced air purification. Available in capacities from 2.5kW to 9.0kW. Features the i-see Sensor for intelligent occupancy detection and automatic temperature adjustment.
Designer Split System
The MSZ-EF Art Series combines Mitsubishi Electric's renowned performance with a premium flat-panel design available in four stylish colours — white, black, silver, and rose gold. Ideal for design-conscious homes, prestige properties, and spaces where aesthetics are as important as performance.
Multi-Head Split System
The MXZ series outdoor units support between two and five indoor units of mixed types — wall-mounted, ceiling cassette, floor-mounted, and slim ducted — all connected to a single outdoor compressor. Ideal for homes and businesses that need multi-room climate control without the cost and complexity of a full ducted installation.
Residential & Commercial Ducted
The PEA and PEAD series are Mitsubishi Electric's ceiling-concealed ducted indoor units, designed for whole-home and commercial ducted installations. High-static ducted units deliver powerful, even airflow through ceiling or floor duct networks, with optional zone control and advanced controller integration.
Large Commercial System
City Multi is Mitsubishi Electric's Variable Refrigerant Flow (VRF) commercial system — the choice for office buildings, hotels, retail centres, schools, and large commercial facilities. Capable of simultaneously heating some zones while cooling others, City Multi delivers whole-building climate control with exceptional energy efficiency and zone flexibility.
Four-Way Air Distribution
Mitsubishi Electric ceiling cassette units are recessed into the ceiling with only a decorative panel visible, distributing air in four directions simultaneously for even, draught-free coverage of open-plan spaces. The ideal choice for commercial offices, retail stores, restaurants, and any large open-plan area where wall space is limited.
Mitsubishi Electric continuously invests in research and development — delivering technologies that set the benchmark for efficiency, comfort, and air quality in the Australian market.
A 3D infrared sensor that detects the position and activity of occupants in the room, automatically directing airflow to where people are and adjusting temperature settings based on activity levels — for hands-free comfort without manual adjustment.
Mitsubishi Electric's advanced four-stage air filtration system removes dust, allergens, bacteria, viruses, and odour molecules from the circulated air — delivering cleaner, healthier indoor air quality in addition to temperature control.
Advanced heat pump technology that maintains effective heating performance at extremely low outside temperatures — down to -25°C in some models. Ideal for cold climates where standard reverse cycle systems lose efficiency in winter.
Mitsubishi Electric's proprietary cloud-based remote control platform — control your air conditioner from anywhere in the world via the MELCloud smartphone app. Monitor energy consumption, set weekly schedules, and receive maintenance alerts remotely.
Mitsubishi Electric's advanced DC inverter compressor technology varies compressor speed continuously to precisely match the room's heating or cooling demand — eliminating energy-wasting on-off cycling for consistent temperatures and significantly lower running costs.
Auto-restart automatically restores settings after a power outage. The self-cleaning function periodically dries the heat exchanger to prevent mould growth and maintain air quality — reducing the manual cleaning burden and extending service intervals.
From new system installations to urgent repairs and annual servicing — we cover every aspect of Mitsubishi Electric air conditioner care.
Expert installation of all Mitsubishi Electric systems — residential split systems, multi-head configurations, ducted systems, and commercial units. Every installation includes load calculation, optimal positioning, licensed refrigerant and electrical work, and full commissioning.
Annual servicing keeps your Mitsubishi Electric system running at peak efficiency, maintains air quality, and prevents costly breakdowns. Our comprehensive service covers every component — from the filter and coil to the refrigerant circuit and control system.
Fast, accurate diagnosis and repair across all Mitsubishi Electric models. Our technicians carry Mitsubishi Electric-specific diagnostic equipment and a comprehensive inventory of genuine and OEM-approved replacement parts — completing most repairs in a single visit.
Our technicians diagnose and repair every type of Mitsubishi Electric air conditioner fault — from simple filter issues to complex compressor and control board failures.
If your Mitsubishi Electric air conditioner is displaying an error code on the indoor unit display or flashing its indicator lights, this indicates the unit's self-diagnostic system has detected a fault. The table below covers the most commonly encountered Mitsubishi Electric error codes — however, we always recommend calling our team for accurate diagnosis rather than attempting to reset the fault without identifying and resolving the underlying cause.
| Error Code | Fault Description | Action Required |
|---|---|---|
| E6 | Communication fault between indoor and outdoor unit | Professional diagnosis — wiring or PCB fault |
| P1 | Intake air thermistor fault — temperature sensor | Thermistor replacement by licensed technician |
| P2 / P9 | Pipe thermistor fault — refrigerant temperature sensor | Sensor check and refrigerant circuit inspection |
| F3 | High discharge temperature — refrigerant or compressor issue | Refrigerant leak check and system inspection |
| E1 / E2 | Outdoor unit PCB or control board fault | Control board diagnosis and replacement |
| U1 / U2 | Abnormal high pressure — refrigerant or airflow issue | Refrigerant check, coil cleaning, and fan inspection |
| FL | Float switch activated — drain pan full or drain blocked | Drain cleaning and drain system inspection |
| A6 | Fan motor fault — indoor or outdoor fan | Fan motor diagnosis and replacement if required |
If your Mitsubishi Electric is taking longer than usual to reach the set temperature, or is not achieving the same comfort level it once did, this typically indicates a refrigerant issue, dirty coil, or developing compressor fault.
Any error code on the display or unusual flashing pattern on the indicator light is the system telling you it has detected a fault. Do not ignore it — call us for a diagnosis before it worsens.
A Mitsubishi Electric system working harder than it should — due to a dirty coil, low refrigerant, or failing component — consumes more electricity for the same output. A rising bill without changes in usage patterns is a key early warning.
Water dripping from the indoor unit into the room indicates a blocked condensate drain or frozen evaporator. Left unaddressed, this can cause water damage to walls, ceilings, and floor coverings.
A rattling, clicking, buzzing, or squealing sound that was not present before is a sign that something mechanical has changed. These sounds often worsen over time and can indicate a developing fault that is cheaper to address early.
Mitsubishi Electric recommends annual professional servicing to maintain warranty validity, peak efficiency, and air quality. If your system has not been serviced in the past 12 months, book a service before the cooling season begins.
Our technicians have undergone specific Mitsubishi Electric training and are experienced with the brand's proprietary diagnostic protocols, error codes, and system architecture — not just general HVAC knowledge.
MSZ-AP, MSZ-EF Art Series, MXZ Multi, PEA/PEAD Ducted, City Multi VRF, ceiling cassette — we install, service, and repair every model in the Mitsubishi Electric range.
Same-day Mitsubishi Electric repair available in most service areas. We carry genuine and OEM-approved Mitsubishi Electric replacement parts to complete most repairs in a single visit.
Clear, itemised quotes before any work begins. No hidden call-out charges. No surprise items on the invoice. What we quote is what you pay — every time.
Every Mitsubishi Electric installation and repair we complete is backed by our workmanship guarantee. If our work is at fault, we return and fix it at no additional charge — no conditions.
Our emergency repair line is open 24 hours a day, seven days a week. For urgent Mitsubishi Electric faults — particularly during extreme heat — call 1300 019 320 any time.
Everything you need to know about Mitsubishi Electric air conditioner installation, service, error codes, and repair.
The MSZ-AP series is widely regarded as the best Mitsubishi Electric residential split system — offering outstanding energy efficiency, ultra-quiet operation (as low as 19dB), and advanced air purification. For a design-focused bedroom or living area, the MSZ-EF Art Series provides the same performance in a premium flat-panel design. Our team can recommend the correct capacity for your specific room.
Mitsubishi Electric recommends professional servicing at least once per year — ideally in spring before the main cooling season. The Plasma Quad filter should be cleaned by the user every two weeks during heavy use, but the full professional service — including coil cleaning, refrigerant check, and electrical inspection — should be completed annually.
An E6 error code on a Mitsubishi Electric air conditioner indicates a communication fault between the indoor and outdoor unit. This can be caused by a wiring fault, a damaged communication cable, or a PCB (control board) issue in either the indoor or outdoor unit. It requires professional diagnosis — do not attempt to reset the unit without identifying and resolving the underlying cause.
Yes — we supply and install the complete Mitsubishi Electric air conditioning range, including the MSZ-AP, MSZ-EF Art Series, MXZ multi-split systems, PEA and PEAD ducted systems, ceiling cassette units, and City Multi commercial VRF systems. We provide free in-home assessments and written installation quotes with no obligation.
Yes — most current Mitsubishi Electric split systems and ducted units include built-in Wi-Fi or support a Wi-Fi adapter (MAC-567IF-E) for MELCloud connectivity. MELCloud allows full control of your system from anywhere via smartphone app, weekly programming, energy monitoring, and maintenance alerts. Our technicians can configure MELCloud during installation or as a separate setup visit.
Common causes include a low refrigerant charge (refrigerant leak), a defrost cycle that is running more than usual due to very cold conditions, a dirty outdoor coil restricting heat absorption, or a faulty reversing valve. If your system is operating in heating mode but the room is not warming adequately, call us for a same-day diagnosis on 1300 019 320.
Free in-home assessments • Free installation quotes • All models serviced • Same-day repairs • 24-hour emergency line. WTFix Air — your trusted Mitsubishi Electric specialists.