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Reverse Cycle System Repairs Melbourne

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Reverse Cycle System Repairs in Melbourne


When your reverse cycle system stops heating or cooling, you want it diagnosed properly and fixed fast. BM Heating & Cooling repairs reverse cycle ducted systems, wall-mounted split systems and multi-split systems right across Melbourne, from our base in the northern suburbs. We find the actual fault, fix it with quality parts, and test the system in both heating and cooling before we leave.

Our licensed, ARCtick-accredited technicians work on every major brand, whether you bought the system from us or not. From a failed capacitor on the outdoor unit to a refrigerant leak or a control board fault, we get your comfort back the same day wherever we can.

We repair reverse cycle systems throughout Reservoir, Preston, Bundoora, Thomastown, Epping, Coburg, Brunswick, Heidelberg, Northcote and right across the Melbourne metro area.

The Reverse Cycle Faults We Fix


We repair the full range of reverse cycle systems and the faults that come with each.

Ducted reverse cycle: weak or uneven airflow, a zone not heating or cooling, a failed zone motor or damper, an outdoor unit that will not start, ice on the coil, or a fault code on the wall controller.

Wall-mounted split systems: the fan runs but blows warm air, water dripping from the indoor head, ice on the coil, a blinking error light, or an outdoor unit that will not start, most often a failed start or run capacitor.

Multi-split systems: one head not working while the others run, the whole system down from a shared outdoor unit or PCB fault, or uneven performance across rooms.

Common causes we diagnose and repair include refrigerant leaks, failed capacitors and fan motors, faulty PCBs and sensors, blocked condensate drains and worn compressors.

HVAC technician diagnosing a faulty split system with a multimeter in a Melbourne home

How We Repair Your System


We start by finding the real fault, not swapping parts on a guess.

Diagnosis: we read the error code or LED fault sequence, inspect the indoor and outdoor units, filters, coils and drain, and test the electrics with a multimeter.

Refrigerant work: we check the charge and pressures, and because handling refrigerant legally requires an ARCtick licence, our technicians find and repair the leak first, then regas to spec. A regas without fixing the leak just fails again.

Quality parts and testing: we carry common parts like capacitors, fan motors, PCBs, sensors and thermostats, and we run the system in both heating and cooling to confirm the fix before sign-off.

HVAC technician repairing an outdoor reverse cycle condenser unit at a Melbourne home

Why Choose BM Heating & Cooling


Fast, Local Response

Melbourne based and fast, often same day, with priority call-outs during heatwaves and cold snaps when your system fails when you need it most.

ARCtick Licensed, All Brands

Licensed to handle refrigerant legally, our technicians repair every major brand no matter who installed the system.

Honest Repair or Replace

We diagnose and quote before we start, and give you straight advice on whether a repair or a new system is the better spend.

Repair or Replace, and the Brands We Fix


Reverse cycle and split systems typically last 10 to 15 years. If yours is younger and it is a one-off fault like a capacitor, fan motor or sensor, a repair is almost always worth it.

If the system is 10 to 15 years or older, breaking down repeatedly, or the repair would cost more than about half the price of a new one, replacement is usually the smarter call. On ducted systems the existing ductwork and grilles can often be reused, which keeps a replacement affordable.

We repair all major brands regardless of who installed them, including Mitsubishi Electric, Daikin, Fujitsu, Panasonic, Hisense, ActronAir, Kelvinator, Toshiba, LG and Samsung. If a replacement makes more sense we will explain your options honestly, with no pressure.

BM Heating and Cooling technician repairing a reverse cycle air conditioner in Melbourne

Book a Reverse Cycle Repair in Melbourne


Not heating or cooling? Our friendly, licensed team will find the fault, fix it properly and test it in both modes, often the same day.

Call us now to book your service, or fill out our online form and we will get straight back to you.

Email: admin@bmheatingandcooling.com    Phone: 0487 395 496

Reverse Cycle Repairs FAQs


Yes. We repair every major brand including Mitsubishi Electric, Daikin, Fujitsu, Panasonic, LG and Samsung across Melbourne, regardless of who installed the system.

Usually a refrigerant leak, a failed capacitor, a faulty sensor or a compressor issue. A licensed technician needs to diagnose it, and it is best not to keep running it as that can worsen the damage.

Yes. Handling refrigerant legally requires an ARCtick licence. We also find and fix the leak first, because a regas without a repair simply fails again.

If it is under about 10 years and a one-off fault, repair. If it is 10 to 15 years or older, breaking down repeatedly, or the repair costs more than about half a new system, replacement is usually smarter.

Sometimes. Check the heads are not set to conflicting modes, since a multi-split can only heat or cool at once. If the modes match and a head still will not run, it is likely a PCB, wiring or refrigerant issue we can diagnose.

Most often a failed start or run capacitor or a condenser fan motor. Both are common, testable with a multimeter, and usually a same-visit fix.

Usually a blocked or dirty condensate drain, which we clear to stop water damage. Ice on the coil melting off can also cause it, which points to a dirty filter or low refrigerant.

We aim to get to most Melbourne breakdowns the same day, with priority call-outs during heatwaves and cold snaps.

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