Rinnai specialists

Rinnai Heater & Air Conditioner Service & Repairs

Rinnai is best known for gas heaters, and it also makes split and ducted air conditioners. We look after both. Our licensed technicians service, clean, repair and install Rinnai gas heaters and air conditioners, with a fixed price agreed before any work starts.

Licensed, ARCtick-certified technicians
Rinnai gas heaters, split and ducted systems
Fixed price before we start

Every Rinnai system

The whole Rinnai range, looked after

Whether it’s an Energysaver on the lounge room wall or a Rinnai split system in the bedroom, our technicians know how Rinnai systems are built and what tends to go wrong with them. These are the Rinnai systems we work on most.

Gas heater

Rinnai gas heaters

Gas space heaters, including Avenger and Dynamo models, serviced and tested for carbon monoxide.

Flued

Energysaver flued heaters

Power-flued Energysaver gas heaters cleaned, tested and repaired, including fan and ignition faults.

Cleaning

Filter and fan cleaning

Dust-clogged filters and fans are the main reason a Rinnai gas heater overheats or cuts out. We strip and clean them.

Split

Rinnai split systems

Wall-mounted Rinnai split system air conditioners and multi-split systems, serviced, cleaned and repaired.

Ducted

Rinnai ducted systems

Ducted reverse cycle heating and cooling, and gas ducted heating, including zoned systems.

Controls

Remotes and thermostats

Fault-finding Rinnai remotes, thermostats and wall controllers that show an error or stop responding.

Older models

Older Rinnai heaters

Rinnai gas heaters that are no longer made. We repair them where it's worth it and tell you honestly when it isn't.

Install

New Rinnai installs

Installing new Rinnai gas heaters and split systems, or replacing an old heater with a current model.

Common Rinnai faults

Rinnai playing up? We'll find out why.

Most Rinnai problems start small: an error code on the heater, a filter light that won’t go out, a split that isn’t keeping up. These are the faults we fix most often, and what usually causes them.

Error code 11 or 12

On a Rinnai gas heater, codes 11 and 12 usually point to an ignition or flame fault. We find out why it isn’t lighting or staying lit and fix the cause.

Air conditioner not cooling or heating

Weak airflow or lukewarm air from a Rinnai split usually comes down to blocked filters, dirty coils, low refrigerant or a failing part.

Water leaking from the split

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.

Heater cutting out or smelling

A heater that shuts down after a few minutes, or smells of gas or fumes, should be turned off and checked. Blocked filters and fans are common causes, and we test for carbon monoxide.

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

When to service

Service your Rinnai before summer.before winter.

The best time for a Rinnai service is just before you need the system most. Book the gas heater in autumn and the air conditioner in spring, so a weak igniter or a blocked drain is found before the first cold snap or heatwave, when everyone is calling at once.

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

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September – November

Pre-summer Rinnai air conditioner service

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

Fixed price quoted before we start

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March – May

Pre-winter Rinnai gas heater service

Make sure your Rinnai gas heater lights first time and burns safely before the cold sets in.

Fixed price quoted before we start

Rinnai FAQs

Rinnai Heater & Air Conditioner FAQs

Answers to the questions Rinnai owners ask us most, from how often to service a gas heater to what an error code means. 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

How often should a Rinnai gas heater be serviced?

At least every two years, including a carbon monoxide test. Rinnai split and ducted air conditioners are best serviced once a year.

Does servicing matter for my Rinnai warranty?

Keeping the system maintained is part of looking after your warranty. Every visit comes with a written report, so keep it with your purchase paperwork in case you ever need to make a claim.

What does error code 12 mean on a Rinnai gas heater?

Codes 11 and 12 usually mean the heater hasn’t lit or the flame has gone out. Check the gas is on and try once more. If the code comes back, turn the heater off and book a check.

How do I clean the filter on my Rinnai gas heater?

Turn the heater off and let it cool, then vacuum or wipe the filter, following the manual for your model. If the heater still cuts out or the filter light stays on, the inside needs a proper clean, which is part of a service.

How long does a Rinnai gas heater service take?

About an hour for most gas heaters, including the carbon monoxide test. A split system takes about an hour per indoor unit.

Which Rinnai systems do you work on?

Gas space heaters, Energysaver flued heaters, gas ducted heating, and Rinnai split, multi-split and ducted air conditioners.

Should I repair or replace an old Rinnai heater?

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

Are you an official Rinnai service agent?

No. All Good is an independent heating and cooling company and isn’t affiliated with Rinnai. Our licensed technicians service, repair and install Rinnai heaters and air conditioners across the range.

Book a Rinnai service

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

Tell us what’s happening with your Rinnai heater or air conditioner and we’ll help you work out the right next step. From repairs and servicing to maintenance and new Rinnai 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.