My Rinnai Infinity shows an error code — can you fix it?

Yes. We carry parts and diagnostic tools for every Rinnai Infinity error code (11, 12, 14, 16, 51, 61, 71, 99 and more), and for the equivalent Rheem Metro, Bosch, Thermann and Dux fault codes.

Why does my instant system go cold mid-shower?

Common causes are a clogged inlet filter, a fouled flame rod, low gas pressure, or a failing fan motor. All are repairable on the first visit in most cases.

Do you service both gas and electric instant systems?

Yes — gas continuous flow (Rinnai, Rheem, Bosch, Thermann) and electric instant units (Stiebel Eltron, Zip, Thermann). Electric instant repairs may require an electrician for circuit work, which we coordinate.

Do you service Sydney, the Central Coast and Newcastle?

Yes. Infinity Hot Water covers every suburb across Sydney, the Central Coast and the Newcastle / Lake Macquarie region. Our vans are stocked for same-day work and we respond to urgent jobs within 90 minutes.

Are your plumbers licensed and insured?

Every technician we send is a fully licensed NSW plumber and gasfitter, carries public liability insurance, and is qualified to work on Rheem, Rinnai, Dux, Bosch, AquaMAX, Vulcan, Stiebel Eltron, Sanden, Reclaim Energy and other major brands.

Do you provide a written quote before starting work?

Yes. You receive a fixed, written quote before any work begins — no hidden fees, no surprises. Emergency call-outs are quoted on arrival once we have diagnosed the fault.

Instant Systems

Instant Hot Water Repair

Name: Infinity Hot Water
Address: Sydney, NSW, AU
Telephone: 0420 102 207
Price range: $$
Rating: 4.9

Specialized instant hot water system repairs for gas and electric continuous flow systems.

✓ Instant system specialists
✓ Gas and electric
✓ Fast repairs
✓ Quality service

Call 0420 102 207

Starting from $195

Professional technician adjusting instant tankless hot water system controls

90-minute response

Licensed NSW plumbers

Fixed written quotes

12-month workmanship warranty

About our instant hot water repair service

Infinity Hot Water provides fast, reliable instant hot water repair across Sydney, the Central Coast and Newcastle. Whether you are dealing with a sudden breakdown, planning an upgrade, or comparing systems for a new build, our licensed plumbers and gasfitters handle every job from initial site visit through to final commissioning and council compliance paperwork.

We service every major brand — Rheem, Rinnai, Dux, Bosch, AquaMAX, Vulcan, Sanden, Reclaim Energy, Stiebel Eltron, Thermann, Chromagen and iStore — and carry common spare parts on every van so most repairs are completed in a single visit. Specialized instant hot water system repairs for gas and electric continuous flow systems.

All work is quoted up front in writing, completed to AS/NZS 3500 standards, and backed by a 12-month workmanship warranty plus full manufacturer warranty on any new equipment installed. Call 0420 102 207 for a same-day appointment or request a quote online.

What's included

Every job comes with these as standard.

Instant system specialists

Gas and electric

Fast repairs

Quality service

Why choose Infinity Hot Water

What sets our service apart.

Same-day service

Urgent jobs answered within 90 minutes across the Sydney metro, Central Coast and Newcastle / Lake Macquarie.

Fixed up-front pricing

Written quotes before work starts. No hidden call-out fees, no surprises on the invoice.

Licensed specialists

NSW-licensed plumbers and gasfitters with manufacturer accreditation for Rheem, Rinnai, Dux, Bosch and more.

12-month workmanship warranty

Every job is backed in writing, on top of the full manufacturer warranty on any new equipment.

Genuine spare parts

Vans stocked with valves, elements, thermostats, anodes and PTR valves so most repairs are done in one visit.

Rebate paperwork handled

For heat pump and solar installs we lodge the small-scale technology certificates (STCs) so you receive the rebate at point of sale.

How our instant hot water repair service works

1. Phone diagnosis

Tell us the symptoms — no hot water, leaking, pilot light out, error code. We ask the right questions to arrive with the right parts.

2. On-site inspection

A licensed plumber tests pressure, anode, element, thermostat, valves and gas/electric supply, then confirms the fault and quotes in writing.

3. Repair on the spot

Where possible we complete the repair the same visit using genuine parts. If a full replacement is more cost-effective, we say so.

4. Test & guarantee

We flush, refill and pressure-test the system, then leave you with a written invoice, warranty details and aftercare advice.