Rinnai Hot Water Systems Adelaide

Q: Why does my Rinnai Infinity go cold mid-shower?

Usually a flow sensor or temperature control fault. Our technicians repair Rinnai Infinity continuous-flow systems the same day.

Q: Can I replace my old tank with a Rinnai system?

Yes — we remove your old storage tank and install a Rinnai Infinity or Hotflo wall unit with all gas compliance handled.

Q: Do you offer same-day Rinnai installation in Adelaide?

Yes — we install new Rinnai Infinity and Enviro models across all Adelaide suburbs with upfront pricing.

Same-Day Rinnai Hot Water Repairs in Adelaide

Precision. Performance. Peace of Mind — No Call-Out Fee, Ever.

When your Rinnai hot water system starts fluctuating in temperature, flashing an error, or just can’t keep up, Loyal Plumbing Adelaide is ready to help.

We specialise in Rinnai continuous flow, gas storage, and solar-boosted systems, offering same-day repairs, replacements, and installations across Adelaide — all with no call-out fee and guaranteed workmanship.

Rinnai® is a global leader in energy-efficient hot water technology — discover their full range at the official Rinnai website

We’re a South Aussie family-owned business, proudly servicing homeowners across Adelaide, including Craigmore, Blakeview, Salisbury, Mawson Lakes, Golden Grove, Prospect, Norwood, and Gawler

$180 CASH
BACK*

On All New
Replacement Units

Click Here to book

Rinnai Hot Water Installations & Replacements

At Loyal Plumbing Adelaide, we work with all Rinnai systems — from compact Infinity gas units to powerful solar-ready setups.

Whether your unit’s throwing an error code or you’re upgrading to a more efficient model, we’ll handle the lot.

We provide:

All new Rinnai installations are fully compliant with South Australian gas regulations and include warranty registration and a workmanship guarantee.

Common Rinnai Hot Water Problems We Fix

No hot water at all — Likely a faulty element, thermostat, or blown fuse.
Power tripping or fuse blowing — Usually an electrical short in the element or thermostat.
Water too hot or fluctuating — Thermostat failure or poor calibration.
Error codes (e.g. 11, 12, 14) — ignition, flame sensor or fan fault
Popping or hissing noises — Sediment buildup or overheating element.
Rusty or discoloured water — Indicates tank corrosion or a failing anode rod.

Our technicians are trained on all Rinnai Infinity and Enviro systems, and most repairs can be completed on the first visit — with no call-out fee.

Why Choose Loyal Plumbing

Honest Quotes, Fast Response, and Work Guaranteed for Life.

No Obligation Free Quotes

Get honest advice and upfront pricing — no pressure, no pushy sales.

Same Day Service Guarantee

Plumbing emergency? We’ll be there today — not tomorrow.

Transparent Fixed Price Quotes for All Hours – No Surprises

No call-out tricks, weekend fees, or hidden extras. Just honest pricing.

Lifetime Workmanship Guarantee

We stand by our work — for life. If it’s not right, we’ll fix it.

Arrive on time, every time.

Punctual, reliable, and ready to go! We respect your time.

Loyal Plumbing Service Guarantee

Service that earns loyalty, guaranteed!. It’s more than a slogan. It’s how we pride ourselves

Pensioner/Seniors Discount

Proud to support our community with discounted rates for seniors.

Buy now pay later – Brighte

Get the job done now without the scary upfront costs. Flexible, interest-free payments through Brighte.

$49 Off*

Your First
Service

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Why Choose Loyal Plumbing for Rinnai Repairs

We’re licensed gas fitters with deep experience in Rinnai continuous-flow technology.
Fast, affordable, and always honest — that’s the Loyal Plumbing promise.

Popular Rinnai Models We Service

We install, service, and repair all popular models of hot water units made by Rinnai.

Explore More Hot Water Solutions

What our customers say

    
 
 
      Posted on Google  
   
   Emma O 
 13 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Had our pipe relined with Cameron and Alex. Spoke to Cameron on the phone Monday and had the pipe done by Tuesday. They were reasonably priced, reliable and very easy going. Explained everything well and very considerate of noise with a newborn baby. Best plumbing experience I’ve ever had, definitely recommend
  
 
     Posted on Google  
   
   Ben Ragless 
 7 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Alex and his whole team are fantastic to deal with!
  
 
     Posted on Google  
   
   James Fitzgerald 
 18 September 2026
 
 
 Trustindex verifies that the original source of the review is Google. Late minute call due to contractors cutting our pipe. No issues or stress at all as they accommodated our needs and were awesome. 100% recommend.
  
 
     Posted on Google  
   
   Nic Raspa 
 17 September 2026
 
 
 Trustindex verifies that the original source of the review is Google. WOOOW!!,SUPER GUYS, PERFECT, SIMPLY THE ABSOLUTE VERY BEST, 5 GOLDEN STARS, THANKYOU SO MUCH FOR YOUR ABSOLUTE BRILLIANT TOP 1ST CLASS PROFESSIONAL FRIENDLY SERVICE FROM THE PHONE CALL TO THE OFFICE TO THE GUYS ON DUTY. SIMPLY BRILLIANT, AMAZING WORK FROM ALL, I'VE BOOKED THEM IN TO DO MORE WORK AND MAKE MY HOME LOOK AND FEEL LIKE GRACELAND!!. LOVE IT!!. THANKYOU TO ALL. 🙏 YOUR SIMPLY THE BEST!!.CHEERS, NIC.
  
 
     Posted on Google  
   
   David Healey 
 10 September 2026
 
 
 Trustindex verifies that the original source of the review is Google. An excellent job
  
 
     Posted on Google  
   
   Catherine Mackenroth 
 21 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. Outstanding service from the whole team. From booking, to showing up on time and friendly service. Thanks so much! Will definately be calling Loyal Plumbing again for any future work needed.
  
 
     Posted on Google  
   
   Kyle McMillan 
 20 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. Very responsive and punctual, easy to deal with, explained what they were going to do and offered a fixed price before starting any work. Reasonably priced and did a great job
  
 
     Posted on Google  
   
   L Brooker 
 18 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. We've had Loyal Plumbing do multiple jobs during our house renovation, and they have been fantastic. They always do efficient and tidy work. The staff are friendly and happy to explain the options and recommendations when quoting the job.
We definitely recommend booking them for all your plumbing services. 🙂
  
 
     Posted on Google  
   
   Rhianna Woodbury 
 16 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. Sabien, Clint and Cameron did a wonderful job fixing and relining my drain. They kept me informed every step of the way. Would definitely recommend!
  
 
     Posted on Google  
   
   Vornn Rin 
 14 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. Friendly helpful staff and got the job done quick and professionally. Very well priced compared to other quotes. Highly recommended. Thanks guys👍