Hot Water Maintenance
Dux Hot Water Specialists

Dux Hot Water Repairs & Servicing Across Sydney & Wollongong

Dux has been manufacturing hot water systems in Australia for over 100 years — and their electric storage, heat pump and gas systems remain one of the most commonly installed brands across Sydney and Wollongong. Hot Water Maintenance repairs, services, replaces and installs Dux systems across our full service area, with upfront fixed pricing, zero call-out fee and a no fix, no pay guarantee.

  • 4.9 on Google
  • 20+ Years Experience
  • Zero Call-Out Fee
Dux Specialists

Why Choose Hot Water Maintenance For Dux Systems

A technician servicing a Dux hot water system

Dux is one of the most established hot water brands in Australia — their Proflo electric storage range in particular has been a staple in Sydney and Wollongong homes for decades. That long market presence means our technicians have extensive experience across Dux’s full product history, from older Proflo electric tanks through to the current Ecosmart heat pump range.

Because Dux electric storage systems are so widely installed, common fault types — failed elements, thermostat issues, valve problems, anode rod deterioration — are well understood and parts are readily available. Many standard Dux repairs are completed on the same visit.

For Dux Ecosmart heat pump systems, our technicians are experienced with the specific fault patterns of Australian-made heat pump technology, including the Ecosmart’s patented dual wall heating coil design and Wi-Fi controller diagnostics. Whether the job is a Proflo element repair or an Ecosmart heat pump service, we give you an honest assessment before any work begins.

Common Faults

Common Dux Faults We Repair

Dux systems are built to last, but specific fault patterns emerge across different product lines and ages. Our technicians regularly diagnose and repair:
A Dux hot water system being diagnosed by a technician
10 common faults

We diagnose before we quote

Every fault traced to its actual cause — no guesswork.

Failed heating elements in Dux Proflo electric storage systems — the most common fault across the Proflo range

Thermostat failure — water that is too hot, too cold or inconsistent

Pressure relief valve and tempering valve issues across Dux storage systems

Anode rod deterioration — sacrificial anodes deplete over time and require replacement to protect the tank from corrosion

Tank leaks from the cylinder, valves or pipe connections — common in older Proflo systems near end of life

Compressor and sensor faults on Dux Ecosmart heat pump systems

Wi-Fi controller and touchscreen issues on Dux Ecosmart DHC and Pro-Series units

Refrigerant and airflow problems reducing Ecosmart heat pump performance

Pilot light and burner faults on Dux gas storage systems

Corrosion on external components — particularly relevant for coastal properties across Sydney and Wollongong

If your Dux system has stopped heating, is leaking, tripping the power, showing error codes or simply not keeping up with household demand, our technicians can assess the fault and advise on the most practical repair or replacement option.

System Types

We Work Across All Major Hot Water System Types

Whatever system type you have, our technicians can repair, service and install it. Dux is best known for their Australian-made Proflo electric storage and Ecosmart heat pump ranges — both of which we work on regularly.
Electric Hot Water Systems
Including the Dux Proflo range — Australian-made electric storage systems built to last and widely installed across Sydney and Wollongong.
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Gas Hot Water Systems
Including Dux gas storage and continuous flow systems, reliable performers in family homes and rental properties.
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Heat Pump Hot Water Systems
Including the Dux Ecosmart DHC Series and Pro-Series — Australian made, rebate eligible and backed by a 7-year tank warranty.
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Solar Hot Water Systems
Including Dux solar hot water systems and the Aquamax solar kit for converting compatible gas storage units to solar-boosted operation.
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HWM service van stocked with parts for same-day repairs

Most emergency repairs are completed in a single visit. Our vans carry the most common parts for all major brands, so you are not waiting days for a part to be ordered.

Next Steps

Repair, Service, Replace Or Install A Dux System

Whether your Dux system needs an urgent repair, a routine service, a full replacement or a new installation, our team can help across all service types.
A technician installing a Dux hot water system
Other Brands

We Also Work With These Hot Water Brands

In addition to Dux, our technicians repair, service and install hot water systems from all major brands. If you have a different brand, we’re just as experienced with it.

Not sure what brand you have? Send us a photo of the unit and compliance plate and we’ll identify it before we attend.

Aquamax
Bosch
Dux
Rheem
Rinnai
Stiebel Eltron
Thermann
Vulcan
Why Choose Us

Why Locals Choose Hot Water Maintenance

For more than 20 years, Hot Water Maintenance has helped homeowners, landlords, strata managers and businesses across Sydney and Wollongong get reliable hot water without hidden costs or confusing advice.

Same Day Service

Fast response when you need hot water restored quickly.

Upfront Pricing

Know your repair or replacement options before work begins.

No Fix No Pay

No charge for unsuccessful repair attempts.

Zero Call Out Fee

Clear advice without surprise attendance charges.

Trusted By Homeowners & Property Managers

Reliable communication, dependable scheduling and professional service across Sydney and Wollongong.

FAQ

Frequently Asked Questions

Need Help With Your Dux Hot Water System?

Whether it’s a repair on a Dux Proflo, a service on an Ecosmart heat pump, a full replacement or advice on an upgrade, Hot Water Maintenance can help. Upfront fixed pricing, zero call-out fee and same-day service where available across Sydney and Wollongong.
4.9 Google reviews
Trusted by localsfor 20+ years
10,000+ homesserved across Sydney