Heat Pump Hot Water Systems

Replacing Heat Pump Systems

If your heat pump is pushing 10 years, constantly playing up, or making your power bills skyrocket, you're likely better off replacing it. Even a unit that still works could be bleeding you dry compared to a newer model that actually does its job for half the price.

We’ll help you choose the right system from the start, so you aren't left wondering if you’ve made the right choice. We make sure your new heat pump is a perfect match for your family’s hot water habits

We take care of the whole replacement from start to finish. Our licensed plumbers handle the heavy lifting (literally!) by hauling away your old unit and installing a solid, reliable system that won't let you down. 

By making the switch, you can slash your water heating costs by up to 70%, and take advantage of current government rebates available in 2026.

👉 Don’t wait for a total system breakdown. Call WP Plumbing today for a fast, professional heat pump replacement.

Hot Water Heat Pump System Repairs

Is your system throwing a cryptic error code like an "E05" or "P3", making a loud rattling noise, or just refusing to get the water past lukewarm? Heat pumps are a bit more high tech than the old electric water heaters, so when they play up, you need a team that actually knows how to troubleshoot the refrigeration side of things, not just someone who'll reset the breaker and hope for the best! 

At WP Plumbing, we skip the fluff and get straight to the fix; whether it’s a blocked filter, a noisy fan motor, or a sensor that’s completely cactus. We’ve seen it all before, and we know exactly how to get your hot water back on without the guesswork.

Common heat pump issues we repair include:

⚠️ Decoding Error Codes

If your screen is flashing a cryptic E1 (sensor fault) or a P3 (system pressure alert), don't panic. We know exactly what these errors mean for each brand and how to clear the fault properly.

⚠️ Noisy Compressors or Fans

If your unit has started rattling the windows or making a loud grinding sound, it’s usually a sign the fan motor bearings are shot or the compressor is struggling. We can swap out failing parts before the whole thing packs it in.

⚠️ Lukewarm Water

Nothing is more annoying than a shower that won't get hot. We troubleshoot everything from refrigerant leaks and blocked suction filters to glitchy thermostats to get your water steaming hot again.

⚠️ Dripping Valves

A bit of water from the PTR valve is normal, but a constant stream is a waste of money and a flood risk. We’ll replace leaking valves and tighten up loose fittings to keep your garage dry.

⚠️ Tripping Power

If your heat pump keeps tripping the circuit breaker, there's likely a short circuit or a failing electrical component inside. We’ll find the problem and fix it safely so you aren't left in the dark.

👉 Don’t ignore the warning signs. Small faults can quickly turn into expensive breakdowns if left alone. Call WP Plumbing today to get your heat pump repair sorted properly.

Hot Water Heat Pump Servicing

Think of your heat pump like an air conditioner, it needs regular servicing to stay efficient. Because these heat pumps pull heat from the air, they need to stay clean to do their job properly; if they're clogged with dust, they have to work twice as hard and your power bills will show it. 

It’s much easier (and cheaper) to catch a small glitch now than it is to deal with a total breakdown later. An annual service with our team keeps everything running smoothly, and saves you from the headache of a 'no hot water' disaster when you least expect it.

Regular maintenance is really about protecting your back pocket. A clogged filter or gunked-up coil forces the compressor to work overtime. During a standard service, our qualified plumbers handle the dirty work for you:

🔧 Filter & Coil Cleans

We clear out the dust and gunk so your system breathes easily and runs efficiently.

🔧 Safety Valve Checks

We test the TPR and tempering valves to make sure they aren’t leaking or seizing. It’s a small check that prevents a major flood later on.

🔧 Anode Inspection

We check the sacrificial rod that stops your tank from rusting. If it's cooked, we swap it out to stop your tank from rotting from the inside.

🔧 Warranty Protection

Most manufacturers require an annual service to keep your 5 or 10 year warranty active. We provide the proof of service so you stay covered.

👉 Better to catch a small glitch now than a total breakdown later. Call the team at WP Plumbing today to book a service and keep your heat pump running smoothly

Hot Water Heat Pump System Installation

Heat pumps are easily the smartest way to beat rising energy prices. Instead of relying on a power-hungry heating element, they pull warmth from the air to heat your water (just like a fridge running in reverse). You’ll get the same steaming hot water you’re used to, but you’ll use roughly 70% less electricity to get it. 

🌟 In 2026, you’re eligible for double rebates: the $1,000 “Solar Victoria” grant plus an extra $400 if you choose an Australian-made system.

At WP Plumbing, we don’t just 'drop and swap.' We take the time to position your new system for the best airflow and the least noise, meaning it runs at peak efficiency without becoming a headache for you or the neighbours.

Plus, with the massive government incentives available in 2026, there’s never been a better time to switch!

👉 Fed up with paying too much for hot water? Give us a call today. We’ll give you a clear, upfront quote that actually suits your home, so you can start saving on your hot water right away.

Heat Pump Hot Water Brands

Choosing the right brand is about more than just the price tag; it’s about finding a unit that survives the Melbourne frost and qualifies for the best savings. At WP Plumbing, we only install brands that have proven they can handle Australian conditions.

Top brands we supply and install include:

• Rheem Hot Water Systems
• Rinnai Hot Water Systems
• Vulcan Hot Water Systems
• Dux Hot Water Systems
• Bosch Hot Water Systems
• Thermann Hot Water
• Haier Hot Water
• Chromagen Hot Water
• Sanden Hot Water
• Zip Hot Water Systems
• Steibel Eltron Hot Water
• And Many More!

Heat Pump Water Heater Installation, Repairs & Servicing for Big Energy Savings on Your Electricity Bill

Ready to slash your energy bills? A professional heat pump installation is the easiest way to modernise your home. At WP Plumbing, we provide reliable hot water solutions and handle your hot water rebate paperwork from start to finish.

To experience the WP Plumbing difference and our excellent services, call our friendly team on 1300 086 899 or complete our enquiry form today.