Pool Heater Service, Repair & Installation — Sydney

Gas pool heater not firing, cutting out, or due its annual service? Sydney Pool and Gas Heating are licensed gas fitters who service, repair and install pool heating across Sydney — most faults diagnosed and fixed in a single visit.

Is This What's Happening?

Most calls start with one of these:

  • The heater won’t fire up at all — no response when you call for heat
  • It fires, then cuts out part way through a cycle
  • An error code on the controller you can’t clear
  • It runs, but the pool never gets warm — or takes far longer than it used to
  • It hasn’t been serviced in years and you’d rather find out now than mid-summer

“I couldn’t get the gas heater to work on the pool no matter what I did.”Kelli Thomas

What A Pool Heater Service Actually Includes

Every service runs the same sequence, and you get told what was found:

  1. Check gas pressures and confirm they’re within spec
  2. Clean the flame electrode and pilot assembly
  3. Clean out the burner chamber and combustion fan
  4. Clear soot from the heat exchanger — the most common cause of a heater that runs poorly
  5. Test every safety device
  6. Run the heater for 15 minutes and confirm it holds
Sooted internal components of a gas pool heater before cleaning
Gas pool heater control panel showing its fault code legend

Repair Or Replace?

With an older heater the real question isn’t “can it be fixed” — it’s “is fixing it worth it.” That gets answered on site: what’s failed, what the part costs, and how much life is left in the rest of the unit. Sometimes it’s a sensor and you keep the heater for years. Sometimes it isn’t.

Replacements are quoted on the day — the unit, the gas run and the site decide it. New installs are typically EvoHeat inverter heat pumps or Raypak gas heaters.

“Shane was out the next day to assess whether it could be repaired or whether it was more cost effective to get a new one given the age of the old heater. I decided to replace it with a new Astral Viron heater and he had it installed and connected a few days later. Kids are now enjoying a few more weeks of swimming extending the summer fun before winter comes.”Brad Papworth

Gas pool heater unit opened for servicing in a narrow side access way
Weathered gas pool heater unit with control panel visible

Brands We Service And Repair

Most pool heater calls are on a unit that was already at the property when you got there. The four that come up most:

  • Astral — including the JX160 and Viron series
  • Hayward
  • Hurlcon
  • Pentair

Parts are genuine, and where a part has to be ordered you’re told the cost before it is. For new installations we fit EvoHeat inverter heat pumps and Raypak gas heaters.

Hurlcon gas pool heater data plate showing model details
Gas pool heater data plate showing model and serial numbers

When Your Pool Heater Won't Fire

Four causes account for most no-start calls:

  • A failed flue or exhaust temperature sensor — the heater reads a fault and refuses to light
  • A corroded flame electrode, so ignition never establishes
  • A pump pressure switch that isn’t making, so the heater never sees water flow
  • Soot or debris in the burner chamber after years without a service

Diagnosis is the first thing done, not the last — repairs from $225, and you’re told what failed.

Corroded gas pool heater flame electrode held in a cloth
Compliance label on the casing of a gas pool heater

What It Costs

  • Pool heater service — from $285
  • Pool heater repair — from $225
  • New installation — quoted on the day

What moves the price: the unit, what’s failed, whether parts have to be ordered, and site access. An install is never quoted sight-unseen — the gas run and the position decide most of it. All work is covered by a 12-month workmanship warranty.

Recent Pool Heater Jobs Around Sydney

North Bondi, August 2026 — Pentair

The call: pool heater not working. On site, the flue stack sensor was reading the wrong resistance, so the heater was shutting itself down before it could light. Sensor replaced, gas pressures checked and the flame electrode cleaned up. Fired and ran with no issues.

Gas pool heater opened on a deck with test equipment alongside
Pentair gas pool heater unit installed beside a timber deck

Bondi, August 2026 — Astral

An Astral heater that wouldn’t operate at all. Testing found the pump pressure switch wasn’t making — the heater never registered water flow. Linking it out fired the heater straight up, which confirmed every other component was good and the pressure switch was the only part needed.

Astral gas pool heater opened with tools laid out for testing
Astral gas pool heater data plate

Kingsford, August 2026

Booked as an annual service. Corrosion on the flame electrode was already close to stopping the heater lighting. Cleaned up, gas pressures checked, and the burner chamber and combustion fan cleaned out. Tested, no issues — a fault caught before it became a call-out.

Side of a gas pool heater showing its data plate
Internal burner and wiring of a gas pool heater

Maroubra, July 2026 — Hayward

A non-responsive Hayward. Diagnosed a fault in the flue exhaust temperature sensor, supplied and installed a new one, and commissioned the heater.

Control panel of a gas pool heater
Close-up of gas pool heater manifold and pipework

What Customers Say

“Recently had my pool gas heater repaired by Shane after other companies had been unsuccessful. He managed to get it up and running in one visit. He was very knowledgeable with great communication.”Dario Perrino

“After calling a number of companies with no success, Shane came out and managed to fix our gas pool heater in no time at all. Great communication and very reasonable price.”Hannah Rose

Frequently Asked Questions

How often should a pool heater be serviced?
Once a year, before the swim season. From $285.

My pool heater won’t fire up — what causes that?
Usually a flue or exhaust temperature sensor, a corroded flame electrode, a pump pressure switch, or soot in the burner.

Is an older heater worth repairing?
Depends what’s failed. It’s assessed on site before anything is quoted.

Do you do heat pumps as well as gas?
Yes — gas pool heaters and inverter heat pumps. Not solar.

Where We Work

Recent pool heater work across the Eastern Suburbs — North Bondi, Bondi, Kingsford and Maroubra — with gas and heating work right across Sydney, including the Inner West, North Shore, Northern Beaches and the Sutherland Shire.

Pool Heater Not Firing, Or Due Its Service?

Call 0422 302 722 — licensed gas fitter NSW 498373C, 12-month workmanship warranty.