We have been servicing, maintain and installing AstralPool Viron heaters since their inception. With overt a decade of improvements and upgrades we believe the AstralPool Viron gas pool heater is an industry leader in efficiency and reliability. The 3 varying sizes of this unit save energy and reduce greenhouse emissions whilst methodical manufacturing alterations have ensured the current off the line units are far more cost friendly during the usage than they’ve ever been before. Simple and easy to use these heaters heat your pool quickly and accurately to the temperature you select. The heat demand technology inbuilt in these units saves approximately 20% on operating costs over a conventional gas heater. By not having to run your gas heater all the time you will also reduce the Co2 emissions produced. Available in ULPG or Natural gas capability – a natural gas connection is the most commonly used and its one of the cleanest and greenest fuels available. The Viron gas heater is covered by a 5-year warranty on the cabinet, 2 years on gas valve, circuit boards and burner and 1 year on the heat exchange. Call or email us today for an all inclusive quote which includes installation and a gas compliance certificate issued by one of our licensed gas plumbers.
AstralPool Viron Gas Heaters

F1 - fault on AstralPool/Hurlcon gas pool heater
This is when the thermostat reads over 45degrees. Could be due to overheating or corrosion damage to the sensor.
F2 – fault on AstralPool/Hurlcon gas pool heater
This is a fault with the HiLimit sensors either reading that the water temperature is too high coming in or out of the heater. We have found through our 10 years of experience that this is the most common fault of all the heaters. However we find that more often than not there is a leak from the heater which has caused the sensors to slightly corrode.
F3 – fault on AstralPool/Hurlcon
This is just a simple thermistor fault and more than likely needs replacement.
F4 – This is a fault on the older Hurlcon MX series and JX heater
Signifies a flame roll out. Best to get this checked ASAP as more than likely your heater is seriously damaged.
F6 – This fault occurs on the AstralPool/Hurlcon heaters
When the air pressure switch or the overheat HiLimit175 has tripped. Possible causes are a blockage to the flue which is causing the air to compress within the heater or a damaged sensor on the flue.
F7 – This fault is occurs with the Viron and ICI range of AstralPool heaters
When there is a blockage to the condensate drain. However we have found that after some time with the heaters condensing that the float switch at the bottom of the heater calcifies and needs replacement.