25 October 19

Alert: for all Gas Fitters

Suspension of AGA4624 –

Suburban RV/Caravan gas-fueled water heaters

 A safety alert was issued early in the October 2019 and as per the GTRC, website, the above Certification AGA4634 was suspended on the 25/09/2019. 

Covering the Suburban/caravan/vehicle water heaters with the following models:


A safety alert has been issued by the Petroleum and Gas Inspectorate.

A reminder for all gas fitters, before you install any gas appliances, you must check the Gas appliance has an approval. 

It is an offence to supply or install, suspended, cancelled,NON- certified or NON-approved gas appliance.

It is the responsibility of the Licenced gas fitter to check each gas appliance for approvals, and as suggested prior, the best location is the Gas Technical Regulators Committees GTRC National Certification Database GTRC,, if the appliance is not listed on this database, then it can not be installed.


Under certain conditions, the water heater can generate elevated levels of carbon monoxide which, in some cases may spill into the habitable space of the vehicle. Carbon monoxide (CO) is a colourless, odourless gas that can adversely affect the health when inhaled, in turn, this can be lethal.

Recommendations as follows:

Suburban gas-fueled units- Manufactured from 4th April 2018 to 1st August 2019
With Serial numbers > From 181315552 to 193002648, and -

 Advise any Owners of Caravans, motor homes and camper trailers that there is potential safety risk while operating the below appliances on LP gas:

Model Numbers Affected: SW6DEA, SW4DEA, SW4DECA, SW6PA, SW6DA, SW4DA, SW6DECA (dual fuel)

Serial Numbers affected: From 181315552 to 193002648-Manufactured from 4th April 2018 to 1st August 2019

STOP using the appliance immediately and check whether your hot water heater is listed above. You can find the model number on the data plate.

If your water heater is confirmed to be one of the model numbers listed above, then it must NOT be used until rectified by an authorised Suburban agent or dealership
The gas isolation valve to the appliance must be turned off until the appliance & installation has been rectified
The safety issues only apply while the appliance is operating on gas. If your suburban water heater can operate from a 12 or 240 volt supply as well as from LP gas, it is safe to continue operating the appliance from 12 or 240 volts only.
All Gas Work Licence holders who comes across one of the affected model numbers must advise the owner and refrain from certifying the gas system as compliant until the unit has been rectified.

In summary for gas fitters

The supply and installation of new Suburban Water Heaters covered by the suspended certificate is prohibited for the duration of the suspension and until further notice.

Suburban Water Heaters identified by the model and serial numbers in the table above cannot be certified as part of an inspection of a used vehicle gas system for resale until further notice.

Recommendations for SUBURBAN Water Heaters

NOT identified in the above information

Suburban Water Heaters not identified in the table above should be checked to ensure safe operation, including correct combustion characteristics and products of combustion, cannot enter the habitable space, prior to issuing a Gas System Compliance Certificate.

A combustion analysis and safety test of the combustion must be carried out -
The maximum recommended CO/CO2 ratio is 0.004 to a maximum of 0.01
Inspect and test the appliance to ensure products of combustion cannot enter the habitable space of the caravan and confirm that the appliance is room sealed. 

Should any of the above tests fail or these tests can not be carried out then disconnect the appliance and make it safe:

If you cannot confirm the appliance is safe, then it would be in the best interest to replace the suspended unit with a currently approved alternative new Hot Water.
Gasfitters should document the process and record the process on a check sheet to confirm the appliance is safe and positively record the results and actions taken.

Gas Fitters this is a timely reminder before installing any Type A gas appliance, always check the GTRC.GOV.AU products certification registers to confirm the Type A gas appliance is or was type test and gas approved and not suspended or cancelled

If you would like to find out how to become a member of the QGA  or for further information and assistance please contact the  Queensland Gas Association Inc on Phone 1300 792 239 for further information or email 


Additional Documents

Click here to download: Alert_For_All_Gas_Fitters__URGENT_ACTIONS_REQUIRED.pdf



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