My pyrox vulcan gas heater reignites continuously with a small bang when it's in use, the noise is driving me crazy, what is the problem please?

SOURCE: Vulcan 300 Freeloader Gas Water Heater

I assume it has a pilot. Try blowing out the pilot area with compressed air or CO2. Then relight the pilot.

Dust can cover the pilot combustion air inlet and cause it to pull away from the safety generator or thermocouple. Its called an oxygen depletion arrangement on some space heaters. I assume your Domestic Water Heater has this setup as well. Even if not the thermocouple is not getting all then heat from the flame. If this doesn't work get back to me here. We'll try 1 more thing.

If this helps you please grade me accordingly. GOOD LUCK

SOURCE: Hi my vulcan gas wall heater goes 'bang' after a

it sounds like delayed ignition, this is VERY dangerous, you need to verify sequence of operation and fuel air mixture.

Ronny Bennett Sr.

• 6988 Answers
• Posted on Jun 15, 2010

SOURCE: Pyrox natural gas heater not functioning properly

Clean the burners out with air pressure,like from a air tank,and a blow gun,then clean the pilot light orifice(this is where the pilot light is)if this does not help,replace the thermocouple ,it will be the problem,if this was at all helpful,please rate,thank you.

Testimonial: "Thanks for your help. Have located the problem now thanks. It's the gas line. Strong smell of gas outside. Grateful for assistance. "

SOURCE: i have a problem with a pyrox gas heater that

check too see if pilot is clean and check air ports to pilot could be blocked

SOURCE: pyrox /vulcan model no 4720006

Hi Chastrix,

Are you follow the below steps to start up your device?

• First Press the ON / OFF button
• Then you need to raise the temperature to HIGH so that the heater calls for heat
• The you will find that within 10 seconds the gas valve will open and the sparkler will function and Also Ignition will commence on a low gas rate and move to high fire after 3- 5 seconds (only if high is selected on the control)
• Within 5 seconds the flame sensor will prove the flame. 5. The fan will not operate until the fan thermostat switch has sensed temperature rise. This may take 2 or 3 minutes.
• The fan will then start on a low fan speed and after 3 - 5 seconds move to high speed (if High is selected on the control)