My grill is making a loud sound of gas. Almost like a blow torch and I think I am getting too much gas pressure. Also, the metal screens at the on/off knobs look like they could be out of place... My teenagers tried to fix something they knew nothing about and now I am nervous to even mess with it...help...
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I've been in the propane business 28 years and have found regulators from the 1950's still in use today. Regulator manufacturers tell us they should be replaced after 25 years. It should typically outlast the grill itself, which often require new burners, cooking grids, etc. The hissing sound can just be the flow of gas thru the regulator. If you smell gas however, then you should replace it. If it is affecting the pressure to the burners and not getting hot enough to cook properly, then replace it as well.
Depending on how loud the hissing is! If it isn't very loud it is probably corrosion on the burners. If your blames are more yellow than blue, you have corrosion building up. So I suggest using a wire brush to clean it up and then using a small ice pick to clean the gas outlet.
A loud blowing noise is not caused by failing to timely get an oil change, if the oil is gone you will get a loud metal on metal sound followed by a clunk of the engine freezing up. The oil pressure light would have been on solid for a while first. If it sounds like a vacuum cleaner, could be a plugged catalytic converter, if not could be a power steering pump low on fluid. I think you are hearing a fan which does not kick off by itself. On a car that new something has failed. I would get the warranty papers out of the glovebox, examine them and take this to a dealer ASAP.
Remove the tig torch twist lock from the front of the machine. Step on the pedal as if you were striking an arc and gas should flow out of the twist lock port. If gas comes out of the port, your torch probably has a valve built in (many do) often this is a sleeve on the torch body which you rotate but may not be obvious.
If no gas out of port then its the solenoid or regulator.
You do have the machine in TIG mode and not stick?
The most common cause of reduced flames is a pressure problem. Could be the gas regulator for the grill. When the burners are on try giving the gas regulator a tap with something hard and see if they change size. If they do then the rqulator could be sticking. And there is a very small hole on the regulator called a vent. If this hole gets plugged with dirt or grease you can get a low pressure problem. Look very carefully on the regulator housing for this small hole and verify that it is clear. Try using a small metal wire(like a tie strap for sandwich bags) to make sure it is clear. Also verify that the tank(if propane) is not overfilled. An overfilled propane tank will cause a pressure problem. You can turn the relief screw on the propane tank until no more liquid comes out to see if this fixes your problem.
One of the major problems with propane gas grills, including the Masterbuilt Veranda, is the pressure regulator. They get to where they do not release enough propane. Some, most, have an adjustment screw that will let you correct these problems. I think I replaced my Veranda regulator with another older pressure regulator from an old grill. Makes you crazy if you don't know this.
Assuming the burner's clean, try this solution that worked for me: Often with a big bottle, people turn the gas off and on at the big
bottle and leave the grill valve open. That makes the regulator see a
low pressure on its output, which is a potential leak indication. It
goes into "bypass". Try turning off the tank, turning off the grill
valve, and turning on the tank, then waiting 20-ish seconds before
turning the grill valve on.
If the burner's dirty, I take mine out of the grill and run it through my oven's self-cleaning cycle.
This is on the Weber site, under support. I have been experiencing the same problem and have not used it because of it.
Humming or whistling from the regulator: Outside temperature, humidity, barometric pressure, and the gas level within the tank may cause the rubber diaphragm inside the regulator to vibrate, making a humming or whistling sound. Although this sound may be alarming, this is NOT dangerous as long as it is not accompanied by the smell of gas. If the humming sound persists, a change in atmospheric conditions will eventually stop the vibration.
Make sure the unit is operating on the correct gas, Natural or Propane (LP). The sound you are experiencing is either not enough gas and the flame is burning inside the burner port(s) or too much gas and the flame is much larger than it has to be. At any rate, get a technician to check the gas pressure entering into the home. NOW!