Tip & How-To about Ovens

Propane, LP, or Natural Gas Regulator Problems

There are many questions involving problems with gas regulators. Most any gas fired appliances will have a regulator somewhere in the system to regulate the gas pressure to the appliance. On natural gas the pressure regulator is often outside, but many stoves and ranges still have a pressure regulator at the inlet also.

On LP or Propane appliances there is a pressure regulator at the source but then also at the appliance. On outdoor grills the regulator is the silver round thing at the tank.
They often look like this.




The function of the pressure regulator is to keep the gas pressure even so that the flame does not vary much when the usage is increased or decreased. The regulator does this by using a small spring and diaphragm assembly. The counteracting pressures work to keep the pressure even. The regulator fails when it gets stuck. They are designed intentionally to fail in the safest mode or in a low pressure state rather then a high pressure. Therefore many problems involve not enough gas rather then too much.

On outdoor gas grills the regulator can sometimes get stuck if the tank valve is opened too rapidly. Or it will just become stiff from the outdoor environment. If the regulator is not letting enough gas through, try shutting the valve and then opening it again slowly. This will help sometimes. If that does not help and the valve is sticking, do not try to adjust the regulator. Replace it with a new one. Trying to adjust it could cause serious safety hazards. I have seen some web sites telling people to adjust the regulator by watching the flame…this can be a good way to get yourself and others hurt.

If you have a range, stove, or oven that is not working right because the flame varies as you turn burners on and off or when the oven goes on, then the regulator is at fault. Once again, do not try to adjust this to make it work, replace it and get it adjusted with the proper instruments to make sure that the gas pressure is right for the appliance.

Pressure regulators come in many shapes and sizes. They can look like any one of these here.


Gas appliances work at extremely low gas pressure. Natural gas appliances often run at 4” Water Column. Lp or Propane at around 10” WC. That means that the pressure of the gas will only raise the water in a tube 4” or 10 “. That is NOT much pressure and you can get that much by gently blowing in a tube.

So, if you are having trouble with not getting enough heat or the flame running very low, the pressure regulator should be one of the first places that you look.

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1 Answer

I have a Regency Trend Gas Wall oven. The Grill part is working but the oven part has stopped. My guess the gas element is blocked. Is there anyone in NZ that is able to repair or refurbish it?


as it is a gas appliance any accredited gas service person will be able to diagnose the problem and repair it
most problems with gas appliances can be attributed to blocked jets , faulty regulators or control units
find a retailer that sells gas appliances and ask who they recommend for the fitting and servicing of gas units

May 31, 2016 | Ovens

1 Answer

power surge now our Frigidaire gas range oven does not work


Good Afternoon Wendes, thank you for your inquiry. I understand that your gas range is inoperable. Let's try reprogramming the unit by either flipping the household circuit breaker off or unplugging it. While the unit is turn off; confirm that the shut-off valve on the gas pressure regulator is in the "ON" position (usually located on the back left-hand side of the range). This valve shuts off gas to the oven. Then you may turn the appliance on. If the steps do not correct the issue, your range could be experiencing a communication error with the EOC (electronic oven control), a potential wiring failure, element or faulty power supply. I would personally contact a professional to accurately diagnose the appliance to determine the root cause to reduce the risk of unnecessary parts. If you do not know a professional technician, manufacturer websites often have service provider locators' onsite to assist you in that regard. If you have any additional questions, please feel free to reconnect!

Aug 04, 2013 | Frigidaire Ovens

1 Answer

have an old MC oven seems like suddenly there is no gas coming through ? I used in a day ago


check regulators, and valves, on the regulator pay close attention to it's vent, (usualy a small brass bolt with a hole in the top) many times these vents become clogged with grease and other sediment, the easy fix is to buy a new regulator, the right fix is to extract the vent system from the regulator and boil it out.

May 24, 2011 | Magic Chef 9122 Gas Single Oven

1 Answer

I will soon need to convert a 1993(?) CALORIC Kitchen Range back to Natural Gas from LP. When I installed it, NG was not available, so the propane company guys converted it to LP. I was not here to learn how they did the conversion and I do not have any instructions. Amana and Whirlpool say they have no info on that range, even though they have taken over control of Caloric. Any idea what I need to do? Thanks! in advance.


First check the regulator valve on the back of the stove. Chances are it is a dual purpose valve and once you are ready to do the converstion.. you simply will move the lever or change the setting from LP to NAT.(obvisouly before proceeding you need to have the fuel supply turned off to the appliance)

Next check under the range lid or on the back of the stove for the spare NATural gas orifices.. when they changed it out for you there were two scenarios.. the range (most do) came with a set of LP orifices..and they simply changed these out on each burner supply including brolier/oven. (orifices are interchangeable nozzles that are threaded into the supply gas burner)

If they had to swap out the regulator chances are they would have given you the one that came with your stove.. However I am fairly sure the regulator is a dual purpose and you simply need to change the setting from LP to NAT.

DO NOT DO THIS WITHOUT CHANGING OUT THE ORIFICES FIRST.

If you cannot locate the spare orifices/spud/nozzles (they are called all of these) on the stove itself you will need to buy a set. A good appliance parts store will be able to help you with these.. again.. you will need one for each burner/burner supply.

If you can locate the range manual it will have instructions on how to do this.

Chances are your Natural Gas company will be able to help you with this.. especially if the regulator is dual purpose.. even if you can't find the orifices they are inexpensive.. fairly standard and easy to acquire. Usually just called a "conversion kit".. it will just consist of four or five small threaded 5/16 brass nozzles/orifices.
The installation is pretty straightforward. Again..a good appliance parts store may recommend a service company...and if your not familiar with diy repairs on a gas appliance.. a 50 to 100 dollar service call is well worth the money.

Best of luck to you!

Apr 11, 2011 | Ovens

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