Question about Coleman (5040B750) Patio Heater

Open Question

Regulator may be bad; not enough gas coming out at the top

I have disassembled a large portion of the unit. I can hear the propoane coming out at the top with a slight hissing noice but the smell of propane is very slight. The propane tank is full and functional and I have cleaned out the top section where the gas is emitted. Has the regulator gone bad or is there another issue?

Posted by on

  • Dale Koehn
    Dale Koehn May 11, 2010

    thanks for your question, it could be that you have a bad regulator, but has it been overly cold ? how many appliances does the propane feed ? are any of the other appliances affected as well ? is the regulator very old ? It could be you have air in the lines and need to bleed them at each appliance, please get back to us and let us know what you find, then we will be able to help you nail down your problem, thanks again, mr.grzz



5 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

  • 1 Answer

SOURCE: propane will not come thru burners

Most propane problems are due to a new valve on the top of the tank. It is designed to only allow a minimal flow until the line is pressured. This prevents fire flair up from broken or leaking hoses. Always turn the bottle on and wait before trying to light a burner. If the burner is on first, the propane will never come out at full flow or if you have a leak in the system, it won't pressurize sufficiently to allow full flow out of the bottle. There is never "air" in the tank.

Posted on Jan 13, 2009

  • 8220 Answers

SOURCE: cannot conect regulator to small 16.4 oz propane tank

It must have some sort of packing spacer you need to remove from the hose to attach the tank. LOL

Posted on Apr 12, 2009

  • 333 Answers

SOURCE: I bought a hose to hook up to a 20 lb propane tank

probably need a different regulator

Posted on Jun 22, 2010

  • 4736 Answers

SOURCE: coleman heater model 5445c700 propane camp heater

If you're using a 20lb propane tank (Gas Grill Tank), that may be the problem. Turn off the propane tank at the tank valve and disconnect it from the tank. Wait 5 minutes and reattach the heater hose to the tank. Turn the propane tank valve on very,very slowly until it's all the way open. Try lighting your heater now. If the pilot flame height returned to normal, that was the problem.

FYI - The Thermocouple has nothing to do with the length of the pilot flame. It's a safety feature that stops the gas if the pilot flame goes out for any reason.

Hope that solves your problem. Please let me know.


Posted on Feb 07, 2011

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Xlt lariat

I would check the fuel pressure regulator. If you pull the vacuum line off the regulator (truck not running) and fuel comes out of the line, the regulator is bad. The other answer would be that you may have enough fuel pressure to start the truck but it may not be strong enough to keep it running. I'd suggest doing a pressure test on the fuel system. If this is a gas engine and not diesel, I believe the pressure should be around 50 psi.

Oct 29, 2013 | Ford F-350 Cars & Trucks

1 Answer

My gas grill sprays alot of gas when i first turn it on, the has very low flame

Hi axmaster892
You have a faulty gas regulator...
Gas Regulators are notorious for doing just what yours is doing.
After sitting in the same position for a length of time they freeze in that position, then along comes a grain of sand, or other debris and blocks the gas flow.
Remove the regulator if possible, if not try it in place with the tank removed.
Get a plastic headed hammer and gently but firmly tap on the regulator, your trying to free up the diaghram inside.
After tapping and freeing the regulator diaphram reinstall and you will be good to go.
If this does not work, the replace the regulator as it is defective.
Some regulators are ajustable, if you have one of those then try to adjust the regulator, you will see a cap on top of the regulator, that is where the adjustment screw is located.
Please take time to rate me

Oct 29, 2012 | Brinkmann Grilling

2 Answers

I have 2 sunjoy G-PH001PSS, when attached to the propoane tank, th unit does not light. I do not hear any gas whe turn the control knob to the on position. When i remove the gas line from the heater the...


The lighting PROCESS involves HOLDING that
"PRESS MODE" for QUITE a (long) WHILE...
To clear the AIR out of your fuel line...

I have seen ... Up to 5 minutes
although I believe that is excessive)...

It is MOST LIKELY your troubles are procedural.
(READ the manuals)

Blue Rhino
is the place to START ... or SEARCH
locally on the internet...

Try (they have manuals here... also)
Blue Rhino Outdoor Gas Heaters

Hope this helps

Carnac the Magnificent

Sep 19, 2017 | Patio Heaters

1 Answer

My grill is around 1 year old. My guess is that the regulator is bad. When the gas is on, and the knob/knobs are turned to ignite...either no gas or not enough comes out to ignite the burners. I tried...

Hi gavin508...
Try lightly tapping the gas regulator with a hammer on the top and bottom of the regulator...sometimes that will realease the adjustment needle inside of the regulator and it will start working properly again. if this does not work then replace the regulator as it is faulty.
Please take time to rate me

Sep 04, 2011 | Kenmore Grilling

1 Answer

How do i remove the propoane gas tank safely...i lost my instruction manual. need to replace the tank.

Turn the gas tank valve OFF by turning the tank valve clockwise. Then disconnect the hose from the tank valve and remove the tank from the grill. When reinstalling a full tank, do everything in reverse of removing it. In addition, once the hose is connected to the tank, open the tank valve VERY, VERY SLOWLY (Slow motion, slow). Opening it quickly, can cause the grill's regulator to lockup and provide little or no gas to the burners.

Hope this helped you and Happy Grilling. Thanks for choosing FixYa.

Aug 26, 2011 | Weber Genesis Silver B Grill

1 Answer

Burners won't heat adequately when I plum to bulk propoane tank supply line at my house. What is psi weber requires? Grill works fine when connected to portable tank.

For gas, it's not the psi, you need to know. It's the water column inches of gas at the grill. In which case, it should be 11 to 13 WCI.

If you didn't remove the original gas regulator on the grill. That's the problem. You bulk tank already has a regulator. However, if you LPG System is a high pressure system, then you would need a regulator, but not the one you have. Check with your LP Gas provider for the Btu output regulator that would be required.

Jul 04, 2011 | Weber Genesis Silver B Grill

1 Answer


could be several things with not alot of description here we will give it a try... first off is the control working and does it appear it is trying to start the system just no heat coming from oven... if so i would say if indeed this is a gas oven that you have a bad ignitor on the unit. try the broil does it work if so then we just eliminated the controller most likely and the gas regulator i would say the bake ignitor is bad... you will have to take racks out of oven and on bottom you can remove the flat plate on inside bottom of oven and under that is a heat shield that can be removed to access the ignitor. it has to get hot enough to send voltage back to the regulator to open up...
go to and then hit the parts direct link up top enter your model number to unit and find your part and order good luck to you....

Feb 10, 2011 | GE Profile Spectra JGBP90 Gas Kitchen...

1 Answer

Grill mysteriously not working, gas tank full, can't smell or hear gas come to burner

Go to Dome Depot. Lowes or whomever your large hardware store is and get and new regulator and connecting kit (it is probably the regulator), they are not expensive. If this does not do it, it may be the valve on the broiler, but not likely.

May 01, 2009 | Grilling

1 Answer

Gas burner not getting enough gas

It sounds like a bad pressure regulator. Or it may be adjusted for LP gas. I need more information. Sometimes you can adjust it yourself, sometimes you need to buy a kit or new regulator.

May 18, 2008 | Cooktops

2 Answers

Patio heater

There must be a blockage in the hose and regulator or your large tank may be checking and not allowing the unit to stay lit. Remove the large bottle. Let the gas line equalize for about 30 seconds and then reattach the bottle. Very slowly, open the knob on the large tank and I mean very slowly. Did I say open it slowly. The new OPD propane tanks often have a very touchie excess control valve that won't allow enough gas through if opened too rapidly. Now tray and light the heater. If you still experience the same, get a technician involved so they can inspect the gas pressure.

Oct 23, 2007 | Heating & Cooling

Not finding what you are looking for?
Coleman (5040B750) Patio Heater Logo

Related Topics:

222 people viewed this question

Ask a Question

Usually answered in minutes!

Top Coleman Heating & Cooling Experts

Bill Long

Level 3 Expert

588 Answers

Paul Carew

Level 3 Expert

3182 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Are you a Coleman Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides