Question about Kenmore Elite 644 sq. in. Cooking Area Gas Grill 16680\17680

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Weak flames - no pressure

I have a sears propane gas grill. Just refill the tank. weak to non existent flames - waht gives?

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Make sure valve is open on the tank all the way

Posted on May 01, 2010

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Posted on Jan 02, 2017

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I have full propane, yet a low flame?


check the burners are not blocked and the orffice , check the reg on the tank giving full pressure

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Low flame


Next time you use the grill turn the gas on slowly. For some unknown reason when turned on quickly the regulator reduces the gas flow.
Another problem with some gas fittings is an auto shutoff if detects the slightest leak. Sometimes the shutoff is not 100% and allows a small amount of gas causing the weak flame.

Apr 27, 2010 | Weber Genesis Silver B Grill

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Flame not staying lit


This is a common problem with grills purchased after 2001. There is a new safety feature inside the regulator called a 'surge protector'. If you open your propane bottle valve too quickly or if you try attaching a tank with the tank valve in the 'open' position, the propane wants to 'surge' into the grill.

When the propane surges into the regulator (located on the grill hose) the 'surge protector' (inside the regulator) kicks on. When this happens you will not be able to get your grill lit, and if you do, it will be a small blue flame and the grill will not heat up.

So what to do if you trip the surge protector and can't get your grill to light or heat up?

Shut the tank off and shut the valves on the grill off. Disconnect the tank from the grill hose. When you disconnect the tank from the hose you will hear the excess pressure of propane release. This is an indication that you have re-set the regulator's surge protector.

Now that you have deactivated or reset the surge protector, reconnect the tank. Make sure the valve on the tank and the valves on the grill are in the closed and in the off position. After you reconnect the tank to the hose, SLOWLY open the tank valve (making sure the valves on the grill are in the OFF position).

Since you have slowly opened the valve on the tank, the propane did not surge into the regulator and the surge protector did not activate.

Now open 1 valve on the grill and light it. You should get a nice flame. If your grill has more than one valve, open each following valve in sequential order to extend the flames to the other burners.

Thanks for reading and I hope this helps.

Ben Gaetani

Tanks 2 You Propane

propanetanks2you.com

Tanks2youpropane@gmail.com

Mar 28, 2010 | Thermos Grill2Go Gas Grill 4656110

1 Answer

I have a ducane grill and it will not get hot. I


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.

Jan 14, 2010 | Ducane 30400040 Stainless Steel Grill

1 Answer

When I light my grill I get a very weak flame in fact it blows out. I have a full tank and I could use your help. Thanks


If this grill uses the small propane tanks, the regulator in the part that attaches to the tank could be bad.

Nov 29, 2009 | Weber Gas Go-Anywhere Grill

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Weak Flames on Propane Grill


It is possible that your burners are clogged. Clean the burner ports with a paperclip (not a toothpick).

Jun 01, 2009 | Kenmore Elite 644 sq. in. Cooking Area Gas...

1 Answer

Grill with a full tank of gas will not get hot


Low flame, low temperature, yellow flame: This has become the biggest problem with many grills these days and it's almost always because of the regulator (the funny UFO shaped thing on the gas hose). Regulators seem to be stickier these days and when they stick you don't get enough gas to generate a good grilling temperature. To get your regulator unstuck you need to release the pressure on it. Follow these steps exactly:
  1. Turn off the gas at the propane tank
  2. Disconnect the gas line from the tank
  3. Open the grill lid
  4. Turn all control valves to high
  5. Wait for about a minute
  6. Turn all control valves to off
  7. Reconnect the gas line to the tank
  8. SLOWLY turn on the gas at the tank
  9. Light the grill normally
  10. Your grill should now heat normally
To keep the regulator from sticking again make sure that you turn off the control valves first, then turn off the tank valve. Always open your tank valve slowly. If this doesn't work give it a second try. If you still have low flame then you probably have a faulty regulator that will need to be replaced.

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