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Gas Grill Repair & Maintenance

Regulators/POL Valves

All LP grills are equipped with a pressure regulator which attaches between the grill control valves and the LP cylinder. The pressure output of the tank is much greater than the pressure required to operate the grill and the regulator reduces this pressure to a workable level. A regulator must be used in conjunction with an LP tank or the risk of explosion will occur. The POL valve is the connector that goes between the regulator and the tank. New model grills are equipped with a new style POL valve that is connected to the LP tank with a large Acme type nut.


The regulator is factory set at a specified outlet pressure of 11 inches of water column and is generally factory sealed and not adjustable. Do not try to adjust. The regulator can be checked by measuring the pressure with a manometer.


Vent Hole

There is a vent hole on top of the regulator. Check that it is clear of dirt and debris. If the hole is plugged, erratic and dangerous burning may result.

O-ring Seal

Before attaching the regulator to the cylinder, inspect the rubber O-ring on the POL fitting. Do not operate the grill if the O-ring is damaged or missing. Seal damage is common and we recommend replacement of the seal when the burner is replaced or when the seal is damaged. Cracks, splits or distortion will allow gas to escape. Additionally, the seal should be soft, pliable, and protrude slightly from the brass POL valve.

Chew Marks

Critters like good barbecue too! The hose should be kept clean of grease and food drippings which attract squirrels and other animals. The animals will often eat the drippings on the hose and chew into the hose lining trying to get the last taste. Try cleaning the hose with an ammonia cleaner solution to minimize the attraction.

Testing for Leaks

  1. Mix a 50/50 solution of liquid dish soap and water
  2. Connect the LP cylinder
  3. Make sure the control valves are OFF
  4. Brush the soap solution over the POL valve and all piping and hose connections
  5. Turn on the cylinder valve and listen for leaks, and look carefully for soap bubbles being formed at the connections which indicates leaks

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Please note: The information provided is not intended to take the place of the owners manual that was supplied with your grill. Specific safety, repair and maintenance information varies between grill models and brands. Always refer to your owners manual.