By James Clark

A gas log fireplace connects to a liquid propane or natural gas supply for fuel. The relatively simple design of the fireplace consists of a burner surrounded by faux logs with an ignitor connected to the burner. Ad adjustable control valve lets you increase or decrease the flames by letting more gas flow to the burner. If you have problems with your gas log fireplace, try troubleshooting the unit to resolve minor problems before calling for a repair technician.

Troubleshoot the control valve on the gas fireplace to solve basic problems.

Step 1

Press and turn the control knob on the gas fireplace to listen for the hiss of gas, which also gives off a distinctive odor. If you cannot detect gas, check the propane tank on a liquid propane system or contact your natural gas provider to determine if there is an interruption in service.

Step 2

Follow the path of the flexible tube from the gas fireplace to the gas line to confirm there are no kinks, bends or cracks in the tube.

Step 3

Press the ignitor button while holding the gas valve control knob. If you do not see a spark on the ignitor tip next to the burner, the ignitor may be defective and must be replaced.

Step 4

Shut off the gas valve control knob and wait 10 minutes for the gas to clear.

Step 5

Poke the tip of a pin or small nail into each of the holes around the rim of the burner under the log assembly to clear the holes and remove any clogs, such as carbon build-up.

Step 6

Wipe the end of the pipe on the control valve with an old cloth dipped in rubbing alcohol, which is a mild solvent that helps remove clogs. Wait 10 minutes for the alcohol to evaporate completely before trying to light the fireplace. If it still will not light, contact a qualified gas repair technician to test the appliance.