My ODS Pilot Won't Light

An ODS, or oxygen detection safety, is used in many vent-free gas products. It has three parts: an oxygen-sensing pilot burner, a thermocouple and a safety shutoff. The pilot flame goes out when there are insufficient levels of oxygen or gas. This causes the ODS to malfunction. Troubleshoot the problem before calling a repair provider. Refer to your owner's manual for information about the location of parts.

Needle or thin wire

Instructions

- 1
  Press the ignitor switch. If there is a spark but no ignition from the ODS pilot, the gas may be turned off. If you don't detect a gas smell, the gas is off.
- 2
  Turn the control knob to the on position. Push the control knob in completely; it may not be in the proper position.
- 3
  Release any air from the lines by holding down the control knob; then try to ignite the ODS pilot again.
- 4
  Inspect the ignitor cable. If it is pinched by any metal or tubing, it may not be operating properly. Unpinch the cable with your hand.
- 5
  Keep ignitor cable dry. If it gets wet, it won't light the ODS pilot.
- 6
  Operate your ODS in an altitude below 4,000 feet. The air supply will not be sufficient about 4,000 feet.
- 7
  Inspect the orifice to the ODS. If it is clogged with ash or debris, you may have a problem with ignition. Clear the orifice with a needle or thin wire.
- 8
  Check with your gas supplier to make sure your gas supply is sufficient and without additives. Also ask them to check the gas pressure to make sure it is adequate.

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