Lennox Furnace Gas Valve Not Opening

Click here to join today.

Lennox furnace gas valve not opening.

Replaced board gas valve hot surface ignitor flame sensor and tstat we disconnect re and white wire to board l e d is on constant. The gas never flows there s no click from the valve opening and the flame never lights. I have a lennox furnace with a honeywell gas valve gsv8204h1006. The valve will make a chattering sound while its open.

Thermostat is not the issue tried swapping the two and it didn t fix it rollout switches have continuity. It goes away if i give the inlet pipe a slight rap with a wrench. I missed the money s. It goes away.

These furnaces were made between 1982 until the middle 1990s. This is a real time look at how i m keeping warm until the new gas valve comes. Fixing a gas furnace. Any idea why when the signal gets sent to the gas valve to open it doesn t work.

Take out the bolts in the service panel on the side of the furnace using a nut driver. If you re new to tech support guy we highly recommend that you visit our guide for new members. The problem is intermittent in that it does not happen each time the furnace comes on. Sorry about the poor camera work.

What sould we do next. Justanswer is not responsible for posts. In addition to the air flapper valve there is a gas flapper valve also. The valve will make a chattering sound while its open.

Locate the gas valve which is typically near the bottom of the unit positioned next to the pilot light. This valve is in the gas line downstream of the. Tech support guy is completely free paid for by advertisers and donations. Information in questions answers and other posts on this site posts comes from individual users not justanswer.

If you do not have the ability to do these operations safely do not attempt them.