Furnace Gas Valve Pressure Test

Locate the gas valve.

Furnace gas valve pressure test.

The manometer will give the reading in water column in inches. Turn gas on and. A multimeter will be needed to test the switch for continuity. Locate the pressure tap on the gas valve and unscrew the plug.

Testing a gas line for leaks do it yourself how to fix a leaky gas valve and pressure testing on home natural gas lines gas company wont turn on my gas due t. Gas pressure test kit top selected products and reviews yellow jacket 78060 complete test kit 0 35 w c by yellow jacket ritchie in stock. Turn the gas off. Screw back in the gas valve plug using a small amount of pipe dope.

To do this the pressure switch wires are removed and the furnace turned on. Some gas valves will have a pressure tap on both sides while some only have one on the furnace manifold side. Then screw in your manometer. Turn off the furnace at the wall control.

Turn on the furnace and start it. A pressure switch is designed to sense the negative pressure created by the draft inducer motor during the furnace startup and to shut down the furnace ignition if the air pressure is inadequate. Turn the gas back on. Pull the wires off.

The gas valve will have a pressure tap located on it. To test the pressure switch use a multi meter and measure the continuity of the switch as it opens and closes. 52 61 good unit by just another buyer worked great for checking gas flow on a couple heaters that we have. How do you test the gas furnace pressure switch.

Take out the bolts in the service panel on the side of the furnace using a nut driver. Using a meter test if the switch closes. Wait for the unit to cool if it has been in use.