How do you light a Robertshaw gas valve?
Hold lighted match at pilot burner. CAUTION: If pilot lights without depressing gas control knob, replace control. Depress and hold gas control knob down completely and light the pilot. Continue to hold the gas control knob down for about one (1) minute after the pilot is lit.
How can you tell if the gas valve is bad?
If 24 volts is coming from the board to the gas valve terminals and you don’t hear that little clicking noise the internal valve makes, you could have a bad gas valve. To double-check, take the leads off to the gas valve and check there. Got 24 volts? Then something downstream of that 24 volts is not working.
How do you adjust a Honeywell gas valve?
- Remove the cap screw covering the pressure regulator screw located on the front or top of the Honeywell gas valve, depending on the model.
- Turn the screw clockwise to raise the pressure of the water heater.
- Turn the screw counterclockwise to lower the pressure of the water tank.
What causes a gas valve to go bad?
The valve itself may have simply worn out or may be damaged due to basement seepage or submersion. Alternately, one of the electronic gas ignition components or a glitch in the safety circuit may be to blame. If your furnace has a standing pilot light, the thermocouple could be worn out.
How do you test a gas control valve?
How to Check the Furnace Gas Valve With a Multimeter
- Turn off the furnace at the wall control.
- Take out the bolts in the service panel on the side of the furnace using a nut driver.
- Pull the wires off the gas valve terminals.
- Turn the test control on the multimeter to “mV,” which stands for millivolt.
What happens if gas pressure is too low?
If the gas pressure is too low, your furnace’s efficiency will go down. Not only that, but it will lead to a greater amount of condensation of burned gases. That is because the proportion of air in the air-fuel mixture will be too great.
How do you test a gas valve with a multimeter?
Hold each tester wand on the multimeter to one of the terminals on the gas valve. A normal reading will be in the range of 145 to 195 millivolts. Readings outside this range indicate the gas valve is defective and must be replaced. Furnace gas valves cannot be repaired.
Can a gas valve be adjusted?
Adjust the low-pressure valve to 1.6 WC for natural gas. Check the pressure setting recommended by the manufacturer. When you have it, slip a flathead screwdriver into the valve. Turn it clockwise to raise the pressure and counterclockwise to lower it. The proper pressure can vary from furnace to furnace.
How do you fix low gas pressure?
If it’s not on the operator’s end, turn off all extraneous uses of natural gas. For instance, if you have a gas stove, hot water heater, fireplace, and house heater all working at once, that might result in low pressure. Leave on only one device at a time and then check the pressure again to see if it rises.