What i do to verify that the gas valve is doing its job i get a BBQ lighter i wait for the furnace to cycle and i pit the lighter near the burners and if that works i know its the igniter but there's other ways
Hi, First make sure you have a gas supply, so check another appliance that uses gas and make sure it works. Also, verify the shut off valve on the furnace gas supply line is in the "on" position. If all that is good then you will want to check that there is power going to the gas valve from the control board. The easiest way to do this is locate the wires and use a clamp meter around one of the wires and see if there is an amp draw when the "call to ignite" happens. If you do not have a clamp meter, then you can use a multimeter and check that those wires have 24 v going to the valve when the "call to ignite" happens. One thing to note is the "call to ignite" will only last about 4 seconds, so make sure you have your meter hooked up and looking at it, so you don't miss that window. If you do not have power going to the valve, then its the control board or some other wiring issue. If you do have power going to the valve then the valve is bad and will need to be replaced. I hope this helps!
Strange how when you watch these videos most of the time it is the ignitor. Had to replace ignitor and flame sensor since they were made together. Flame shuts off. I suppose the white wire us next. There is no water reserve, no tanks. Glows red shuts off, did clean the burners and jets.
What i do to verify that the gas valve is doing its job i get a BBQ lighter i wait for the furnace to cycle and i pit the lighter near the burners and if that works i know its the igniter but there's other ways
Hi,
First make sure you have a gas supply, so check another appliance that uses gas and make sure it works. Also, verify the shut off valve on the furnace gas supply line is in the "on" position. If all that is good then you will want to check that there is power going to the gas valve from the control board. The easiest way to do this is locate the wires and use a clamp meter around one of the wires and see if there is an amp draw when the "call to ignite" happens. If you do not have a clamp meter, then you can use a multimeter and check that those wires have 24 v going to the valve when the "call to ignite" happens. One thing to note is the "call to ignite" will only last about 4 seconds, so make sure you have your meter hooked up and looking at it, so you don't miss that window. If you do not have power going to the valve, then its the control board or some other wiring issue. If you do have power going to the valve then the valve is bad and will need to be replaced.
I hope this helps!
Strange how when you watch these videos most of the time it is the ignitor. Had to replace ignitor and flame sensor since they were made together. Flame shuts off. I suppose the white wire us next. There is no water reserve, no tanks. Glows red shuts off, did clean the burners and jets.
Are you saying the burners ignite and then shut off? Or do the burners never ignite?