furnace not working- clicking sound but no ignition help please cold kids!?

Question

this is the first time since April that we have tried to turn the furnace on. no air blows, the ignition clicks but does not ignite. its saturday night so i can't get anyone here till monday. any suggestions would help
i have to kids cold and in need of heat. thanks
lennox pulse electronic start

Answer 1

It is not the pilot light, as the Pulse does not have a pilot. It works using a sparkplug. I doubt you turned off the gas for anyreason, so that is unlikely the problem. I have the same problem, but no answer. Lenox has no information on w/site . Search the Lenox site for Pulse, and you get zip, it's likde the machine doesn't exist. One answer I found suggested replacing the sparkplug, but I am unwilling to try that without some documentation on how to do it. Today is Monday, did you get a Service man?? What did he say?

Answer 2

1. if this is an oil furnace, then you will have to prime it. There is a button on the burner that you hold for a few minutes to pump the oil into the system. After that, it should light. There are some instructions on the burner. Take a flashlight, they are small.

2. If this is a gas furnace, it could be a few things. First, make sure the gas is on. Look at the gas pipe. There is a valve that has a small bar for a handle. The bar should be parallel to the pipe. This should be within a few feet of the furnace.

If this is a gas furnace then it must be a hot air system. That blower may turn on after the furnace is on. If it is an oil system, and hot water at that, check to see that the electrical switch to the burner is on. It may not blow if it sees that it is not primed.

With a little more information, it would be easier to diagnose and fix the problem.
What kind of furnace is it
What fuel are you using?
If it is oil, is the valve to the furnace on at the tank and at the furnace?
Is there a pressurized air system on this?
Is there a fuel pump?

If it is gas, and you open the front panel, you will see the burners. Don't touch them. Can you see the spark?
Are the spark lines connected properly? Do not touch the spark wires (even if you can identify them) while the furnace is on.

One thing to do later in this is to turn the furnace off, open it up, and vacuum out all the dust from the burner area. Turn it on again, and see if it helps. Do not bend anything in the adventure.

Answer 3

Oil or gas? If you ask that after her telling you it is a lennox pulse electronic start unit then you should not answer the question, But for you who want to know, then the answer is GAS. First check to make sure you have gas. Second you hear clicking but no ignition. See if the pilot lites. If not you have a gas problem. Could be something as simple as a spiders web in the pilot tube. If it does and the unit stills clicks then you may have a problem with your flame sensor. If it is not the gas problem then call a service tech that can work on lennox, they can be tricky, especially the pulse units. They seem to be sensitive. Hope that helps.

Answer 4

Turn off the breaker to the furnace and then get some steel wool and clean the ignitior rod. Turn the power back on and then try to turn on the furnance, see if you can spot the arc from the ignitor, if you can then either it is not getting the gas, or the ignitor is not catching the gas flow and firing up.

good luck with it.

Do you have a handy man neighbor that could take a look at it for you?

A lot of HVAC companies have 24 hr service and will come at any time.

Answer 5

ensure the gas is turned on. And check the breakers, sometimes a furnace runs on more then 1 circuit breaker. Check the filter to ensure that its in properly and clean, that the cover is on tight and secure. Other then that with electronic start I do not see how a thermocouple would be causing you problems. Sounds like Gas is not getting to the burners Check the gas valve right on or near the furnace

Answer 6

You must be back East
The gas may have been turned off for the summer.
The little fire that burns all the time (pilot) may have gone out.
It is a little tricky but you can work through it.
You would need matches and a flash light.
The air wont blow till the furnace gets hot.

Answer 7

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Answer 8

Is it a gas or oil furnace? If it is oil, is the oil tank empty? Leave more details and I'm sure someone could help you. If it is oil and the oil tank is empty you can use diesel until you get regular fuel delivery.

Answer 9

What is your digital wall thermostat reading? Can you see the date & temperature? Perhaps your batteries have corroded inside. Pop it open & check your batteries. Add additional information here if none of this works.