I would give about an 80% chance that the board is not putting out the proper voltage and should be replaced. Other problems could be a bad spark wire or connection or poor positioning of the electrode. It is not the flame sensor or it would light for a few seconds and then go out.
Why does my furnace not ignite sometimes?
If your furnace won’t ignite, the source of the issue may be a broken flame sensor. The sensor is responsible for turning off the gas burners to avoid gas buildup. Once this component starts to malfunction, it may stop the burners from igniting altogether.
Why is my furnace clicking but not turning on?
You Have a Faulty Ignition Sensor (Pilot Light)
The pilot light or ignition sensor is usually the most common issue when your furnace will not ignite. This is typically the problem if you can hear your furnace click on but it does not fire up.
How do you know if your furnace ignitor is bad?
Your furnace won’t run: The most obvious sign that your ignitor is bad is that it won’t ignite, and this generally manifests itself in your furnace failing to run when you activate it. One word of caution, though: this can also be caused by other issues, some of which are electrical.
What is intermittent pilot ignition?
Intermittent Pilot Ignition is an electronic system, which uses an electrode to ignite the pilot gas. In turn, the pilot flame lights the main burner gas. The term Intermittent is used because the pilot burner flame is only present when the main burner is operating.
How do I clean my furnace ignitor sensor?
Quote from the video:
Quote from Youtube video: So if you have a situation like this what you have 90% of the time is just a dirty flame sensor. So we'll go through the steps on how to clean it. So the right side of the furnace.
How do you test a flame sensor?
Quote from the video:
Quote from Youtube video: Then set your meter to measure. Microamps. As soon as the flame is established. You should see a microamp reading on your meter. My manual actually says i'm looking for between one and four microamps.
Can you manually light a gas furnace with electronic ignition?
If your furnace is equipped with an electronic igniter, you cannot light the furnace manually. However, you may be able to get the furnace working by turning off the igniter and resetting it. Find the paperwork for your particular furnace to locate the reset button or switch.
How do you test a spark ignition furnace?
Quote from the video:
Quote from Youtube video: So we're going to turn the power on our multimeter exceptive volts AC.
What is direct spark ignition?
Anyone who has ever started a car has put Direct Spark Ignition to work. The car’s ignition coil generates a high voltage charge that arcs across the spark plug, directly igniting the fuel/air mixture in the engine. Such a spark is also used in most appliances to directly light the flammable gas at the burner assembly.
What is direct ignition in a furnace?
Quote from the video:
Quote from Youtube video: The spark inside the igniter lights the gas which creates the flame. And done the direct spark igniter uses voltage to spark which lights the main.
How do you troubleshoot a spark ignition?
Quote from the video:
Quote from Youtube video: This right here is actually the flame sensor the flame sensors job is only not since the plane but to actually put anywhere should say 90 to 130 volts into the flame. And then it's going to rectify.
How do I reset my electronic ignition furnace?
How to Reset an Electric Furnace
- First, turn off the power supply to the furnace by turning off the breaker in the circuit box.
- Locate the reset button on the furnace and press it to reset the furnace. …
- If the button is popped up, press it down.
- Return the cover to the blower compartment and turn the power on.
What does direct ignition mean?
In ignition system. …a distributor-less ignition system, or direct-ignition system, in which a high-voltage pulse is directly applied to coils that sit on top of the spark plugs (known as coil-on-plug).
How does a direct ignition coil work?
As the engine rotates, the distributor shaft cam turns until the high point on the cam causes the breaker points to separate suddenly. Instantaneously, when the points open (separate) current flow stops through the primary windings of the ignition coil. This causes the magnetic field to collapse around the coil.
What is the difference between ignition coil and direct ignition coil?
Quote from the video:
Quote from Youtube video: Because they have more time to recharge. They can produce more voltage. Even at higher rpms leading to better and more reliable operation and spark at high rpms.
What is a direct ignition coil boot?
An ignition boot is also called a coil boot or a spark plug boot, and a lot of vehicles now have one ignition coil, which creates voltage, that mounts on top of each spark plug. The “boot” is what connects the ignition coil to the spark plug.
When should I replace my coil boots?
Quote from the video:
Quote from Youtube video: So if we replace the spark plug. And don't replace the boot. With a matter of time the carbon from that boot will transfer back to the spark plug.
Can you replace the boot on a coil pack?
Quote from the video:
Quote from Youtube video: It's very important to replace the boots on the ignition coil at the same time as replacing the spark plug one of the primary. Reasons is a phenomenon called carbon tracking.
