TEST 1: Testing The Ignition Coil For Spark
- Remove the ignition coil from its place on the valve cover.
- Connect your spark tester to the ignition coil.
- Reconnect the ignition coil to its electrical connector (if you disconnected it to remove it).
- Ground the spark tester with a battery jump start cable directly on the battery negative (-) terminal.
What do you use to check ignition spark?
Checking ignition spark is essential to keeping your engine running healthy. We use an in-line ignition spark tester to test for ignition spark. This video will also show you how to use a spark tester.
How does a direct spark ignition system work?
The Direct Spark Ignition (DSI) System is flame sensing and has an automatic valve. The system is controlled by a module that sends a spark signal to the electrode (igniter), opens the gas valve and then the gas ignites. Once list, the flame recognition senses the flame, and the electrode stops sparking. Then, what is a direct spark ignition?
What do you do if your Ignitor is not working?
If you see that your hot surface ignitor is not turning on, take a resistance reading on the ignitor. First, open up your furnace so you can access the ignitor. The ignitor is located behind the burner assembly. Next, use a multimeter to probe the ignitor connector.
What to do when the ignition module fails to ignite?
4. Sense the presence of a main burner flame and discontinue ignition spark. If the burner fails to ignite within the trial-for-ignition period, the module goes into safety lockout. 5. If there is a loss of power, the systems will shut down safely. Startup is initiated when power is restored. 6.
What is a combination spark igniter?
How to turn off gas supply cock?
What controls are required for DSI?
Do appliances have igniters?
Does the S89A have a spark generator?
How do you test a direct spark igniter?
1:052:23Lennox # 73K38 - Continuity Test (Gas Furnace Ignitor) - YouTubeYouTubeStart of suggested clipEnd of suggested clipAlso set the dial to the lowest ohms of resistance to test for continuity take the probe from theMoreAlso set the dial to the lowest ohms of resistance to test for continuity take the probe from the multimeter. And touch it to one of the terminals. Now touch the second probe to the remaining.
How do you test an igniter with a multimeter?
Test The Ignitor With A Multimeter Set a multimeter to the lowest possible resistance test and place the probes onto tips of the plug for the ignitor. If the multimeter shows infinity or stays at zero, the ignitor no longer works and must be replaced.
How does a direct spark igniter work?
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.
How do you test a pilot igniter?
1:062:01Furnace Not Igniting or Heating? Igniter Testing, Repair - YouTubeYouTubeStart of suggested clipEnd of suggested clipItself now use a probe to touch one of the igniters terminals and the second probe to touch theMoreItself now use a probe to touch one of the igniters terminals and the second probe to touch the other terminal. If the meter reading shows a result between 50 and 400 ohms of resistance.
What is the ohm reading on an ignitor?
between 37-68 ohmsResistance should be between 37-68 ohms. If the igniter and the surrounding air are at about 70°F and the igniter wires are not connected to any other electrical components, the resistance of the igniter should not exceed 75 ohms. If it does, the igniter should be replaced.
How many ohms should a hot surface ignitor have?
30 to 75 ohmsA good silicon nitride hot surface ignitor will have a resistance of 30 to 75 ohms. Greater than 75 ohms indicates a failing or failed hot surface ignitor. If you get 0 or ∞ or no reading at all, it mean that the resistance is broken, so the igniter is broken and should be replaced.
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).
What is normally used for the ground terminal on a spark igniter?
What is normally used for the ground terminal on a spark igniter? The burner assembly.
How do you test for flame rectification?
In a nutshell, the flame rectification system is an electrical process that causes a low level DC current to be conducted from the flame rod through the flame, and back to ground. Technicians can measure this flame current by placing a meter that measures DC microamps in series with the flame rod.
How do I know if my furnace spark ignitor is bad?
Here are a few indications that you have a faulty ignitor.No Cold Air. ... The Furnace Won't Come On. ... The Furnace Suddenly Stops Blowing. ... Starts, Then Stops, Then Starts Again. ... Tripping the Breaker More Than Once. ... I Hear the Click, But Nothing Happens. ... Flame Sensor Problems. ... Short Circuit.More items...•
How do you test a spark ignition module?
0:1210:20How to test an ignition coil/module with a test light (distributor ignition)YouTubeStart of suggested clipEnd of suggested clipTest light with an air gap going to ground go ahead and crank it. Please. As you can see there is noMoreTest light with an air gap going to ground go ahead and crank it. Please. As you can see there is no spark. The next step is to check coil positive and coil negative while we're cranking.
Should a hot surface ignitor have continuity?
0:412:22York # 02532625000 - Continuity Test (Gas Furnace Ignitor) - YouTubeYouTubeStart of suggested clipEnd of suggested clipThis can be difficult to see as even a small break can cause an igniter to fail.MoreThis can be difficult to see as even a small break can cause an igniter to fail.
Troubleshooting Direct Spark Ignition Systems - Appliantology.org
Flame Rectification Is Vital Knowledge For Gas Heat Troubleshooters. This article deals with flame rectification as it applies to direct spark ignition (DSI) modules. They are manufactured by a few different companies — Fenwal, Honeywell, Robertshaw, and White Rodgers, to mention a few. The proce...
Sparker Won't Spark When Lighting a Direct Spark Ignition Crystal Fire ...
This video shows the troubleshooting process for Crystal Fire Plus Direct Spark Ignition System burners when the ignitor does not spark.ABOUT OUTDOOR GREATRO...
Question: How do I troubleshoot my Gas Furnace Spark Ignition Control ...
I would like to suggest that you check all ground wire connections to make sure you do not have any burnt wires or loose wires. I would like to suggest that you make sure you are getting a constant 24 to 28 volt reading between the W and C (common) terminals on your control board from the thermostat when the thermostat is calling for heating.
Ignition System Diagnosis and Service - GoMoG
1 • CHAPTER 20 OBJECTIVES • Describe the procedure used to check for spark. • Discuss what to inspect and look for during a visual inspection of the ignition system.
What is direct spark ignition?
What is a direct spark ignition system? The Direct Spark Ignition (DSI) System is flame sensing and has an automatic valve. The system is controlled by a module that sends a spark signal to the electrode (igniter), opens the gas valve and then the gas ignites. Once list, the flame recognition senses the flame, and the electrode stops sparking.
How does a spark ignition 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.
How to test a hot surface ignitor to see if it is bad
If you see that your hot surface ignitor is not turning on, take a resistance reading on the ignitor.
How to check for power at the furnace ignitor
In the USA, your furnace’s ignitor will be powered by 120 volts AC when it needs to turn on.
How to replace a furnace ignitor
To replace a furnace ignitor, you first need to shut off power to your furnace. Next, open up the burner compartment on the furnace. The ignitor will be in front of one of the burners, deep inside the furnace.
What is a combination spark igniter?
Combination spark igniters and flame sensors that are mounted on a common bracket; and. A single electrode igniter-sensor. Generally speaking, the separate flame sensors and spark igniters are used together, or the single electrode igniter-sensor is used alone.
How to turn off gas supply cock?
1. With the system power off and the temperature controller set to call for heat, manually shut off the gas supply cock. 2. Turn the power on to energize the control module; begin spark ignition; immediately start timing. 3. Determine the number of seconds to safety lockout (spark cutoff).
What controls are required for DSI?
Gas Controls For DSI. The American National Standards Institute (ANSI) requires that all new DSI-equipped gas-fired appliances must have dual gas controls for positive shutoff of the main burner gas. This requirement can be met by using any of the following methods:
Do appliances have igniters?
However, some appliances use a different combination of these components; for example, an igniter-sensor for ignition and a separate flame sensor and spark igniter for flame sensing. Whatever the combination, the system must have components, or a combination of components, for spark ignition and flame sensing.
Does the S89A have a spark generator?
Note: The S89A does not include a spark generator circuit. The S89A has an internal relay for activating a separate spark generator for ignition of the main burner. 3. Open the main valve (s) of the gas control (s) to allow gas to flow to the main burner. 4.
