Troubleshooting a Hot Surface Ignitor (HSI)
The igniter is positioned in the flow of gas entering the burners. When the thermostat calls for heat, 24 volts are sent to the electronic ignition control module, which energizes the furnace blower and other systems and sends 120 volts to the HSI.
How do I know if my furnace spark ignitor is bad?
4 Signs of a Faulty Furnace Ignitor
The Furnace Stops Running. When a furnace won’t run at all, check for a bad ignitor. Your Furnace Blows Chilly Air. Unless you’ve set your thermostat to COOL, your furnace should not blow cold air. Does Your Furnace Short Cycle? A No Glow Ignitor. We Can Replace Your Furnace Ignitor.
Are furnace ignitors universal?
This universal ignitor is a replacement part for use in gas-fired appliances like furnaces, water heaters, and boilers, compatible with over 150-OEM models.
How many volts are generated in the spark ignition circuit?
How many volts are sent to a furnace spark igniter? 10,000 volts.
What does 100% lockout mean on an ignition module?
pilot fails to light—it will try continuously to light the pilot. Remember that LP-fired IID systems must always employ 100% lockout, which means that there is a finite trial for ignition period, not a continuous trial for ignition.
How many ohms Should a furnace ignitor have?
Resistance 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.
Do furnace ignitors go bad?
If your furnace won’t turn on (or in some cases, the furnace will seem to start working but won’t actually light), won’t blow warm air, starts and stops, or consistently trips breakers in your house, a bad furnace ignitor could be the culprit.
Can hear your furnace click on but it does not fire up?
The Pilot Light (Faulty Ignition Sensor) 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.
Why is my igniter not working?
Dead batteries are one of the most common causes of igniter issues. If you have a battery-powered spark generator, the first thing to try is replacing the battery. Concerns about battery life are not applicable to piezo igniters. Replace the battery by turning the igniter button cover counterclockwise to remove it.
What makes the spark in a lighter?
Stored under pressure inside the lighter in its liquid form, butane quickly converts to a gas when depressurized. When the friction wheel on a lighter is turned by the thumb, a tiny stream of butane gas is released, which is then ignited by a spark.
How long does piezo ignition last?
How long does it last? While matches and lighters must be replaced or refilled, matchfree ignition systems are built to last for life. While malfunctions do occur, the average piezo lighter lasts for a minimum of ten years, far longer than even a whole box of matches!
Why does my gas stove spark igniter not work?
The gas igniter wire is loose, broken, shorted, damaged: If there is no spark at all and if the appliance has power, the problem may be a loose or disconnected wire between the control module and the igniter, or a wire that has shorted.
