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Aug 1, 2023 · When you turn up the thermostat to initiate your furnace, you might notice a clicking sound before the warm air arrives. That noise comes from the furnace ignitor. As its name implies, the furnace ignitor creates a spark, igniting the gas to heat the air circulating through your home. The ignitor is a critical part of your furnace.
Apr 25, 2022 · Solution: If the draft blower starts – you hear it hum – but the furnace doesn’t ignite, the problem could be caused by a blockage in the vent. This is not super-common, but something to consider if other solutions don’t work. 6. The High Limit Switch is Open.
- First, yes, the igniter is commonly called a hot surface igniter or even a glow plug. When they’re getting power, they begin to glow, eventually be...
- Yes, you can. Great idea, in fact. This furnace troubleshooting step will help you rule out whether the igniter is the cause of the gas furnace not...
- Flash codes are a series of light “blips” using one or two lights. Each furnace’s flash codes are different. They’re also called fault codes. Some...
Sep 17, 2023 · The control board activates the spark igniter or the hot surface igniter, depending on the type of ignition system in the furnace. Step 6: The spark igniter produces a spark to ignite the gas, while the hot surface igniter heats up to a high temperature to ignite the gas. Step 7
- How Do Hot Surface Ignitors Work?
- Symptoms of A Failing Hot Surface Ignitor
- Why Do Hot Surface Ignitors Fail?
- What to Do to Ensure Your System Is Functioning Properly
- HVAC Repair Near Me
Furnace hot surface ignitors are a type of electronic device used in gas furnaces to ignite the gas that powers the system. It is a small device – typically, a silicon carbide element that produces a high voltage when heated. Hot surface ignitors work by converting electrical energy into heat energy. The energy can then be used to open the gas valv...
Hot surface ignitors tend to last ten years or more. Yet, when they fail, they can cause problems ranging from sluggish start-ups to noisy operations. Some common symptoms of a failing hot surface ignitor include delayed ignition or a furnace that takes too long to turn on or shuts off prematurely. Sometimes, the HSI will not heat up at all, leavin...
Like all electrical components, hot surface igniters can fail due to various factors. Common problems with hot surface ignitors include:
When you encounter an issue with your hot surface ignitor, it is crucial to enlist the help of a professional HVAC repair. For one, they will have the expertise and skills to diagnose and repair the problem accurately. Furthermore, they can help you spot any potential problems and make needed repairs before they cause a service disruption. Finally,...
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Feb 15, 2023 · Enter the full model number of the unit in the Repair Clinic website’s search bar for a complete list of parts compatible with the furnace you’re fixing. How a gas furnace functions. 5 reasons why gas furnace starts then stops. Flame Sensor; Pressure Switch; Control Board; Draft Inducer Fan Motor; Air Flow.
Feb 3, 2022 · You could also try testing another gas appliance in your house, such as the stove. If the gas supply seems fine in other appliances, check the supply line for your furnace. If the line is disrupted, your furnace may not have enough fuel to ignite. If you smell gas or believe there might be a gas leak, leave your house and call 911 ASAP.
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Aug 15, 2021 · Blowing Cold Air. Another sure sign that your furnace’s ignitor is bad is that you are getting cold air instead of warm. Unless you have set the thermostat to the COOL setting, the furnace should be pumping out warm air. Thankfully, there’s a faster solution to try. Check the thermostat.
