🔥 Flame rectification is how a boiler proves the flame is lit The PCB sends AC to the electrode ➡️ the flame conducts & rectifies it into a tiny DC current (measured in µA) ✅ A good flame signal is usually 2–5 µA. ⚠️ This one’s only 1.5–2 µA — right on the edge, causing lockouts 👨‍🔧 I advised a full service strip down: burner, sump & electrodes cleaned, then retest #GasEngineer #BoilerBreakdown #HeatingTips #Boilerrepair | Heating & Plumbing Doctors - Coventry
0:32
🔥 Flame rectification is how a boiler proves the flame is lit The PCB sends AC to the electrode ➡️ the flame conducts & rectifies it into a tiny DC current (measured in µA) ✅ A good flame signal is usually 2–5 µA. ⚠️ This one’s only 1.5–2 µA — right on the edge, causing lockouts 👨‍🔧 I advised a full service strip down: burner, sump & electrodes cleaned, then retest #GasEngineer #BoilerBreakdown #HeatingTips #Boilerrepair | Heating & Plumbing Doctors - Coventry
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What is Flame Rectification and How Does a Flame Sensor Work? (Part 1) - American Veteran Air Conditioning, LLC
What is Flame Rectification and How Does a Flame Sensor Work? (Part 1) - American Veteran Air Conditioning, LLC
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Understanding flame rectification... It starts with an AC signal that is then converted to a DC signal. The flame becomes part of the circuit to help with this process. ***FYI, the lift hadn't moved yet, I was wearing a harness during the work.*** #flamerectification #hvac #flamesignal #hvaceducation #hvacknowledge #hvacsystem #gasfiredheating #hvaclearning #hvacaf #hvactechnician #hvacapprentice | HVAC Know It All
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Understanding flame rectification... It starts with an AC signal that is then converted to a DC signal. The flame becomes part of the circuit to help with this process. ***FYI, the lift hadn't moved yet, I was wearing a harness during the work.*** #flamerectification #hvac #flamesignal #hvaceducation #hvacknowledge #hvacsystem #gasfiredheating #hvaclearning #hvacaf #hvactechnician #hvacapprentice | HVAC Know It All
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Fire alarm! See how Metasys®-integrated systems respond. And learn more about new Metasys integrations for lighting, security and fire protection in our August 29 webinar: https://on.jci.com/2O8grrJ | Johnson Controls
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Fire alarm! See how Metasys®-integrated systems respond. And learn more about new Metasys integrations for lighting, security and fire protection in our August 29 webinar: https://on.jci.com/2O8grrJ | Johnson Controls
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We're continuously delivering an innovative suite of proven solutions and services tailored for critical facilities like data centers, even in the most challenging environments. That's why leading data center providers worldwide choose to partner with us. https://on.jci.com/4lYmlw9 | Johnson Controls
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We're continuously delivering an innovative suite of proven solutions and services tailored for critical facilities like data centers, even in the most challenging environments. That's why leading data center providers worldwide choose to partner with us. https://on.jci.com/4lYmlw9 | Johnson Controls
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Real-world performance, using less energy and requiring less maintenance. Have you met the YORK YZ chiller? https://on.jci.com/2nYEz4R | Johnson Controls
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Real-world performance, using less energy and requiring less maintenance. Have you met the YORK YZ chiller? https://on.jci.com/2nYEz4R | Johnson Controls
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Watch to find out how we stay on the cutting edge of innovation. One way is through strong partnerships with our engineering teams, which ensures our customer get the right solutions to fit their unique needs. | Johnson Controls
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Watch to find out how we stay on the cutting edge of innovation. One way is through strong partnerships with our engineering teams, which ensures our customer get the right solutions to fit their unique needs. | Johnson Controls
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Are you checking this? Ignition controls produce an AC voltage output on the flame sense terminal. This defective control had 1-2 volts AC to ground. This is not enough to produce the type of micro amps needed in the rectification process to sustain flame. The new control had 90v to ground. Look for this issue after cleaning a flame sensor and the burner still won't light off. Sealed Unit Parts Co., Inc.. Mag Jumper coming in clutch here. #hvac #hvacr #hvaclife #hvacservice #hvactech #hvacjourne
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Flame rectification depends on AC polarity relative to ground, so reversing transformer polarity can prevent the control from seeing the flame signal even though a flame is present. #hvac #hvaclife #hvactech
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