🔥 100165930 Lochinvar Flame Sensor With Gasket – Replacement for PLT3022
The Lochinvar 100165930 Flame Sensor with Gasket Kit is an OEM-quality replacement part for Knight series boilers. Designed to provide reliable flame detection, this sensor ensures safe and efficient burner operation. The kit includes the flame sensor and gasket for easy installation and secure fit.
✅ Key Features
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✅ Direct Replacement for PLT3022, PLT2022, and 100165897
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✅ OEM-quality flame sensor with included gasket
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✅ Compatible with a wide range of Lochinvar Knight series boilers
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✅ Monitors burner flame and signals the control module for safe ignition
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✅ Durable construction for high-temperature operation
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✅ Easy installation with included mounting hardware
📊 Specifications
| Specification | Detail |
|---|
| Manufacturer |
Lochinvar |
| Part Number |
100165930 |
| Old Part Number |
PLT3022 |
| Included Components |
Flame sensor + gasket |
| Compatible Models |
Knight series boilers including 400, 501, WH, WB, AW, XP, SNA, SNR, KB, KBN, AWN, AWL, XPN, OXN, OKN, OKL series (see full model list above) |
| Replacement For |
PLT3022, PLT2022, 100165897 |
| Function |
Detects flame presence and signals ignition control |
| Application |
Residential and commercial Knight series boilers |
🔁 Cross Reference / Compatible Replacements
| Replaces | Brand / Part |
|---|
| PLT3022 |
Original Lochinvar Flame Sensor |
| PLT2022 |
Legacy Replacement Part |
| 100165897 |
OEM Sensor for Knight Series |
⚠️ Common Symptoms / When to Replace
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Boiler fails to ignite or maintain flame
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Frequent lockouts due to flame detection issues
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Intermittent flame sensing or weak flame signal
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Visible soot, corrosion, or damage on the sensor rod
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Inconsistent heating performance
Replacing the 100165930 flame sensor restores proper ignition monitoring and prevents unnecessary system downtime.
💬 Frequently Asked Questions (FAQ) ❓
Q: Which boilers does this flame sensor fit?
A: Fits Lochinvar Knight series boilers, including models such as 400, 501, WH, WB, AW, XP, SNA, SNR, KB, KBN, AWN, AWL, XPN, OXN, OKN, OKL series (full list above).
Q: Does this include the mounting gasket?
A: Yes — the kit includes the flame sensor and gasket for proper installation.
Q: What causes flame sensors to fail?
A: Accumulation of soot, oxidation, high heat stress, or mechanical damage.
Q: Will replacing this sensor fix burner lockouts?
A: Yes — replacing a faulty flame sensor resolves most flame-detection related lockouts.
Q: Is this a direct replacement for PLT3022?
A: Yes — it replaces PLT3022, PLT2022, and 100165897.
🛒 Shopping Tips
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Verify your boiler model and series before purchasing.
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Inspect the existing flame sensor for cracks, corrosion, or soot buildup.
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Ensure the included gasket is installed to prevent leaks and maintain proper operation.
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Handle the sensor carefully; the sensor rod is fragile.
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Keep a spare sensor on hand for frequent maintenance or multiple boilers.
