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LENNOX Flame Sensor: Mfr Part # 18G89 - Replacement HVACR Controls, Switches & Thermostats
LENNOXReplacement HVACR Controls, Switches & Thermostats

LENNOX Flame Sensor: Mfr Part # 18G89

LENNOX Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: Flame Sensor.

SKU 3G-OTH-76354

Brand
LENNOX
Item
Flame Sensor: Mfr Part # 18G89
Category
Replacement HVACR Controls, Switches & Thermostats
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

LENNOX
Manufacturer Part Number
18G89
Product Type
Flame Sensor

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LENNOX Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

LENNOX Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: Flame Sensor.

Frequently Asked Questions

What is a LENNOX 18G89 flame sensor used for?

The LENNOX 18G89 flame sensor detects burner flame presence in gas-fired HVAC systems. It signals the control board to keep the gas valve open, ensuring safe combustion. This replacement part is critical for residential and commercial furnaces, boilers, and rooftop units.

What are the specifications of the LENNOX 18G89 flame sensor?

The LENNOX 18G89 is a flame sensor with manufacturer part number 18G89. It is designed as a direct replacement for compatible LENNOX HVAC equipment. The sensor rod detects flame rectification current; exact electrical ratings should be verified against the original part.

Where to buy a LENNOX 18G89 flame sensor worldwide?

3G Electric supplies the LENNOX 18G89 flame sensor to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this replacement HVACR control.

How to install a LENNOX 18G89 flame sensor?

Turn off power and gas to the furnace. Remove the old sensor, typically held by one screw. Install the LENNOX 18G89 in the same position, ensuring the rod is in the burner flame path. Reconnect the wire, restore power, and verify flame signal with a multimeter.

Used in

Common applications for LENNOX
Commercial HVAC maintenance — Lennox blower wheel 31G67 for replacing worn fans in rooftop units
Gas furnace repair — Lennox induced draft blower 56W68 for exhaust system replacement in residential furnaces
Thermostat upgrade — Lennox 24Z12 for manual control in heat and cool applications in office buildings
Safety system replacement — Lennox limit switch 26G78 for over-temperature protection in industrial heaters
Heat exchanger retrofit — Lennox heat exchanger assembly 96L74 for furnace repair in manufacturing facilities

LENNOX Products

3G Electric supplies LENNOX replacement hvacr controls, switches & thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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