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Straight metal probe with ceramic base and wire lead

SUPCO

SUPCO FLS013 Flame Sensor LH33WZ514 LP/NG

SKU CH-YG4J-41B3S

Universal flame sensor with 3-inch straight probe for LP and natural gas direct spark ignition systems

  • Universal flame sensor fits LH-series Carrier units
  • 3-inch straight probe with stud mount installs directly
  • 3-inch hardwired lead connects without adapters
  • Rated for 1800°F rod temperature on LP or natural gas
  • Replaces LH33WZ514, LH33WZ516 and LH680013 models

Universal Flame Sensor for Direct Spark Ignition

The SUPCO FLS013 flame sensor replaces original parts in LP and natural gas systems using direct spark ignition. It carries manufacturer number LH33WZ514 and fits LH series appliances including Carrier models LH33WZ514, LH33WZ516 and LH680013. A fixed bracket and stud mount hold the straight probe in position.

Suited for Technicians Replacing a Single Rod

This sensor suits service technicians who need a direct replacement with a three-inch probe and three-inch hardwired lead. It is not for installers who require a different probe angle, a longer lead, a plug-in connector or compatibility with hot-surface or intermittent-pilot ignition systems.

Steady Operation at High Rod Temperature

The probe withstands a maximum rod temperature of 1,800 degrees Fahrenheit during continuous burner operation. Its fixed mounting and hardwired connection maintain consistent flame signal without the intermittent contact that can occur with removable terminals under vibration and thermal cycling.

Highlights

  • Universal flame sensor fits LH-series Carrier units
  • 3-inch straight probe with stud mount installs directly
  • 3-inch hardwired lead connects without adapters
  • Rated for 1800°F rod temperature on LP or natural gas
  • Replaces LH33WZ514, LH33WZ516 and LH680013 models

Specifications

BrandSUPCO

Questions about this item

Does my furnace need a direct-spark ignition system for the FLS013 to work?

Yes, the sensor is compatible only with direct-spark ignition systems.

Will the 3-inch probe and stud mount fit the LH33WZ516 bracket I already have?

The fixed bracket and 3-inch straight probe match the LH series mounting pattern used on the LH33WZ516.

How can I confirm the sensor is operating correctly after installation?

A healthy flame rod will pass a microamp current to the control board; the burner should stay lit through the full heating cycle.

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