OEM Carrier Flame Sensor Assembly LH33WZ005 for Model PY1PEA048120AFBA

This is the genuine OEM Carrier flame sensor assembly (part #LH33WZ005) factory-specified for the Carrier PY1PEA048120AFBA packaged heat pump unit. The flame sensor — also called a flame rod — monitors the burner flame by passing a small DC current through the ionized gas. When the control board detects that signal, it confirms safe ignition and allows the gas valve to stay open. A failed or carbon-coated sensor causes the board to cut gas within 5–8 seconds of ignition, sending the system into lockout. Repeated no-heat calls, error codes for flame failure, or a unit that lights briefly then shuts off are the classic signs this part needs replacement.

• Specs: OEM Carrier part #LH33WZ005 | 64.5" (64 1/2") wire lead assembly | Factory Authorized Parts (FAP) | Flame rod with bracket and wiring harness included
• OEM vs Generic: Genuine Carrier FAP sensors are built to exact rod-diameter and alloy specifications for precise microamp signal output. Aftermarket sensors may produce inconsistent readings, causing nuisance lockouts or, worse, masking a real flame-out condition.
• Install difficulty: 2/5 — Disconnect power and gas before servicing. Tools needed: 1/4" hex driver, needlenose pliers, multimeter (microamp mode to verify output). Always confirm burner compartment is cool before reaching in. Photograph wiring connections before removal.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before 3PM local time.

Compatibility: Designed for the Carrier PY1PEA048120AFBA packaged unit. Cross-referenced to Factory Authorized Parts (FAP) and Totaline product lines under the same part number. Verify your existing sensor part number on the unit's wiring diagram or data plate before ordering. Need help confirming fitment? Our HVAC parts specialists verify compatibility before your order ships.