Navien 30009478A NPE Series Exhaust Thermistor Probe – Tankless Water Heater Sensor

Condition: Used – Clean, Tested & Fully Working

Key Specifications
Brand / OEM: Navien
Part Number: 30009478A
Description: NPE Series Exhaust Thermistor Probe
System Type: Tankless Water Heater
Sensor Type: Exhaust Gas Temperature Thermistor
Voltage: 24V
Function: Monitors combustion exhaust gas temperature to help regulate burner efficiency and prevent overheating
Probe: Rigid metal cylindrical temperature-sensing probe
Mounting: Stamped diamond-shaped metal mounting flange
Mounting Holes: 2 screw holes
Wiring: 2 black wire leads
Connector: White 3-position nylon block connector with 2 populated terminals
Wire Protection: Black heat-shrink tubing at the probe connection

️ Features
Genuine Navien replacement sensor
Designed for NPE Series tankless water heaters
Helps monitor exhaust temperature during operation
Compact metal probe design with integrated mounting flange
Direct connector-style installation

Compatibility
Compatible with Navien NPE Series tankless water heaters where part number 30009478A is specified.
⚠️ Please verify your existing part number, connector, and mounting configuration before purchasing.

✅ Why Buy From UMSOL?
Clean, tested and fully working HVAC parts
Quality OEM and OEM-equivalent parts available
Save money compared with purchasing a complete new water heater
Professional HVAC support available

Pickup
Available for pickup at Ultimate Mechanical Solution Inc. (UMSOL).
(416) 848-7040
www.umsol.ca
office@umsol.ca