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St. Croix 80P20001-R Exhaust Blower Motor for Pellet Stoves -- NBK 20139, 115V 3000 RPM
St. Croix 80P20001-R exhaust blower motor NBK 20139 for pellet stoves, 115V 3000 RPM Class B insulated replacement part
St. Croix Exhaust Blower Motor For St. Croix Pellet Stoves
  
List Price: $94.12
: $51.99
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Part Number: 80P20001-R
Manufacturer: St. Croix

Quantity in Stock :33

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St. Croix OEM Part 80P20001-R NBK 20139 St. Croix 80P20001-R Exhaust Blower Motor for Pellet Stoves

When your St. Croix pellet stove stops exhausting combustion gases properly -- or shuts down on a pressure switch fault -- a worn exhaust blower motor is usually the culprit. This is the direct OEM-spec replacement, part number 80P20001-R (also catalogued as NBK Parts 20139), designed to restore proper draft and safe stove operation across a wide range of St. Croix pellet stove models.

Restore Safe, Reliable Draft to Your St. Croix Pellet Stove

The exhaust blower motor is one of the hardest-working components in any pellet stove. It runs continuously during operation, pulling combustion gases through the heat exchanger and out the flue. When bearings wear or the motor windings degrade, you get reduced draft, nuisance pressure-switch shutdowns, or a stove that simply will not light. Replacing the motor with the correct OEM-spec unit gets you back to factory performance without chasing intermittent faults.

This motor is rated at 115V, 60Hz, 0.31A, and 3,000 RPM -- matched to the original specs St. Croix specified for these stoves. Class B insulation provides a thermal margin appropriate for the elevated ambient temperatures inside a pellet stove cabinet.

Wide Model Coverage

Fits 15 St. Croix pellet stove models including the Prescott EXL/EXP, Afton Bay, Lancaster, Hastings, and more. See the full compatibility list below.

Dual Wiring Compatibility

Works with both older 3-wire St. Croix units and newer 2-wire models equipped with digital control boards -- one part covers a broad production range.

Class B Insulation

Class B motor insulation is rated to 130 deg C continuous, providing reliable service in the high-ambient-temperature environment of a pellet stove cabinet.

OEM Part Number

Sold under St. Croix part number 80P20001-R and cross-referenced as NBK Parts 20139. No guesswork on fitment when you order by the OEM number.

Diagnosing a Failing Exhaust Blower

Common symptoms that point to the exhaust blower motor as the failed component include:

  • Stove shuts down shortly after ignition with a pressure switch or vacuum error code
  • Visible soot or smoke backdrafting into the living space
  • Motor runs but airflow at the exhaust termination cap is noticeably weak
  • Motor hums but does not spin (seized bearings)
  • Burning or electrical smell from the blower housing area

Before replacing the motor, verify the exhaust venting is clear of obstruction and the pressure switch tubing is intact. A blocked flue or cracked pressure switch hose can mimic a failed blower. If the vent path is clear and the motor is pulling less than its rated amperage -- or more -- the motor itself is likely the fault.

Direct OEM Replacement: Part number 80P20001-R is the factory-specified exhaust blower for the models listed below. No modifications or adapters are required for a direct swap on compatible St. Croix stoves.

Compatible St. Croix Pellet Stove Models

This exhaust blower motor is confirmed to fit the following St. Croix pellet stove models:

  • Afton Bay
  • Ashby-MF
  • Ashby-P
  • Auburn
  • Element-P
  • Greenfield
  • Hastings
  • Lancaster
  • Lincoln SCR
  • Pepin
  • Prescott EXL
  • Prescott EXP
  • SCF-050
  • SCF-Revolution (2012 model year)
  • York Insert
2-Wire vs. 3-Wire: St. Croix transitioned from a 3-wire exhaust blower connection on older analog-control stoves to a 2-wire connection on newer digitally controlled models. Part 80P20001-R is compatible with both configurations. If you are uncertain which your stove uses, check the existing motor harness connector before ordering -- both types use the same motor body and mounting pattern.

Installation Notes

Exhaust blower replacement is a straightforward service task on most St. Croix models. General procedure:

  • Allow the stove to cool completely and disconnect power before beginning any service work
  • Remove the rear access panel to reach the exhaust blower housing
  • Disconnect the motor wiring harness and loosen the mounting hardware
  • Remove the blower wheel from the old motor shaft before installing onto the new motor (the wheel is typically retained by a set screw)
  • Reinstall in reverse order, ensuring the blower wheel spins freely without contacting the housing
  • Reconnect power and run a short test cycle to confirm draft pressure switch does not trip
Service Tip: While the stove cabinet is open, vacuum the heat exchanger tubes and blower housing of ash buildup. Accumulated ash restricts airflow and accelerates motor wear, shortening the life of the new motor.
Related Parts to Check: While servicing the exhaust blower, inspect the combustion air intake blower, the pressure switch, and the pressure switch tubing for cracks or blockages. These components work together and often show wear at similar service intervals on high-hour stoves.

Electrical Specifications

Part Number (OEM)80P20001-R
Cross-Reference (NBK)20139
Voltage115V AC
Frequency60 Hz
Amperage0.31A
Motor Speed3,000 RPM
Insulation ClassClass B (130 deg C rated)

Physical Specifications

Shipping Weight8 lbs
ManufacturerSt. Croix
ApplicationExhaust / combustion blower motor

Compatibility Summary

Wiring ConfigurationFits 2-wire (digital control) and 3-wire (analog control) models
Stove BrandSt. Croix only
Number of Confirmed Model Fits15 models (see list)
SCF-Revolution Year2012 model year confirmed

What Is Included

IncludedExhaust blower motor (80P20001-R)
Not IncludedBlower wheel / impeller (reuse existing)
Not IncludedMounting hardware
Not IncludedWiring harness or connectors
Important Information -- Read Before Installing
  • Disconnect all power to the stove before beginning service. The exhaust blower motor operates on 115V AC -- contact with live wiring is a shock and fire hazard.
  • Allow the stove and all internal components to reach room temperature before handling. Internal surfaces can remain hot enough to cause burns for several hours after the last burn cycle.
  • This motor is designed for St. Croix pellet stoves only. Do not attempt to install in other pellet stove brands without verifying all mounting dimensions, shaft diameter, and electrical ratings independently.
  • The SCF-Revolution compatibility is confirmed for the 2012 model year. Verify your model year if you own a Revolution, as the design changed across production years.
  • Do not operate the stove with the access panels removed or the exhaust path open. Combustion gases including carbon monoxide can enter the living space.
  • If symptoms return shortly after replacing the motor, inspect the exhaust vent termination for blockage (bird nests, ice, debris) and verify pressure switch tubing integrity before assuming a second motor failure.


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