The Goodman GMPN080-4 is an 80,000 BTU single-stage upflow gas furnace built on a four-ton blower platform, marketed as a Northern-climate variant of the GMP080 series with airflow calibrations suited to colder regional installations. Repair Clinic stocks the complete OEM parts catalog for the GMPN080-4, including control board B1809913S, hot surface igniter B1401018S and its current OEM upgrade 0230K00001, flame sensor 0130F00010, draft inducer motor B2833001S, and blower motor B1340020S. Whether you are referencing the GMPN080-4 parts diagram, need the GMPN080-4 manual, or are looking to confirm compatibility with a GMPN080-4 Rev B unit, the Goodman furnace parts catalog filters results by your exact model number.
OEM Goodman GMPN080-4 Replacement Parts
The GMPN080-4 shares most of its service components with the GMP080-4 and GMP100-4 siblings on the same Goodman platform. The key differences lie in the blower motor speed tap configuration and airflow-specific calibrations. Because these components carry identical Goodman part numbers across much of the platform, Repair Clinic’s model-filtered parts search is the fastest way to confirm which parts apply specifically to the GMPN080-4. For fault code interpretation and step-by-step component testing, the Goodman furnace troubleshooting guide covers the full blink code sequence for the B1809913S control board used in this model.
Most Replaced Parts on the Goodman GMPN080-4
Hot Surface Igniter (B1401018S / 0230K00001)
The GMPN080-4 originally shipped with the B1401018S silicon carbide igniter. Goodman’s current OEM replacement is the 0230K00001 silicon nitride mini igniter, rated seven times more durable than the carbide original. A failed igniter causes the board to time out without a confirmed flame and locks out the furnace. Handle the element only by its ceramic base during installation to avoid thermal hot spots from skin oils.
GMPN080-4 Control Board
The B1809913S is the 9-pin HSI control board shared across the GMP and GMPN platform, managing ignition, blower delays, and safety switch monitoring. The LED flash pattern on this board stores the most recent fault in a two-digit blink code. Before replacing the board, read and document the code precisely. A three-flash code indicating ignition failure points to the igniter or flame sensor, not the board itself.
Draft Inducer Motor
Goodman part B2833001S is the draft inducer motor for the GMPN080-4 platform. It draws combustion gases through the heat exchanger before the main burner ignites and must reach full speed before the pressure switch closes to allow ignition. Bearing wear presents as a grinding sound during the pre-purge phase. Northern-climate installations with longer venting runs place additional back-pressure on the inducer, which can accelerate bearing wear compared to short-run installations.
Blower Motor
The B1340020S is a 1/2 HP, 1075 RPM, 3-speed PSC motor serving the GMPN080-4 four-ton blower assembly. The run capacitor for this motor is CAP100000370VAS. A capacitor that has drifted outside its rated microfarad value causes the motor to start slowly or run at reduced speed, which triggers limit switch trips from insufficient airflow. Always test the capacitor before ordering a replacement motor.
GMPN080-4 Gas Valve
The Goodman single-stage gas valve 0151M00013S controls gas flow to the GMPN080-4 burner manifold. A valve that does not open on a confirmed igniter signal, or one that leaks when de-energized, requires replacement. Gas valve diagnosis should always follow confirmation that the igniter, flame sensor, control board, and pressure switch are functioning correctly, as these components must all be satisfied before the valve receives an open signal.
Why Repair Clinic for Goodman GMPN080-4 Parts
- Genuine Goodman OEM parts including B1809913S control board, 0230K00001 igniter upgrade, 0130F00010 flame sensor, B2833001S inducer, and B1340020S blower motor matched to the GMPN080-4 four-ton platform
- Parts confirmed compatible with GMPN080-4 Rev B and related GMP080 variants where applicable
- Goodman furnace repair guides with blink code reference charts available alongside every part listing
- 365-day returns on uninstalled parts, no restocking fees
Goodman GMPN080-4 Furnace Parts FAQs
What is the control board part number for the Goodman GMPN080-4?
The control board for the GMPN080-4 is Goodman part B1809913S, the HSI board with a 9-pin connector. It manages ignition sequencing, blower timing, and safety switch monitoring. Before replacing it, read the LED fault code on the board to confirm the fault points to the board itself rather than a sensor, igniter, or pressure switch that the board is reporting as failed.
What igniter fits the Goodman GMPN080-4 furnace?
The original igniter is Goodman part B1401018S, a silicon carbide hot surface igniter. The current OEM replacement is the 0230K00001 silicon nitride mini igniter, which Goodman released as the upgraded successor. Silicon nitride is significantly more durable than silicon carbide and is the recommended replacement for any GMP or GMPN platform furnace today.
What is the difference between the Goodman GMP080 and GMPN080-4?
The GMPN designation indicates a Northern-climate variant of the GMP080 platform, typically incorporating airflow or venting calibrations suited to colder regional installation requirements. Most service parts including the igniter, flame sensor, control board, and inducer motor are shared between GMP080 and GMPN080-4. Always verify with the full model number from your data plate before ordering blower or cabinet-specific components.
What causes the Goodman GMPN080-4 to short cycle?
Short cycling on the GMPN080-4, where the furnace runs for only a few minutes before shutting off, is almost always caused by the primary limit switch opening due to heat exchanger overtemperature. The root cause is restricted airflow, most commonly a dirty air filter, a clogged blower wheel, closed supply registers, or an undersized return duct. Resolve the airflow restriction before replacing the limit switch.
