Keep your York TG9S080B12MP11A delivering steady heat with genuine OEM replacement parts from Repair Clinic. The model decodes as an 80,000 BTU input (080) TG9S furnace, York’s 95% AFUE single-stage condensing series, in a B width cabinet with a 1,200 CFM blower class (B12) and multi-position installation (MP). York, Coleman, and Luxaire share this Johnson Controls platform. The parts replaced most often are the TG9S080B12MP11A draft inducer motor, the pressure switch, the igniter, and the flame sensor. Use the TG9S080B12MP11A parts list to match your build, then shop all York furnace parts.
The 080 Output Class on the TG9S Platform
This TG9S080B12MP11A shares its cabinet and blower class with the TG9S060B12MP11A, but the burner, gas orifices, and combustion air components are sized for the higher 80,000 BTU input. York’s parts breakdown for the series lists a combustion blower restrictor that changes by input size, so reusing a part from a different size can produce chronic pressure switch faults even with a healthy inducer. Like every condensing furnace, it vents through PVC and relies on a clear condensate trap. The blower is a PSC motor with a run capacitor rather than an ECM motor. The TG9S080B12MP11A manual and TG9S080B12MP11A diagram show the drain layout, restrictor position, and fault codes. For TG9S080B12MP11A repair steps, open the York furnace troubleshooting page.
High-Failure Components on the TG9S080B12MP11A Furnace
Draft Inducer Motor and Restrictor Sizing
The inducer creates the negative pressure that closes the pressure switch before ignition. A worn motor grinds during pre-purge and slows until the switch drops out. When replacing the motor, confirm that the combustion blower restrictor matches the 080 input shown on your diagram; a wrong restrictor causes the same lockouts as a failed motor. Replacement inducer motors are listed here.
Pressure Switch Lockout: Drain First, Switch Second
A blocked condensate drain backs water into the pressure sensing tube and produces a false low draft reading. Flush the trap and clear the drain line before testing the switch. If the lockout clears, the switch is fine. Replace the pressure switch only after drainage is confirmed and the contacts fail to close under proper draft.
Igniter Performance at Low Outdoor Temperatures
An aging TG9S080B12MP11A igniter may light the burner on mild days yet fail when cold supply air crosses it during pre-purge. Intermittent no-heat calls that worsen as outdoor temperatures fall are the main field sign, even when the element looks intact. Read the fault code, then replace the hot surface igniter.
Flame Sensor and Three-Attempt Lockout
If the burner lights and drops out within seconds three times before lockout, the TG9S080B12MP11A flame sensor has lost its signal to oxide buildup. Clean the rod; if the pattern returns, replace it with a genuine flame sensor.
Why Choose Repair Clinic for York TG9S080B12MP11A Furnace Parts
- Genuine York OEM Parts: Components from the Johnson Controls platform shared with Coleman and Luxaire. Browse the full York furnace parts catalog.
- Input-Specific Combustion Parts: Restrictors, orifices, and burners are matched to the 080 size, not the 060.
- Capacitor and Drain Protocol: Test the blower run capacitor before the motor, and flush the condensate trap before the pressure switch.
- Shop TG9S080B12MP11A Parts Online: In-stock TG9S080B12MP11A replacement parts ship the same day with a 365-day return policy.
York TG9S080B12MP11A Furnace Parts FAQ
Why does this furnace show a pressure switch fault when the inducer is running?
A blocked condensate drain is the usual cause. Backed-up water fills the pressure sensing tube and creates a false low draft signal. Flush the trap and clear the drain before testing the switch electrically.
Can I use TG9S060 combustion parts in the 080 furnace?
Not without checking. The two share a cabinet and blower class, but the combustion blower restrictor, burners, and orifices are sized by input. Confirm TG9S080B12MP11A parts for combustion against the 080 diagram.
What should I check if the blower hums but will not start?
Test the run capacitor first. Replace it if it reads more than 5 to 10% below its rated value, matching the microfarad rating on the installed capacitor. Replace the motor only if a good capacitor does not fix it.
When does the TG9S080B12MP11A heat exchanger need inspection?
Rollout switch trips, scorch marks near the burners, or repeated limit trips with a clean filter call for a professional inspection of the primary and secondary heat exchangers.
