Keep your York TG9S100C20MP11 furnace running efficiently with genuine OEM replacement parts from Repair Clinic. The TG9S100C20MP11 is a 100,000 BTU input, 96% AFUE two-stage condensing gas furnace from York’s TG9S series featuring an ECM blower motor for efficient, quiet airflow at both low-fire and high-fire stages. At 100,000 BTU this is the highest-output configuration in the TG9S series and requires the same condensate management, PVC venting, and two-stage pressure switch service as lower-output TG9S models. Repair Clinic stocks genuine York OEM parts for the TG9S100C20MP11 including the York igniter parts, York flame sensor parts, York draft inducer motor parts, and York control board parts. Browse the York furnace parts catalog filtered by TG9S100C20MP11 for the complete parts inventory.
TG9S100C20MP11: York 100,000 BTU 96% Two-Stage Condensing Furnace at the Top of the TG9S Series
The York TG9S100C20MP11 at 100,000 BTU is the highest-output model in the TG9S two-stage condensing series. At this output class the inducer handles the greatest combustion gas volume in the TG9S family, and the furnace cycles most aggressively on cold days, accumulating igniter thermal cycles faster per season than lower-output TG9S models. A blocked condensate drain is the most common cause of pressure switch faults on the TG9S100C20MP11, and annual flushing of the condensate trap before the heating season is the most cost-effective preventive step on this platform.
Most Replaced Parts on the York TG9S100C20MP11
Condensate Trap for the TG9S100C20MP11
Annual flushing of the condensate trap at the beginning of the heating season is the single most cost-effective preventive maintenance step for the TG9S100C20MP11. Algae growth in the trap during warm months when the furnace is idle causes most pressure switch fault calls at early heating season startup on the TG9S platform.
York TG9S100C20MP11 Draft Inducer Motor
The TG9S100C20MP11 uses a variable-speed condensing-rated inducer sized for 100,000 BTU combustion gas throughput. It must tolerate moisture from condensate-laden flue gases and must never be substituted with a standard 80% AFUE inducer or an inducer from a lower-output TG9S configuration. Bearing failure presents as grinding at startup during the pre-purge phase.
Hot Surface Igniter for the TG9S100C20MP11
At 100,000 BTU the TG9S100C20MP11 cycles more frequently on cold days than lower-output TG9S models, accumulating igniter thermal cycles faster per season. Testing resistance at room temperature with power off confirms or rules out igniter failure in under two minutes.
York TG9S100C20MP11 Control Board
The control board manages two-stage gas valve operation, variable-speed ECM blower sequencing, condensate monitoring, and safety switch inputs specific to the TG9S100C20MP11. Read and document the LED fault code before ordering any replacement component.
Why Choose Repair Clinic for York TG9S100C20MP11 Parts
- Genuine York TG9S OEM Components: Condensing-rated inducers, two-stage control boards, and pressure switch assemblies confirmed for the TG9S100C20MP11 100,000 BTU platform York furnace parts.
- Condensate System Priority: Annual drain trap flushing guides prevent the most common TG9S100C20MP11 pressure switch fault from recurring at heating season startup.
- 100C vs 040A Output Differentiation: The TG9S100C20MP11 and TG9S040A08MP11A inducer motors are catalogued separately by output class to prevent cross-substitution through furnace repair help.
- 365-Day Returns: Return any uninstalled York part within a full year of purchase with no restocking fees.
York TG9S100C20MP11 Furnace Parts FAQ
What is the BTU output and efficiency of the York TG9S100C20MP11?
The TG9S100C20MP11 is a 100,000 BTU input, 96% AFUE two-stage condensing gas furnace from York’s TG9S series with an ECM blower motor. The TG9S designation identifies the 96% two-stage condensing platform and 100 identifies 100,000 BTU capacity.
How is the York TG9S100C20MP11 different from the TG9S040A08MP11A?
The TG9S100C20MP11 delivers 100,000 BTU while the TG9S040A08MP11A delivers 40,000 BTU, both on the same TG9S 96% two-stage condensing platform. The inducer motor is sized for the output class of each model and must not be cross-substituted between the 100C and 040A configurations.
Why does my TG9S100C20MP11 produce a pressure switch fault?
A blocked condensate drain is the most common cause of pressure switch faults on any condensing furnace including the TG9S100C20MP11. Annual flushing of the condensate trap before the heating season prevents the algae growth that causes most early-season pressure switch fault calls on the TG9S platform.
What type of venting does the York TG9S100C20MP11 require?
The TG9S100C20MP11 is a 96% AFUE condensing furnace requiring Schedule 40 PVC plastic venting. It can be installed as two-pipe sealed combustion or single-pipe non-direct vent. Metal B-vent is not appropriate.
