Keep your G40UH-48C-110-15 furnace running efficiently with genuine OEM replacement parts from Repair Clinic. The G40UH-48C-110-15 is a 110000 BTU input, 80% AFUE gas furnace from Lennox. The furnace uses standard metal B-vent, produces no condensate, and has a straightforward non-condensing service profile. The G40UH designation identifies a Lennox 80% AFUE upflow/horizontal multi-position gas furnace. The 48C identifies the cabinet width, 110 identifies 110,000 BTU capacity, and 15 identifies the production revision. The igniter, flame sensor, standard metal B-vent, and control board account for the majority of service calls. Repair Clinic stocks genuine Lennox OEM parts for the G40UH-48C-110-15 including the Lennox igniter parts, Lennox flame sensor parts, Lennox blower motor parts, and Lennox control board parts. Browse the Lennox furnace parts catalog filtered by G40UH-48C-110-15 for the complete parts inventory.
G40UH-48C-110-15: 110000 BTU, 80% AFUE Gas Furnace Service
Reading the control board LED blink code before ordering any component is the required first diagnostic step on the G40UH-48C-110-15. The blink code identifies the specific component fault. Annual flame sensor cleaning with fine steel wool prevents most nuisance lockouts. The Lennox furnace troubleshooting guide covers fault code blink patterns for this platform.
Most Replaced Parts on the G40UH-48C-110-15
Hot Surface Igniter for the G40UH-48C-110-15
Testing resistance at room temperature with power off confirms failure in under two minutes. An infinite ohm reading means the element is open-circuit and must be replaced before any heating cycle can complete.
G40UH-48C-110-15 Flame Sensor
Annual cleaning with fine steel wool extends sensor service life and prevents most early-season nuisance lockouts.
Draft Inducer Motor for the G40UH-48C-110-15
{‘Bearing failure presents as grinding during the pre-purge phase at startup and should be replaced before complete seizure.’ if not condensing else ‘The condensing-rated inducer must tolerate moisture from condensate-laden flue gases and must not be substituted with a standard 80% AFUE inducer. Bearing failure presents as grinding during the pre-purge phase.’}
G40UH-48C-110-15 Control Board
Read and document the two-digit LED blink code before ordering any replacement. The blink code directs the diagnosis to the specific failed component.
Why Choose Repair Clinic for G40UH-48C-110-15 Parts
- Genuine Lennox OEM Components: Igniters, flame sensors, and inducers confirmed for the G40UH-48C-110-15 110000 BTU platform Lennox furnace parts.
- Fault Code Diagnostic Resources: The Lennox furnace troubleshooting LED blink code chart is available alongside every part listing.
- Non-Condensing B-Vent Context: The furnace uses standard metal B-vent, produces no condensate, and has a straightforward non-condensing service profile.
- 365-Day Returns: Return any uninstalled part within a full year of purchase with no restocking fees.
G40UH-48C-110-15 Furnace Parts FAQ
What is the BTU output and efficiency of the G40UH-48C-110-15?
The G40UH-48C-110-15 is a 110000 BTU input, 80% AFUE gas furnace from Lennox. The furnace uses standard metal B-vent, produces no condensate, and has a straightforward non-condensing service profile.
What type of venting does the G40UH-48C-110-15 require?
Standard metal B-vent. It produces no condensate and does not use PVC plastic venting.
My G40UH-48C-110-15 ignites and shuts off within seconds. What is wrong?
This is the flame sensor symptom. The sensor rod has oxidized and cannot pass adequate micro-amp current to confirm sustained combustion. Annual cleaning with fine steel wool prevents most occurrences.
What does the UH designation mean on the Lennox G40UH-48C-110-15?
The UH designation in G40UH identifies an upflow and horizontal multi-position furnace that can be installed in either an upflow or horizontal configuration depending on the installation space requirements.
