Suburban 350124 Combustion Air Wheel – Fix Noisy or No-Airflow RV Furnace (P-40S) - Special Order

Product Overview

Is your RV furnace making loud noises, failing to ignite, or running without producing heat? A worn or damaged combustion air (blower) wheel is a common cause—especially in larger furnaces like the P-40S.

The Suburban 350124 Combustion Air Wheel is a direct replacement designed specifically for the Suburban P-40S furnace, restoring proper airflow required for ignition and efficient heating.

If your blower motor runs but your furnace won’t light, this part is often the missing link.

*Note: This is a special order item. Lead time is 2-4 weeks. 

Common Problems This Part Fixes

• RV furnace making loud rattling, squealing, or grinding noise
• Furnace blower runs but no ignition
• Weak or inconsistent airflow
• Furnace cycles but doesn’t produce heat
• Combustion airflow issues causing ignition failure
• Furnace struggles to stay lit

This part directly addresses common searches like:

• Why is my RV furnace making noise?
• Why won’t my Suburban furnace ignite?
• RV furnace blower runs but no heat

Key Features

• Direct replacement for Suburban 350124 combustion air wheel
• Designed specifically for Suburban P-40S furnace
• Restores proper airflow for ignition and heating
• Eliminates noise caused by worn or unbalanced wheels
• Improves furnace efficiency and reliability
• Durable construction for long service life

Specifications

• Part Number: 350124
• Product Type: Combustion air wheel / blower wheel
• Function: Moves combustion air for ignition
• Application: Suburban P-40S furnace

Compatible Furnace Models

• Suburban P-40S

Important Compatibility Note

• Designed specifically for P-40S furnace models
• Not compatible with NT, SF, or SH series furnaces
• Verify your furnace model before ordering

How to Tell If This Is Your Problem

You likely need this part if:

• Your furnace makes noise before ignition
• The blower motor runs but no flame starts
• You hear scraping, vibration, or imbalance noise
• Airflow feels weak or inconsistent

Pro Tip:
If the motor spins but airflow is poor or noisy, the combustion wheel is often the issue—not the motor.

Why This Part Matters

• Ensures proper airflow for combustion
• Allows furnace to ignite correctly
• Prevents strain on the motor and system
• Restores quiet, efficient furnace operation

Without proper airflow, your furnace cannot ignite safely.

FAQ

What does a combustion air wheel do?
It pushes air through the combustion chamber so the furnace can ignite and operate properly.

Is this the same as a blower wheel?
Yes, it is commonly referred to as a combustion blower wheel.

My furnace runs but won’t ignite—could this fix it?
Yes, especially if airflow is weak or the furnace is noisy.

Will this fix a loud furnace?
If the noise is caused by a worn or damaged wheel, this is a very common fix.

Related Parts (Recommended Next Checks)

If this doesn’t solve your issue, check:

• Blower motor
• Sail switch
• Igniter electrode
• Ignition control board