9330-3121 Coleman-Mach Ceiling Assembly Control Knob

Restore precise temperature control in your Coleman-Mach RV rooftop air conditioner with the genuine OEM 9330-3121 selector knob. Engineered for durability and exact engagement, this control knob brings back smooth, worry-free operation to 9330 and 9430 series ceiling assemblies.

🔧 Product Specifications

• Part Number: 9330-3121

• Description: Round selector/control knob for heat/cool and fan settings

• Material: High-impact black plastic

• Color: Matte black finish

• Diameter: 1.75″ (approximate)

• Weight: 0.2 lb

• Warranty: Limited 90-day manufacturer warranty

📋 Compatibility

Fits the following Coleman-Mach ceiling assemblies and thermostats:

• Ceiling assembly models 9330 and 9430

• Mach 3, Mach 8, Mach 10 remote-control ceiling units

• Direct replacement for part numbers 8330-312 and 9330-312

Verify knob fitment against your existing selector shaft diameter and control overlay.

💡 Technician Notes

• Ensures firm engagement with the selector shaft for accurate mode selection and reduced slippage

• Snap-fit design allows quick swap without disassembling the entire ceiling assembly

• OEM fit prevents wear-related wobble and service callbacks

• Ideal service part to address lost or cracked knobs on aging RV A/C systems