Bissell Pro Heat Smart Mix Knob 210-5108 2105108

SmartMix Knob | OEM‑Compatible | For Bissell ProHeat Carpet Cleaners | Part 2105108

Restore proper solution‑mixing control with this brand‑new SmartMix Knob, engineered as an OEM‑compatible replacement for BISSELL® ProHeat® upright carpet cleaners. This knob allows you to adjust cleaning solution ratios for light cleaning, normal cleaning, or heavy traffic areas.

Perfect for replacing cracked, stripped, or non‑responsive SmartMix knobs that prevent proper detergent dispensing.

⚙️ Key Features

• OEM‑compatible replacement for Bissell part 2105108
• Restores SmartMix functionality for accurate solution control
• Durable molded construction for long service life
• Direct‑fit design for supported ProHeat models
• Easy installation with secure shaft engagement
• Condition: Brand New – Unused

Replaces Part Numbers

2105108
(Direct replacement for ProHeat SmartMix selector knobs)

Fits Bissell ProHeat Carpet Cleaner Models

Compatible Models:
1697
1698
1699
7901
7920
7950
8905
8804

Common Fixes

• SmartMix not adjusting between settings
• Knob cracked, stripped, or spinning freely
• Incorrect detergent ratio during cleaning
• Solution not dispensing properly
• Knob missing or difficult to turn

️ Installation Tips

• Unplug the machine before servicing
• Remove the old knob by pulling straight outward
• Align the new knob with the SmartMix selector shaft
• Press firmly until fully seated
• Test all SmartMix settings before cleaning

Restore full SmartMix functionality with this OEM‑compatible SmartMix Knob — the correct replacement for Bissell part 2105108.