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July 19, 2026 2 min read

BEFORE YOU START: Ensure the recovery tank cover is sealed tight and the battery charger cord is unplugged from the wall.

1. CONTROL PANEL AT A GLANCE

       [ 1 ] Battery gauge
       [ 2 ] Main power switch on/off button
  (+)  [ 3 ] Brush on/off button
  ECO  [ 4 ] Vacuum on/off button
  (-)  [ 5 ] Solution flow on/off button

Quick Power Commands:

  • Turn ON: Tap the Power Switch once (0.1 sec).

  • Turn OFF: Hold the Power Switch down for 4 seconds.

  • Enable Silent / ECO Mode: Press the ECO button. Ideal for daytime cleaning and noise-sensitive areas.

2. BATTERY & CHARGER STATUS

LED Light Pattern What It Means Action Needed
Solid Green 100% – 50% Charge Ready to clean.
Solid Yellow 50% – 20% Charge Low charge — plan to finish up soon.
Solid Red Below 20% Charge Stop cleaning! Recharge immediately to protect battery life.
🟡 Flashing 7 Times Plugged In Battery is currently charging.
🔴 Flashing 6 Times Critical Low Battery Machine disabled. Plug in charger immediately.

3. OPERATING THE MACHINE

  1. Fill Solution Tank: Fill clean water and approved cleaning detergent through the front tank port.

  2. Set Water Flow: Adjust the solution switch [ 5 ] to the desired water output level.

  3. Start Scrubbing: Turn power ON, engage the handle levers, and walk forward at a steady pace.

  4. Check Dirty Water Float: If suction suddenly stops or the vacuum pitch gets high, the dirty water tank is full—time to empty it!

4. END-OF-SHIFT CLEANING (5-Minute Routine)

DO THIS DAILY TO PREVENT BAD ODORS AND MACHINE BREAKDOWNS!

┌─────────────────┐    ┌─────────────────┐    ┌─────────────────┐
│  1. DRAIN TANK  │ ──>│ 2. RINSE FLOAT  │ ──>│ 3. WIPE BLADES  │
│ Empty recovery  │    │ Flush dirty     │    │ Wipe squeegee   │
│ dirty water.    │    │ tank & screen.  │    │ rubber clean.   │
└─────────────────┘    └─────────────────┘    └─────────────────┘

  1. Drain & Flush Recovery Tank: Drain dirty water into an approved floor drain. Rinse the inside of the tank with fresh water.

  2. Clean Float Filter: Check the float shut-off cage inside the recovery tank and clear away any debris or hair.

  3. Wipe Down Squeegee: Wipe squeegee blades with a clean cloth. Do not let sticky residue dry on the rubber.

  4. Plug In Charger: Connect the power cable to a wall outlet. Ensure the charging indicator light is active before walking away.

QUICK TROUBLESHOOTING FOR OPERATORS

Problem Quick Fix
Water left behind on floor? Clear debris or string caught under the squeegee blades. Ensure vacuum hose is firmly plugged in.
No water coming out? Check solution tank level. Ensure solution valve underneath the tank is turned ON.
Machine won't start? Make sure the charger cable is unplugged from the wall outlet.
Lights flashing red/yellow? Turn machine off, wait 10 seconds, and turn back on. If flashing continues, inform your supervisor or service tech.

Looking for Replacement Parts or Technical Support?

Whether you need replacement squeegee blades, brush motors, filters, or battery care supplies, keeping OEM-spec parts on hand ensures minimal downtime. Contact our service team or explore our catalog for exact-fit replacement parts for Tennant, Nobles, and other leading floor scrubber brands. Shop Tennant CS16 Parts