Tennant ec H2O NanoClean T350 User Manual (English)

Questions and Answers:

M
Mark FlemingAug 18, 2025
Why my Tennant ec H2O NanoClean T350 Scrubber machine will not operate?
- J
  Jennifer BrownAug 18, 2025
  If your Tennant Scrubber won't operate, several factors could be at play. First, check if the emergency shut-off button is activated and turn the button to reset it. Also, check the batteries. They may be discharged, so recharge them. Alternatively, there may be loose battery cables, so tighten them. Other possible causes include faulty batteries (replace them), a tripped circuit breaker (reset it). For machine faults, faulty key switch, green go pedal, or control board you should contact service.
C
Charles AcevedoAug 20, 2025
How to fix trailing water on Tennant Scrubber?
- C
  Christopher RichardAug 20, 2025
  If you're experiencing poor or no water pickup with your Tennant Scrubber, start by checking the recovery tank. It might be full or have excessive foam buildup, so drain it. Ensure the drain hose cap is secure; if it's loose, replace it. Inspect the squeegee blades for wear and rotate or replace them if needed. Clear any clogs from the drip trap or the squeegee assembly. Check for loose vacuum hose connections and secure them. Flush the vacuum hose to remove any clogs, and if it's damaged, replace it. Also, clean the float shut-off screen in the recovery tank and ensure the recovery tank lid is completely closed and seals properly; replace the seal if defective.
W
Willie ButlerAug 23, 2025
Why is there little or no solution flow in my Tennant ec H2O NanoClean T350 Scrubber?
- C
  cameronmichelleAug 23, 2025
  If your Tennant Scrubber has little or no solution flow, start by refilling the solution tank if it's empty. Increase the solution flow rate if it's set too low. Clean the solution tank filter if it's clogged, and flush the solution supply line if it's plugged. If the ec-H2O pump does not prime, restart machine and set flow rate to high.
F
Frank HallAug 26, 2025
What to do if Tennant ec H2O NanoClean T350 machine will not propel?
- J
  joy80Aug 26, 2025
  If your Tennant Scrubber won't propel, remove your right foot from the green go pedal if the forward/reverse light is flashing rapidly. For propel fault, see SERVICE INDICATOR CODES. Reset the circuit breaker if it has tripped. For faulty propel motor or wiring and worn carbon brushes in motor, contact service.
M
Megan MontoyaAug 28, 2025
Why automatic battery watering tank does not dispense water in Tennant ec H2O NanoClean T350?
- M
  Mrs. Beth Smith MDAug 28, 2025
  If the automatic battery watering tank on your Tennant Scrubber isn't dispensing water, refill the tank if it is empty. For defective pump, pump not priming, and faulty control board, contact service.
A
Amy ClarkAug 30, 2025
What to do if Tennant ec H2O NanoClean T350 Scrubber on-board battery charger will not operate?
- K
  Kevin ObrienAug 30, 2025
  If the on-board battery charger of your Tennant Scrubber isn't working, first ensure the plug is correctly connected to the power supply. If the batteries are over-discharged, consider replacing them. If there is a faulty charger, replace it, or replace the power supply cord if faulty. For battery charger faults, see SERVICE INDICATOR CODES.
L
Linda StephensSep 2, 2025
How to extend run time on Tennant ec H2O NanoClean T350?
- A
  alewisSep 2, 2025
  If your Tennant Scrubber has a short run time, the battery charge might be low, so charge the batteries. If there is a defective battery or end of battery life, replace the batteries. Also, lower the brush pressure, if it is set too high. For batteries maintenance, see BATTERIES. For battery discharge indicator (BDI) programmed incorrectly, see CHARGING BATTERIES. If there is a faulty charger, replace the battery charger.
H
Heather SmithSep 4, 2025
How to improve scrubbing performance of Tennant ec H2O NanoClean T350 Scrubber?
- J
  josephgoodmanSep 4, 2025
  If your Tennant Scrubber isn't scrubbing well, start by removing any debris caught in the brush/pad. Replace the brush/pad if it's worn. Adjust the brush pressure if it's incorrect, and ensure you're using the correct brush/pad type for your application. Recharge the batteries if the battery charge is low. If the scrub head/brushes are not level, contact service.
J
John DavisSep 7, 2025
Why vacuum motor will not operate on Tennant ec H2O NanoClean T350 Scrubber?
- R
  Rachel WilcoxSep 7, 2025
  If the vacuum motor on your Tennant Scrubber isn't working, lower the squeegee assembly to the floor. For vacuum motor fault, see SERVICE INDICATOR CODES. For faulty vacuum motor or wiring, contact service.
W
wheelerclaytonSep 9, 2025
What causes brush motor to not operate on Tennant ec H2O NanoClean T350 Scrubber?
- R
  Richard RileySep 9, 2025
  If the brush motor on your Tennant Scrubber isn't working, see SERVICE INDICATOR CODES for brush motor fault. For faulty pad motor or wiring, worn carbon brushes in motor, and broken or loose belt, contact service.

Tennant ec H2O NanoClean T350 Specifications

General

Brand	Tennant
Model	ec H2O NanoClean T350
Category	Scrubber
Language	English

Summary

Introduction to the T350 Scrubber

Machine Setup & Intended Use

Defines machine purpose and provides uncrating instructions.

Safety Precautions for T350 Operation

General Safety Guidelines & Labels

Lists warnings for hazards, operational safety, labels, and precautions.

General Information for T350 Scrubber

Component Identification & Schematics

Locates components, explains symbols, and provides electrical schematics.

T350 Machine Specifications

Operational Matrix & Specifications

Details machine functions, dimensions, capacities, and performance.

T350 Maintenance Procedures

Maintenance Schedule & Daily Tasks

Outlines daily and scheduled maintenance tasks.

T350 Battery Systems Maintenance

Battery Systems Maintenance & Charging

Covers battery types, care, connections, charging, and watering systems.

T350 Brush, Pad & Squeegee Replacement

Brush, Pad & Squeegee Replacement

Instructions for replacing brushes, pads, and squeegees.

T350 System Maintenance Procedures

ec-H2O Cartridge & Machine Jacking

Procedures for ec-H2O cartridge replacement and machine jacking.

T350 Machine Transport & Storage

Machine Transport, Storage & Freeze Protection

Guidelines for moving, transporting, storing, and protecting the machine.

T350 Troubleshooting Guide

General Troubleshooting & Fault Codes

Identifies common issues, fault codes, and indicators.

T350 System Troubleshooting

Battery & Power System Troubleshooting

Guides for resolving battery charging and machine power-up failures.

T350 Component Troubleshooting

Propulsion, Motor & Lift System Troubleshooting

Troubleshooting for propulsion, scrub motor, and lift actuator issues.

T350 System Failures Troubleshooting

Vacuum Fan & Solution Control Troubleshooting

Troubleshooting for vacuum fan and solution control systems.

T350 Specialized System Troubleshooting

Specialized System Troubleshooting (SE, ABW, i-Drive)

Troubleshooting for SE, ABW, and i-Drive systems.

T350 Control Panel Diagnostics

Control Panel Diagnostics & Manual Mode

Displaying faults, warnings, and entering manual mode on control panels.

T350 Service Operations

Diagnostics, Programming & Firmware Updates

Using the tool for diagnostics, module programming, and firmware updates.

T350 Module Configuration

Module Configuration & Machine Reconfiguration

Steps for programming i-Drive and reconfiguring the machine.

T350 Support & Charger Settings

Support Documentation & Charger Settings

Accessing support docs and changing off-board charger settings.

T350 Exterior & Steering System Service

Exterior & Steering System Service

Instructions for shroud removal and steering cable service.

T350 Drive Wheel & Motor Brush Service

Drive Wheel & Motor Brush Service

Steps for servicing wheel assemblies and motor brushes.

T350 Scrub Head Assembly Service

Scrub Head Assembly Service

Steps for removing, installing, and replacing the scrub head assembly.

T350 Actuator & Squeegee Adjustment

Actuator Removal & Replacement

Steps for removing and replacing the scrub head actuator.

Squeegee Assembly Adjustment

Procedures for adjusting the squeegee assembly.

T350 Vacuum Fan & Hose Service

Vacuum Fan Assembly Service

Instructions for removing and installing the vacuum fan assembly.

Hose Installation & Routing

Instructions for installing and routing hoses.

T350 Component & Connector Service

Water Solenoid Valve Service

Steps for removing and installing the water solenoid valve.

PTC Hose Connection Procedures

Guide for connecting hoses using PTC fittings.

T350 Control System Service

Control Module Service

Steps for removing and installing the main control module.

i-Drive Module Service

Instructions for removing and installing the i-Drive module.

T350 Panel & Pedal Service

Control Panel & Control Board Service

Steps for removing and replacing the control panel and board.

Pedal Assembly Service

Instructions for removing and installing foot pedals.

T350 Charger & ABW System Maintenance

On-Board Battery Charger Service

Steps for removing and installing the on-board battery charger.

Optional Systems Maintenance (ABW)

Maintenance for the Smart-Fill Automatic Battery Watering system.

T350 Specialized System Troubleshooting & Maintenance

Automatic Battery Watering Controller Replacement & ABW Pump Troubleshooting

Steps to replace ABW controller and troubleshoot ABW pump.

ec-H2O Solution Pump & Module Service

Instructions for servicing the ec-H2O solution pump and module.

T350 Environment & Detergent System Service

Severe Environment Group Maintenance

Maintenance procedures for the Severe Environment group.

Detergent Pump & Metering Potentiometer Service

Steps to remove and install the detergent pump and potentiometer.

T350 Detergent Metering Sensor Service

Detergent Metering Liquid Level Sensor Service

Instructions for removing and installing the liquid level sensor.

Related product manuals

Tennant ec H2O NanoClean T350 User Manual

Table of Contents