Nautilus U628 User Manual (English)

Other manuals for Nautilus U628

Questions and Answers:

C
Chad OconnorAug 20, 2025
Why Nautilus U628 console shuts off while in use?
- R
  Renee BurtonAug 20, 2025
  If your Nautilus Fitness Equipment console shuts off during use, there are several potential solutions: First, ensure the unit is properly plugged into a functioning wall outlet, and the connection is secure and undamaged. Replace the power cord or connection if necessary. Check that all wires in the cable are intact; replace the cable if any are cut or crimped. Also, ensure the cable is securely connected and properly oriented. Try unplugging the unit from the electrical outlet for 3 minutes, then reconnect it. Finally, verify that the magnets are in place on the pulley and that the speed sensor is aligned with the magnets and connected to the data cable. Realign or replace the sensor if damaged.
M
monica40Aug 21, 2025
What to do if my Nautilus Fitness Equipment has no display or won't turn on?
- M
  Mark GonzalesAug 21, 2025
  If your Nautilus Fitness Equipment has no display, a partial display, or won't turn on, try these steps: First, ensure the unit is plugged into a functioning wall outlet. Check the power cord and connection at the unit for damage, and replace if necessary. Turn on the power with the Power Switch. Inspect the cable wires for any crimping or cuts, and replace the cable if needed. Make sure the cable is securely connected and properly oriented. Check the console display for cracks or damage, and replace the console if damaged. If the console only has a partial display and all connections are fine, replace the console.
K
Kathryn PenaAug 25, 2025
How to fix Nautilus U628 Fitness Equipment resistance that does not change?
- S
  smurphyAug 25, 2025
  If the resistance on your Nautilus Fitness Equipment isn't changing, try these solutions: Begin by replacing the batteries and checking for proper operation. Inspect the console for any visual damage and replace it if necessary. Ensure all wires in the cable are intact; replace the cable if any are visibly crimped or cut. Verify the cable is securely connected and properly oriented, reseating all connections to ensure the small latch on the connector lines up and snaps into place.
N
npageAug 26, 2025
Why is my Nautilus Fitness Equipment not displaying contact HR?
- K
  Kerry ClineAug 26, 2025
  If your Nautilus Fitness Equipment operates but doesn't display Contact HR, ensure the cable is securely connected to the console. Make sure your hands are centered on the HR sensors, kept still, and applying relatively equal pressure to each side. Using a conductive electrode cream can improve contact. If these steps don't work, the handlebars may need to be replaced.
V
Vincent SweeneyAug 27, 2025
How to troubleshoot telemetric HR not displayed on Nautilus Fitness Equipment?
- N
  Nicholas Holt Jr.Aug 27, 2025
  If your Nautilus Fitness Equipment operates but the Telemetric HR is not displayed, make sure the strap is 'POLAR®' compatible and uncoded, placed directly against the skin, and the contact area is wet. If the strap has replaceable batteries, install new ones. Check the WIRELESS HR setting in the Edit User Profile option to ensure it is set to ON. Try moving the unit away from potential sources of interference like TVs or microwaves. If the issue persists, replace the strap or the console.
J
Jason EdwardsAug 30, 2025
What to do if Nautilus U628 workout results will not sync with Bluetooth device?
- T
  Taylor Meyer MDAug 30, 2025
  If your Nautilus Fitness Equipment workout results won't sync with a Bluetooth® enabled device: * Ensure the machine is in Idle Mode by pressing the PAUSE/END button until the Power-Up Mode screen appears. * Confirm the workout was longer than 1 minute. * Unplug the unit from the electrical outlet for 5 minutes, then reconnect it. * Verify that Bluetooth® is enabled on your device and that your device is compatible with the Fitness App.
A
alexis98Sep 1, 2025
What causes incorrect telemetric HR display on Nautilus Fitness Equipment?
- M
  Maria RodriguezSep 1, 2025
  If your Nautilus Fitness Equipment displays the Telemetric HR incorrectly, make sure that the HR receiver is not blocked by a personal electronic device in the left side of the media tray.
M
michelle76Sep 3, 2025
What to do if Nautilus Fitness Equipment is rocking or not level?
- S
  Sara OneillSep 3, 2025
  To fix a Nautilus Fitness Equipment unit that rocks or doesn't sit level, adjust the levelers until the bike is stable. If the surface is extremely uneven, move the bike to a more level area.
T
Tina YoungSep 5, 2025
Why does my Nautilus U628 console continuously cycle through program screens?
- P
  Patrick NguyenSep 5, 2025
  If your Nautilus Fitness Equipment console continuously cycles through program screens, hold down the PAUSE/END button and the Left button together for 3 seconds.
D
dakotawilliamsonSep 7, 2025
How to resolve loose pedals or difficult pedaling on Nautilus U628 Fitness Equipment?
- G
  Gail PettySep 7, 2025
  If the pedals on your Nautilus Fitness Equipment are loose or the unit is difficult to pedal, ensure the pedal is tightened securely to the crank and that the connection is not cross-threaded. Also, verify that the crank is tightened securely to the axle and that the cranks are connected at 180 degrees from each other.

Nautilus U628 Specifications

General

Brand	Nautilus
Model	U628
Category	Fitness Equipment
Language	English

Summary

Important Safety Instructions

General Assembly & Operation Safety

Provides essential safety guidelines for assembly, setup, and operation to prevent injury and damage.

Pre-Use Safety Checks & Warnings

Outlines critical safety checks and considerations before starting any workout session.

Safety, Labels, and Grounding

Warning Labels & Serial Number

Details the location and importance of safety warning labels and the product's serial number.

Electrical Grounding Instructions

Explains the proper electrical grounding procedures for safe operation and to prevent shock.

Equipment Specifications & Setup

Technical Specifications Overview

Lists key technical specifications including user weight limit, dimensions, and power requirements.

Pre-Assembly Location Advice

Provides advice on selecting a suitable location and preparing for machine assembly.

Parts Identification

Assembly Hardware & Tools

Included Hardware Components

Details the hardware components provided for assembly, including screws, washers, and tools.

Required Assembly Tools

Identifies the tools necessary for assembling the equipment.

Assembly Instructions - Part 1

Stabilizers & Console Mast Assembly

Attaching the front and rear stabilizers and installing the console mast and mast boot.

Assembly Instructions - Part 2

Handlebar Installation on Mast

Mounting the handlebars onto the console mast and securing them with the adjustment knob.

Assembly Instructions - Part 3

Console Unit Installation

Connecting and mounting the console unit onto the console mast, ensuring proper cable management.

Assembly Instructions - Part 4

Console Shroud & Seat Post Install

Attaching the console pivot shroud and installing the seat post into the main frame.

Assembly Instructions - Part 5

Seat & Pedal Installation

Securing the seat to the seat post and installing the left and right pedals onto the crank arms.

Assembly Instructions - Part 6

Final Assembly Checks

Installing water bottle holder, connecting power, and performing final inspection.

Getting Started

Leveling the Bike for Stability

Instructions on how to adjust the bike's levelers to ensure stability and a level surface.

Safely Moving the Bike

Guidance on safely tilting and moving the exercise bike to its desired location.

Key Features Overview

Console Features & Controls

Console Keypad Functions

Details the functions of all buttons on the console keypad for user interaction and control.

Console Display Layout Explained

Explains the console's upper and lower displays, and achievement indicator lights.

Console Display Details

Program & Intensity Displays

Explains the program display for workout progress and intensity display for current work level.

Heart Rate & Goal Displays

Describes heart rate zone display for guidance and goal display for progress tracking.

Console Data Metrics

Speed, Time, Distance Metrics

Details the console displays for speed, time, and distance metrics during workouts.

Level, RPM, Heart Rate Metrics

Explains the console readouts for resistance level, pedal speed (RPM), and heart rate (BPM).

Watts & Calories Metrics

Details the console displays for power output (Watts) and estimated calories burned.

Connectivity & Heart Rate Monitoring

Bluetooth® App Connectivity

Explains how to connect the machine to the Nautilus Trainer™™ Fitness App and other partners.

Heart Rate Chest Strap Usage

Provides instructions on wearing and using the heart rate transmitter chest strap for monitoring.

Advanced Heart Rate Monitoring

Remote HR Monitor & Troubleshooting

Discusses using a wireless chest strap and troubleshooting heart rate detection issues.

Contact HR Sensor Operation

Explains how to use the handlebar-mounted contact heart rate sensors for pulse detection.

Heart Rate Calculation Basics

Provides information on typical maximum heart rate decrease with age and how to estimate it.

Heart Rate Zones & Audio Features

Fat-Burning Target HR Zones

Presents a graph and guidelines for target heart rate zones for optimal fat burning based on age.

Remote Resistance Controls

Details the location and function of the handlebar-mounted remote resistance control buttons.

Speaker & Audio Cable Use

Explains how to play audio through the machine's speakers using an audio cable.

Basic Operation Guidelines

Attire & Exercise Frequency

Provides recommendations on appropriate attire and exercise frequency for effective workouts.

Seat Adjustment Procedure

Guides on adjusting seat height and position for optimal comfort, efficiency, and safety.

Pedal Strap & Foot Placement

Explains proper foot placement on pedals and how to secure the pedal straps for safe exercise.

Power-Up & Auto Shut-Off Modes

Describes the console's power-up modes and automatic sleep mode function.

Console Setup & User Profiles

Initial Console Setup Process

Guides through the initial console setup process, including date, time, and unit preferences.

Quick Start Manual Program

Explains how to start a manual workout without pre-setting any program details.

Creating & Managing User Profiles

Details how to create and manage user profiles to store personalized workout data and preferences.

User Profile Management Details

Editing User Profile Information

Instructions on how to edit user profile details such as name, age, weight, gender, and display settings.

Scan & Wireless HR Settings

Covers console settings for scanning workout values and managing wireless heart rate interference.

Customizing Lower Display Output

Explains how to customize which workout values are displayed in the lower display section.

Workout Program Options

Adjusting Resistance Levels

Describes how to adjust resistance levels during a workout using buttons or quick buttons.

Profile Program Categories

Introduces profile programs categorized into Fun Rides, Mountains, and Challenges.

Advanced Workout Program Selection

Selecting Profile Programs & Goals

Guides on selecting workout categories, specific profile programs, and setting goals (distance, time, calories).

Fitness Test Procedure Explained

Explains the fitness test to measure physical fitness improvements by comparing power output to heart rate.

Fitness Testing & Heart Rate Control

Performing the Fitness Test

Details the steps for performing the fitness test and interpreting the 'Fitness Score'.

Recovery Test Program Guide

Explains the recovery test to measure how quickly the heart rate returns to a resting state after exercise.

Setting Up Heart Rate Control Workouts

Guides on setting up Heart Rate Control (HRC) programs based on target heart rate zones.

Program Customization & Power Training

User-Specific Heart Rate Control

Describes how to set a personalized heart rate zone for workouts using the User program.

Custom Workout Creation Guide

Instructions for creating personalized workouts by setting resistance levels for each interval and goals.

Power Training Program Introduction

Introduces Power HIIT and Constant Power programs focused on power output (watts) goals.

Power Training Program Details

POWER HIIT Interval Training

Details the POWER HIIT program, including setting high and low target watts for intervals.

CONSTANT POWER Program Setup

Explains the CONSTANT POWER program for setting target watts with time or distance goals.

Changing Workouts Mid-Session

Instructions on how to switch workout programs during an active session.

Workout Results & Data Tracking

Pausing, Continuing, and Stopping

Explains how to pause, continue, or stop a workout and the console's messages during these states.

Viewing Workout Results & Cool Down

Describes how workout results are displayed and the function of the cool down period.

Goal Track Statistics Overview

Details how workout statistics are recorded and viewed within user profiles.

Goal Track Statistics & Data Management

Viewing Historical Workout Data

Guides on viewing workout statistics like last workout, last 7/30 days, longest workout, and calorie records.

Body Mass Index (BMI) Calculation

Explains BMI measurement and provides a table for rating BMI scores based on weight and height.

Saving & Clearing Workout Data

Instructions on saving workout statistics to a USB drive and clearing user workout data.

Console Setup Mode Configuration

Studio Mode Setup & Usage

Explains how to configure the machine for a studio (non-home) environment and its implications.

Console Setup Options Guide

Guides through setting date, time, units, sound settings, and resetting the console.

Equipment Maintenance Procedures

General Daily & Weekly Cleaning

Provides daily, weekly, and monthly maintenance tasks to keep the equipment in good condition.

Pedal & Crank Arm Tightening

Emphasizes checking and tightening pedals and crank arms for safety and performance.

Heart Rate Chest Strap Maintenance

Chest Strap Battery Replacement

Step-by-step instructions for replacing the CR2032 battery in the heart rate chest strap.

Maintenance Parts Identification

Troubleshooting Common Issues

Power & Display Troubleshooting

Troubleshooting steps for issues related to the console display and power.

Heart Rate Monitoring Issues

Addresses problems with contact or telemetric heart rate display, including interference.

Speed & RPM Reading Errors

Troubleshooting steps for when the unit does not display speed or RPM readings.

Troubleshooting Operation Problems

Resistance & Operation Faults

Troubleshoots problems where the resistance does not change or the machine operates incorrectly.

Console Power & Unit Stability

Addresses the console shutting off unexpectedly, unit rocking, or loose pedals.

Pedaling Sounds & Seat Issues

Troubleshoots clicking sounds during pedaling and seat post movement issues.

Troubleshooting Console & Sync Issues

Console Cycling & User Mode

Resolves issues with the console cycling through screens or the active user not changing.

Bluetooth® Syncing & App Connectivity

Troubleshoots workout result syncing issues with Bluetooth-enabled devices and fitness apps.

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Nautilus U628 User Manual

Table of Contents

Other manuals for Nautilus U628

Questions and Answers:

Nautilus U628 Specifications

Summary

Important Safety Instructions

General Assembly & Operation Safety

Pre-Use Safety Checks & Warnings

Safety, Labels, and Grounding

Warning Labels & Serial Number

Electrical Grounding Instructions

Equipment Specifications & Setup

Technical Specifications Overview

Pre-Assembly Location Advice

Parts Identification

Assembly Hardware & Tools

Included Hardware Components

Required Assembly Tools

Assembly Instructions - Part 1

Stabilizers & Console Mast Assembly

Assembly Instructions - Part 2

Handlebar Installation on Mast

Assembly Instructions - Part 3

Console Unit Installation

Assembly Instructions - Part 4

Console Shroud & Seat Post Install

Assembly Instructions - Part 5

Seat & Pedal Installation

Assembly Instructions - Part 6

Final Assembly Checks

Getting Started

Leveling the Bike for Stability

Safely Moving the Bike

Key Features Overview

Console Features & Controls

Console Keypad Functions

Console Display Layout Explained

Console Display Details

Program & Intensity Displays

Heart Rate & Goal Displays

Console Data Metrics

Speed, Time, Distance Metrics

Level, RPM, Heart Rate Metrics

Watts & Calories Metrics

Connectivity & Heart Rate Monitoring

Bluetooth® App Connectivity

Heart Rate Chest Strap Usage

Advanced Heart Rate Monitoring

Remote HR Monitor & Troubleshooting

Contact HR Sensor Operation

Heart Rate Calculation Basics

Heart Rate Zones & Audio Features

Fat-Burning Target HR Zones

Remote Resistance Controls

Speaker & Audio Cable Use

Basic Operation Guidelines

Attire & Exercise Frequency

Seat Adjustment Procedure

Pedal Strap & Foot Placement

Power-Up & Auto Shut-Off Modes

Console Setup & User Profiles

Initial Console Setup Process

Quick Start Manual Program

Creating & Managing User Profiles

User Profile Management Details

Editing User Profile Information

Scan & Wireless HR Settings

Customizing Lower Display Output

Workout Program Options

Adjusting Resistance Levels

Profile Program Categories

Advanced Workout Program Selection

Selecting Profile Programs & Goals

Fitness Test Procedure Explained

Fitness Testing & Heart Rate Control

Performing the Fitness Test

Recovery Test Program Guide

Setting Up Heart Rate Control Workouts

Program Customization & Power Training