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Model: ALT.1Sam&apos;s Centr 5-30lb Star Rubber Dumbbell with Rack<a href="https://cdn.shopify.com/s/files/1/0754/7135/6203/files/80931-EN-V2026-07-22_UM_5-30LB_Rubber_Star_DB_SET_w_Vertical_Rack.pdf?v=1793658079" target="_blank" rel="noopener noreferrer">User Manual - English</a> (2026-7-22)<a href="https://cdn.shopify.com/s/files/1/0754/7135/6203/files/80931-FR-V2026-07-22_UM_5-30LB_Rubber_Star_DB_SET_w_Vertical_Rack.pdf?v=1793658079" target="_blank" rel="noopener noreferrer">User Manual - French</a> (2026-7-22)

Model: ALT.1. Sam's Centr 5-30lb Star Rubber Dumbbell with Rack. User Manual - English (2026-7-22). User Manual - French (2026-7-22)

Manuals

Equipment

Weights

Centr 5-30 LB Rubber Star Dumbbell Set with Rack

What are the community guidelines and rules?

What is Centr Coach and how does it work?

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A Better Centr Experience, All in One App

Getting Started

I can't log in to my account

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Understanding Apple Private Relay email issues

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Adding Sign in with Apple or Google to your account

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Can I recover a deleted account?

Account & Login

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I cancelled my subscription but was still charged

What happens when my free trial ends?

What is the refund policy?

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Understanding auto-renewal

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I was charged but my trial shouldn't have ended yet

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Understanding subscription vs one-time charges

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I was charged incorrectly

I see duplicate charges

Disputing a charge with my bank

Managing your Apple App Store subscription

Managing your Google Play subscription

How do I cancel my subscription?

Managing your web subscription (centr.com)

Subscription & Billing

What if I miss a day in my program?

How do I log weights and reps?

Why isn't my workout marking as complete?

How do I skip or modify exercises?

What types of workouts are available?

Can I play my own music during workouts?

How do I browse available workouts?

How do I search for specific workouts?

How do I filter workouts by equipment?

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How do I find workouts for my fitness level?

What programs are available?

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Can I do multiple programs at once?

How do I restart a program?

How do I customize my workout plan?

How do I view my workout history?

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How do I adjust video quality?

Understanding rest timers and intervals

How do I track my strength gains?

Workouts & Programs

How does the meal planner work?

How do I set my dietary preferences?

How do I handle food allergies?

Can I customize portion sizes?

How do I swap meals?

How do I plan for a family?

How do I use the shopping list?

How do I meal prep efficiently?

Understanding serving sizes

Can I save favorite recipes?

How do I log my meals?

Nutrition & Meals

How do I manage data usage?

How do I adjust notification preferences?

How do I access meditation content?

How do I save workouts to favorites?

Understanding rest timers and workout intervals

How do I connect my Apple Watch?

How do I cast to Chromecast?

How do I use AirPlay?

How to screen mirror your Centr workouts (iOS)

App Features & Settings

The app crashes when I open it

Videos won't play or keep buffering

I keep getting logged out of the app (Android)

App stuck on CENTR logo

The app is freezing or unresponsive

The app is running slowly

I see a blank or white screen

Content isn't loading properly

Login problems after v8.0 update

My workouts disappeared after app update

Video quality is poor

Audio is out of sync

My progress isn't syncing

Workouts aren't marking as complete

My data is missing or incorrect

Multiple device sync issues

Slow loading times

Should I delete and reinstall?

How do I provide feedback about CENTR?

Troubleshooting

Subscription Renewal Update

Centr Login Update & How To Prepare (Before Sept. 28th)

Centr Login Update & How To Prepare (After Oct 25th)

Centr Login Update

Centr App Service Bulletins

Centr Coach App

10" & 15.6" LED Touchscreens

15" Touch Key LED Console

Tablet Holder

Consoles

FAQs

Assembly Video

Demo Video

Maintenance & Troubleshooting

Centr RUNR Treadmill

Centr RUNR-S Treadmill with 10" Screen

Centr x Hyrox Training Series Non-Motorized Treadmill

Centr X HYROX Perform Tread

Demo Videos

Inspire Series T4 & T4S Treadmill

Inspire Series T5 & T5S Treadmill

Inspire Series T7 & T7S Treadmill

Belt Alignment Video

General Treadmill Maintenance & Troubleshooting

(JUL 2025) Common Treadmill Issues – Current Solutions & Best Practices

Treadmill Service Bulletins

Centr OTA App

Firmware Updates

Inspire Tread 3 Motorized Treadmill

Discontinued Treadmills

Treadmills

Centr 1 Home Gym Functional Trainer

Centr 2 Home Gym Functional Trainer (NEW 2026)

Centr 2 Home Gym Functional Trainer

Centr 3 Home Gym Functional Trainer with Selectorized Smith Bar

Centr Power Series SF6 Smith Functional Trainer

Inspire FT1 Functional Trainer

Centr Inspire Series FT1 Pro Functional Trainer

Inspire FT2 Functional Trainer

Centr Inspire Series FT2 PRO Smith Functional Trainer

Inspire FTX & FTXC Functional Trainer

Inspire SF3 Smith Machine Functional Trainer

Inspire CG3 Functional Trainer

Discontinued Functional Trainers

Functional Trainers

Centr Multi-Gym

Centr Body Weight Home Gym Machine

Inspire BL1 Body Lift Multi-Gym

Inspire M2 Multi-Gym

Inspire M3 Multi-Gym

Multi-Gyms

Strength

ManualsUpdated 42 minutes ago