Horizon Fitness 7.0AT-03 User manual

7.0AT-03 TREADMILLS
TM1002C
SERVICE MANUAL
ISSUED 2022-06-07
JOHNSON HEALTH INDUSTRY (VIETNAM)
V1

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Contents
SERIAL NUMBER INFORMATION ............................................................................................ 4
SERIAL NUMBER LOCATION..............................................................................................................................................4
PRODUCT RECORD..........................................................................................................................................................5
PREVENTATIVE MAINTENANCE.............................................................................................. 6
PREVENTATIVE MAINTENANCE..........................................................................................................................................6
Every Day (Daily) ...................................................................................................................................................6
Every Week (Weekly) ............................................................................................................................................6
Every Month –Important! ....................................................................................................................................6
Every 3 Months or 150 Miles.................................................................................................................................7
TENSIONING &CENTERING THE RUNNING BELT ...................................................................................................................7
CONSOLE INSTRUCTION......................................................................................................... 9
CONSOLE OPERATION .....................................................................................................................................................9
DISPLAY WINDOWS ......................................................................................................................................................10
GETTING STARTED........................................................................................................................................................11
PROGRAM INFORMATION ..............................................................................................................................................14
TARGET PROFILES ....................................................................................................................................................16
ENGINEERING MODE........................................................................................................... 18
ENGINEERING MENU OVERVIEW.....................................................................................................................................18
ENGINEERING MODE OVERVIEW.....................................................................................................................................19
TROUBLESHOOTING ............................................................................................................ 21
GENERAL TROUBLESHOOTING.........................................................................................................................................21
ELECTRICAL DIAGRAM ...................................................................................................................................................22
MCB WIRING INSTRUCTIONS .........................................................................................................................................23
TROUBLESHOOTING SUMMARY..............................................................................................................................25
NO POWER TO THE CONSOLE .........................................................................................................................................25
NO FUNCTION FOR SAFETY KEY ......................................................................................................................................26
NO RESPONSE FOR MACHINE (CONSOLE &MOTOR)..........................................................................................................26
INCLINE MOTOR ISSUE ..................................................................................................................................................27
NOISE ISSUES ..............................................................................................................................................................27
SPEAKER/AUDIO ISSUES ................................................................................................................................................28
HEART RATE FUNCTION ISSUE.........................................................................................................................................29
BLUETOOTH PAIRING ISSUE............................................................................................................................................29
PART REPLACEMENT............................................................................................................ 31
MOTOR COVER REPLACEMENT .......................................................................................................................................32
REAR ROLLER REPLACEMENT ..........................................................................................................................................33
SIDE RAIL REPLACEMENT ...............................................................................................................................................34
RUNNING DECK REPLACEMENT .......................................................................................................................................35
FRONT ROLLER REPLACEMENT ........................................................................................................................................36
RUNNING BELT REPLACEMENT........................................................................................................................................37

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MOTOR CONTROL BOARD (MCB) REPLACEMENT ..............................................................................................................39
MOTOR REPLACEMENT .................................................................................................................................................40
DRIVE BELT REPLACEMENT.............................................................................................................................................41
INCLINE MOTOR REPLACEMENT ......................................................................................................................................42
CONSOLE OVERLAY SET REPLACEMENT.............................................................................................................................44
CONSOLE CIRCUIT BOARD REPLACEMENT..........................................................................................................................45
HEART RATE GRIP AND KEYPAD REPLACEMENT..................................................................................................................47
CHANGE LOG....................................................................................................................... 48

SERIAL NUMBER INFORMATION
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Serial Number Information
Serial Number Location

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Product Record
ENTER YOUR SERIAL NUMBER AND MODEL NAME IN THE BOXES BELOW:
Refer to the SERIAL NUMBER and MODEL NAME when calling for service.

PREVENTIVE MAINTENANCE
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Preventative Maintenance
Preventative Maintenance
Preventative maintenance is the key to smoothly operating equipment, as well as keeping the user’s
liability to a minimum. Equipment needs to be inspected at regular intervals. Defective components
must be replaced immediately. Improperly working equipment must be kept out of use until it is
repaired. Ensure that any person(s) making adjustments or performing maintenance or repair of any
kind is qualified to do so.
Every Day (Daily)
Clean and inspect, following these steps:
Turn off the treadmill with the ON / OFF switch, then unplug the power cord at the wall outlet.
Wipe down the running belt, deck, motor cover, and console casing with a damp cloth. Never
use solvents, as they can cause damage to the treadmill.
Inspect the power cord. If the power cord is damaged, stop using and contact Customer
Technical Support.
Make sure the power cord is not underneath the treadmill or in any other area where it can
become pinched or cut.
Check the tension and alignment of the running belt. Make sure that the treadmill belt will not
damage any other components on the treadmill by being misaligned.
If any labels are damaged or illegible, contact Customer Technical Support for replacements.
Every Week (Weekly)
Clean underneath the treadmill following these steps:
Turn off the treadmill with the ON / OFF switch, then unplug the power cord at the wall outlet.
Fold the treadmill into the upright position, making sure that the lock latch is secured.
Move the treadmill to a remote location.
Wipe or vacuum any dust particles or other objects that may have accumulated underneath the
treadmill.
Return the treadmill to its previous position
Every Month –Important!
Turn off the treadmill with the ON / OFF switch, then unplug the power cord at the wall outlet.
Inspect all assembly bolts of the machine for proper tightness.
Remove the motor cover. Wait for ALL display screens to be off.
Clean the motor and lower board area to eliminate any lint or dust particles that may have
accumulated. Failure to do so may result in premature failure of key electrical components.
Vacuum and wipe down the belt with a damp cloth. Vacuum any black / white particles that may
accumulate around the unit. These particles may accumulate from normal treadmill use.

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Every 3 Months or 150 Miles
It is necessary to lubricate your treadmill running deck every three months or 150 miles (241 kilometers)
to maintain optimal performance.
Your treadmill came with a bottle of lubricant which can be used for two applications.
Turn off the treadmill with the on/off
switch, then unplug the power cord at the
wall outlet.
Loosen both the rear roller bolts. (For
best results, place two removable marks
on both sides of the frame and note roller
position). Once the belt is loosened, take
the bottle of lubricant and apply it to the
entire top surface of the running deck.
Tighten both rear roller bolts (matching
up the marks for proper position) to
original position. After you have applied
lubricant, plug in the power cord, insert the safety key, start the treadmill and walk on the belt or
two minutes to spread the lubricant.
Lubricate the air shocks with Teflon based spray.
When lubrication is complete, hold the “speed up” (+) and “stop” keys for seconds. This will
remove the message.
Tensioning & Centering the Running Belt
If you can feel a slipping sensation when running on the treadmill, the running belt must be tightened. In
most cases, the belt has stretched from use, causing the belt to slip. This is a normal and common
adjustment. To eliminate this slipping, turn the treadmill off and tension both the rear roller bolts using
the supplied Allen wrench, turning them ¼ turn to the right as shown. Turn the treadmill on and check for
slipping. Repeat if necessary, but never turn the roller bolts more than ¼ turn at a time. Belt is properly
tightened when the slipping sensation is gone.

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The running belt has been properly adjusted at the factory before it was shipped. At times the belt can
move off-center during shipment. Before operating the treadmill, make sure the belt is centered and
remains centered to maintain smooth operation.
If the running belt is too far to the right side: With the
treadmill running at 1 mph, turn the left adjustment bolt
counter-clockwise ¼ turn at a time (using the supplied
Allen wrench). Check the belt alignment. Allow belt to run
a full cycle to gauge if more adjustment is needed. Repeat
if necessary, until the belt remains centered during use.
If the running belt is too far to the left side: With the
treadmill running at 1mph, turn the left adjustment bolt
clockwise ¼ turn at a time (using the supplied Allen
wrench). Check the belt alignment. Allow belt to run a full
cycle to gauge if more adjustment is needed. Repeat if
necessary, until the belt remains centered during use.

CONSOLE INSTRUCTION
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Console Instruction
Console Operation
Note: There is a thin protective sheet of clear plastic on the overlay of the console that should be
removed before use.
A) LCD DISPLAY WINDOWS: Watts, Pace, Calories/Hour, Heart Rate, Laps.
B) LED DISPLAY: Time, Speed, Distance, Incline, Pace, Heart Rate, and Calories.
C) WORKOUT LED INDICATORS: indicate what workout is set for the current program.
D) SELECT TARGET/WORKOUT KNOB: rotate/press to select your desired workout/target
E) START: press to begin exercising, start your workout, or resume exercising after pause.
F) STOP: press to pause/end your workout. Hold for 3 seconds to reset the console.
G) INCLINE SCROLL WHEEL: used to adjust incline in small increments (.5%).
H) SPEED SCROLL WHEEL: used to adjust speed in small increments (.1 MPH).
I) INCLINE QUICK KEYS: used to reach desired incline more quickly.
J) SPEED QUICK KEYS: used to reach desired speed more quickly.
K) FAN KEY: press to turn fan on and off.
L) FAN: personal workout fan.
M) SPEAKERS: music plays through speakers when your CD / MP3 player is connected to the console.

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N) AUDIO IN JACK: plug your CD / MP3 player into the console using the included audio adaptor
cable.
O) AUDIO OUT / HEADPHONE JACK: plug your headphones into this jack to listen to your music
through the headphones.
Note: when headphones are plugged into the headphone jack the sound will no longer come out
through the speakers.
P) USB INPUT: 1A/5V USB output power.
Q) WATER BOTTLE POCKETS: holds personal workout equipment.
R) TABLET/READING RACK: holds tablet or reading material.
S) INTERVAL KEYS: these are programmable keys. When an user is selected, they can be
programmed to a desired speed and incline setting.)
Display Windows
TIME: Shown as minutes : seconds. View the time remaining or the time elapsed in your
workout.
DISTANCE: Shown as miles. Indicates distance traveled during your workout.
SPEED: Shown as MPH. Indicates how fast your walking or running surface is moving.
INCLINE: Shown as percent. Indicates the incline of your walking or running surface.
CALORIES: Total calories burned during your workout.
HEART RATE: Shown as BPM (beats per minute). Used to monitor your heart rate (displayed
when contact is made with both pulse grips).
PACE: Indicates how many minutes it takes to complete a mile while running or walking at
your current speed.
WATTS: Indicates the power output at your current speed and incline.
CALORIES/ HOUR: Indicates the number of calories you will burn in an hour at your current
speed and incline
TRACK: Follows progress around a simulated track. Segments light up with every 50 meters
completed.
LAPS: Shows how many 400 meter (¼ mile) laps have been completed.

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Getting Started
1) Check to make sure no objects are placed on the belt that will hinder the movement of the
treadmill.
2) Plug in the power cord and turn the treadmill ON. (The ON/OFF switch is next to the power cord.)
3) Stand on the side rails of the treadmill.
4) Attach the safety key clip to part of your clothing making sure that it is secure and will not become
detached during operation.
5) Insert the safety key into the safety keyhole in the console.
6) You have two options to start your workout.
A) QUICK START UP
1. Simply press the START key to begin working out.
2. Time, distance, and calories will all count up from zero. OR…
B) SELECT A WORKOUT OR TARGET
1) Select your USER by turning the workout knob and then pressing when your desired USER is
displayed.
2) Select your WEIGHT by turning the workout knob and then pressing when your desired WEIGHT
is displayed.
3) Select your PROGRAM by turning the workout knob and then pressing when your desired
PROGRAM is displayed.
4) Adjust the SETTING by turning the workout knob and then pressing when your desired SETTING is
displayed. Note: Time and/or distance settings are selected during this step and cannot be
changed after the workout begins.
5) Press START to begin.
HOW TO PROGRAM AND USE CUSTOM INTERVAL BUTTONS
The programmable interval buttons located on the pulse rate grips are designed to help you customize
this machine to match whatever workout you like to do the most.
The LEFT and RIGHT INTERVAL BUTTONS are programmable for speed and incline.
To program the INTERVAL button, you must select a user, start the machine, set the desired speed and

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incline, press and hold the desired INTERVAL button for three seconds until the treadmill beeps. Now the
INTERVAL button is programmed to your settings. After programming the INTERVAL button, it will
remember the setting for that user until reprogrammed.
Now when the INTERVAL button is pressed, the treadmill speed and incline will change to the settings you
programmed for that button.
The most common type of workout these keys will help with is interval training. We suggest programming
one of the INTERVAL buttons to your high intensity segments and the other to your recovery segments.
Another common use is to set one INTERVAL button to your warm up and cool down settings and the
other to your desired workout settings.
These buttons should allow you to customize the settings of your treadmill to quickly fit the type of
workout you enjoy most.
TO RESET THE CONSOLE
Hold STOP key for 3 seconds.
FINISHING YOUR WORKOUT
When your workout is complete, the unit will beep. Your workout information will stay displayed on the
console for 30 seconds and then reset.
BLUETOOTH HEART RATE MONITORING
The 7.0AT is equipped with multi-channel Bluetooth which enables you to wirelessly connect compatible
Bluetooth heart rate monitoring devices to this treadmill. You will need to ensure that your wireless heart
rate monitoring device is Bluetooth 4.0 compatible and is also “open” to sharing data. Non-“open” or
“closed” devices typically only share data with their proprietary apps. The 7.0AT needs an “open” device
to receive data from the device. You may need to consult with your device’s owner’s manual or the
manufacturer to confirm if it is an open device.
Pair the receiver to the app and the console will receive the information from the tablet. To use the
Bluetooth chest strap without a tablet, press and hold the Bluetooth button to enable the console to
communicate with the receiver. When paired with the chest strap the console will not pair with a tablet.
To enable tablet communication press and hold the Bluetooth button for 5 seconds or reset power.
USING YOUR MUSIC DEVICE
The 7.0AT treadmill will connect and stream music form your compatible music device. This includes many
smart phones and traditional mp3 players.
Your 7.0AT comes equipped with Bluetooth speakers. Bluetooth compatible devices can stream music
wirelessly from your device to the speakers. You can also connect your music device via an audio cable
and stream music through the speakers. Instructions for both types of audio connection are detailed
below.
CONNECTING VIA BLUETOOTH 4.0LE
1) Check to ensure that your music device is Bluetooth 4.0 compatible
2) Go into your device’s Bluetooth settings and scan for devices.

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3) On your music device, locate the Bluetooth device list. Select your treadmill or elliptical unit that
appears on this list.
Wait for your music device to finish pairing with the unit.
4) You will know when pairing is successful when your music device shows the treadmill or elliptical unit
as now being a paired device.
WHEN UNIT IS POWERED OFF THEN BACK ON
If you turn your treadmill or elliptical unit off, or if it goes into sleep mode, the next time it is powered on
the unit will look to pair with the last music device with which it was paired. It will automatically pair at
this time.
RE-PAIRING MUSIC DEVICES
In the event that the unit cannot find the last paired music device (for example, the music device is off or
not being used) then the unit will stop looking to pair with the music device. If this happens, and if you
wish to use your music device again, then you will need to go through the pairing process listed above
and re-pair through your music device’s settings.
USING MULTIPLE MUSIC DEVICES
If multiple devices are being paired with the unit (i.e.: multiple users are using the treadmill or elliptical
unit and pairing their music devices with it) then the unit will look to pair with the last device used and
“forget” other devices. If you wish to re-pair a “forgotten” music device, then you will need to un-pair the
current paired device and then re-pair your device through the pairing procedure noted above.
CONNECTING VIA AN AUDIO CABLE
1) Connect the included AUDIO ADAPTOR CABLE to the AUDIO IN JACK on the top right of the console and
the headphone jack on your music device.
2) Use your CD / MP3 player buttons to adjust song settings.
3) Remove the AUDIO ADAPTOR CABLE when not in use.
4) If you don’t want to use the SPEAKERS, you can plug your headphones into the AUDIO OUT JACK at the
bottom of the console. This ensures that if you accidentally catch the headphone line while running, you
won’t drop your device to the ground.
AFG CONNECTED FITNESS SYSTEM
Your Horizon machine is Bluetooth ready, allowing you to use Bluetooth 4.0 technology to wirelessly
connect your device to your Horizon treadmill. Using the free downloadable AFG Fitness app will enable
you to control your treadmill’s operating functions via your device. The app will also allow you to monitor
your workout, track your progress andview your workout history. The AFG Fitnessapp can be downloaded
from either the iTunes store for iOS devices or from the Google store for Android devices.
For information about connecting your device to your Horizon treadmill, setting up the AFG Fitness App
and controlling and monitoring your workout with your device, see the AFG Connected Fitness Manual
included with your treadmill.
ZWIFT APP CONNECTION

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To pair your Horizon treadmill to Zwift:
1. Turn on the treadmill.
2. Open the Zwift app on a tablet or phone.
3. Go to the pairing screen in the Zwift app. (Make sure you are in the RUN section, not RIDE.)
4. Click on the treadmill image to pair and select your Horizon treadmill from the list.
Program Information
P1) MANUAL: Control everything about your workout –from start to finish. This program is a basic
workout with no pre-defined settings, allowing you to manually adjust the machine at any time. It begins
with an incline at 0 and speed at 0.5 mph
P2) HILL CLIMB: Simulates a hill ascent and descent. This program helps tone muscle and improve
cardiovascular ability. Incline changes and segments repeat every 30 seconds
Incline changes and segments repeat every 30 seconds.
P3) MY FIRST 5K: This 9-week program is intended for inexperienced runners looking to run their first 5k
or simply begin an exercise routine. It is designed specifically to keep you motivated and engaged,
gradually building your strength, increasing your stamina and giving you the confidence it takes to
complete your first 5k.

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P4) FAT BURN: Relatively slow and steady is the name of the game to maximize your weight-loss goals.
Promotes weight loss by increasing and decreasing the speed and incline, while keeping you in your fat
burning zone.
Speed and Incline changes, segments repeat every 30 seconds.

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P5) CUSTOM: Allows you to create and reuse your perfect workout with a combination of a specific speed,
incline and time or distance. The ultimate in personal programming. This is a time or distance based goal
program.
This program has 16 segments and each segment can be set to run for up to 10 minutes; therefore, this
program can be used to create a workout session that will last 160 minutes. This is the longest workout
that can be created on the console.
TARGET PROFILES
1. DISTANCE: Push yourself and go further during your workout with 13 distance workouts. Choose
from 1 mile, 2 miles, 5k, 5 miles, 10k, 8 miles, 15k, 10 miles, 20k, half marathon, 15 miles, 20 miles,
and marathon goals. You set your level.
Incline changes and all segments are 0.16Km.
2. CALORIES: Set goals for burning calories from 20 to 980 calories in 20 calorie increments. You set
your level to keep you in your fat burning zone.
Incline changes and all segments are 20 calories.
3. TARGET HEART RATE: This program is designed for you to improve your overall cardiovascular
fitness levels. You simply set your target heart rate. The program will then monitor and adjust the
intensity level to maintain your heart rate within your targeted range while you exercise –a
proven method to maximize your weight loss and fitness goals. A chest strap is required and must
be worn during the duration of this program. See below for calculating your target heart rate.
Calculating Your Target Heart Rate
The first step in knowing the right intensity for your training is to find out your maximum heart rate (max
HR = 220 –your age). The age-based method provides an average statistical prediction of your max HR
and is a good method for the majority of people, especially those new to heart rate training.
The most precise and accurate way of determining your individual max HR is to have it clinically tested by
a cardiologist or exercise physiologist through the use of a maximal stress test. If you are over the age of

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40, overweight, have been sedentary for several years, or have a history of heart disease in your family,
clinical testing is recommended.
This chart gives examples of the heart rate range for a 30 year old exercising at 5 different heart rate
zones. For example, a 30-year-old’s max HR is 220 –30 = 190 bpm and 90% max HR is 190 × 0.9 = 171
bpm.
Additional target heart rate notes:
1). The treadmill incline will automatically adjust to bring you near your specified heart rate.
2). If there is no heart rate detected, the unit will not change the incline.
3). If your heart rate is 25 beats over your target zone the program will shut down.

ENGINEERING MODE
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Engineering Mode
Engineering Menu Overview
To enter Engineering Mode, press and hold the incline up key and the speed down key for
3 to 5 seconds.
ENG
No
Function
Sub Function
Operation
0
Display test
0
Ready
Press incline 15 and speed 12 at the same
time for 3 seconds
1
All key light up
Press “Push to select”
2
All key light off
Press “stop”
Escape
Escape present function
Press “stop” 3 seconds
1
Hardware test
0
Ready
Clockwise rotate “push to select” to enter
ENG1
2
MAC address
Press “push to select” to enter
3
BT device
Press “push to select” to enter
Escape
Escape present function
Press “stop” 3 seconds
2
No defined
function
Not function
Clockwise rotate “push to select” to enter
Press “stop” 3 seconds to escape present
function
3
Switch
function
0
Ready
Clockwise rotate “push to select” to enter
ENG3
1
Energy save on
Press “push to select” to enter
2
Boot off (reset all Parameter)
Press “push to select” to enter
3
Unit change mile/Km (press
“stop” 3 seconds to save)
Press “push to select” to enter
Escape
Escape present function
Press “stop” 3 seconds
4
Information
0
Ready
Clockwise rotate “push to select” to enter
ENG4
1
Accumulated information
(distance and time)
Press “push to select” to enter
2
UCB version
Press “push to select” to enter
3
MCB version
Press “push to select” to enter
Escape
Escape present function
Press “stop” 3 seconds

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Engineering Mode Overview

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