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Horizon Fitness RCT 7.6 User Manual

Horizon Fitness RCT 7.6
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2007 Sears
Treadmill Service Manual
Horizon Fitness
Models
RST 5.6
RCT 7.6
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Horizon Fitness RCT 7.6 Specifications

General IconGeneral
BrandHorizon Fitness
ModelRCT 7.6
CategoryTreadmill
LanguageEnglish

Summary

Elevation Troubleshooting

Elevation Motor Runs Constantly Downward

Motor runs constantly downward upon power on.

Elevation Motor Bobs Up and Down

Motor movement is inconsistent when adjusting elevation.

Elevation Motor Does Not Reach Limits

Incline fails to reach its set limits.

Elevation Stuck Down

Incline stuck downwards; console buttons work.

Elevation Stuck at Highest Position

Incline stuck at max height, unable to lower.

Elevation Moves to Maximum on Power On

Incline moves to maximum upon powering the unit.

Incline Only Moves Upward

Incline only moves upward, not downward.

No Motor Movement Troubleshooting

Inadequate Power Supply

Insufficient electrical power supply to the unit.

Wiring Issues

Faulty or incorrectly connected electrical wiring.

Failed Motor Control Board (MCB)

The motor control board is defective.

Failed Drive Motor

The primary drive motor has malfunctioned.

Failed Optic Speed Sensor

The speed sensor optic system is not working.

Erratic Speed Troubleshooting

Belt Speed Accelerates Fast Then Stops Abruptly

Belt speed accelerates fast then stops abruptly.

Belt Speed Accelerates Quickly and Does Not Decelerate

Belt speed accelerates quickly and does not decelerate.

Unstable Running Belt Speed

The running belt speed fluctuates unpredictably.

Unexpected Speed Increase with Console Feedback

Belt speed increases unexpectedly with console feedback.

Auto Calibration Troubleshooting

Auto Calibration Fails with Belt Stopping and Error

Auto calibration fails with belt stopping and error message.

Auto Calibration Fails with No Belt Movement and Error

Auto calibration fails with no belt movement and error.

Auto Calibration Fails; Belt Runs Continuously

Auto calibration fails; belt runs continuously.

Console/Upper Board Troubleshooting

Console Blank, Power Switch Dark

Console screen is blank, power switch is off.

Console Blank, Power Switch Lit

Console screen is blank, but power switch is on.

Belt Stops and Console Resets During Workout

Belt stops and console reboots during exercise.

Fan Inoperative or Malfunctioning

The cooling fan is inoperative or faulty.

Membrane Key Pad Overlay Troubleshooting

Console Keys Unresponsive

Console buttons are unresponsive.

Safety Key/Reed Switch Troubleshooting

Display Shows Dashes Indicating Safety Key Issue

Display shows dashes, indicating safety key issue.

Heart Rate Troubleshooting

Erratic or Absent Heart Rate Function

Heart rate readings are unstable or absent.

Complete Absence of Heart Rate Data

Complete absence of heart rate data.

Proper Use Instructions for Heart Rate

Guidelines for correct operation and sensor contact.

Circuit Breaker Troubleshooting

Home Circuit Breaker Trips

The main household circuit breaker for the unit trips.

Unit's Internal Breaker Trips

The unit's internal breaker is activated.

Engineering Mode

Eng0 (Display Test)

Mode for testing all console display segments.

Eng1 (Hardware Test)

Mode for testing internal hardware components.

Eng2 (Auto Calibration)

Mode for initiating the auto calibration process.

Eng3 (Switch Function)

Mode for checking and setting unit functions like units of measure.

Eng4 (Information)

Mode for viewing accumulated usage time and distance.

Digital Drive Wiring Diagram

RST 5.6 Upper Board

RCT 7.6 Upper Board

Power Source Wiring Diagram

No Motor Movement Voltage Checkpoints

Upper Board Voltage Checkpoints

Voltage checks performed on the upper control board.

Lower Board Voltage Checkpoints

Voltage checks performed on the lower control board.

Digital Speed Sensor Connection Voltage

Voltage checks for the digital speed sensor connection.

Drive Motor Connection Voltage

Voltage checks for the drive motor connection.

Drive Motor Direct Checkpoints

Direct voltage and resistance checks on the drive motor.

Console Cable Voltage Chart (DC Volts)

Cut Console Cable Voltage Chart (DC Volts)

Incline Wire Function

Small Connector Incline Wire Function

Functionality and voltage readings for small incline wire connectors.

Large Quick Connects Incline Wire Function

Functionality and voltage readings for large incline wire connectors.

Resetting The Incline Motor After Replacing The Motor Control Board

Lubrication Procedure

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