Horizon Fitness 77.0AT-04 TM1021 Troubleshooting Guide
![Horizon Fitness 77.0AT-04 TM1021 Treadmill manual cover](/images/mvQFkfNPDVVpNrZJptNvyaFm/thumbs/thumb175x175.webp)
Begin by placing the treadmill on a level surface. Ensure that all parts are securely attached. Plug the power cord into a grounded outlet. Follow the assembly instructions in the manual to attach any components not already assembled.
Check the belt tension by lifting the belt in the center. Adjust the tension using the adjustment bolts at the rear of the treadmill, turning them clockwise to tighten. Ensure the deck is lubricated as per the user manual.
Press and hold the 'incline' and 'stop' buttons simultaneously for several seconds until the display changes. Follow the on-screen instructions to complete the calibration process.
Regularly clean the belt and deck with a damp cloth to remove dust and dirt. Lubricate the deck every 150 miles or as recommended in the manual. Check for loose bolts and tighten them if necessary.
Ensure the power cord is plugged into a working outlet. Check the circuit breaker on the treadmill frame and reset it if tripped. Inspect the power switch on the console to ensure it is turned on.
This could be due to a safety key being dislodged, a power supply issue, or an overload condition. Ensure the safety key is securely in place and check the power connections. Reduce the speed and incline to a manageable level.
Enter the settings mode by pressing the speed 'up' and 'down' buttons simultaneously. Use the console to recalibrate the speed settings, following the instructions provided in the user manual.
Signs include fraying edges, slipping, a slowdown in speed, or unusual noises. If any of these are observed, inspect the belt for wear and consider replacing it if necessary.
Turn off and unplug the treadmill before cleaning. Use a soft, damp cloth to wipe down the belt and console. Avoid using harsh chemicals or excessive moisture, which may damage the components.
Refer to the error code section in the user manual for specific troubleshooting steps. Common solutions include resetting the console, checking cable connections, or consulting customer support if the issue persists.