Nordic Track treadmill trips GFI.

If the electrical outlets work and are fine unplug the treadmill and then check the power cord for any damage. Replace the power cord if it's damaged. If the power cord is fine and looks fine then check the circuit breaker switch on the treadmill and reset the circuit breaker switch if it's tripped.

If you wish to get some details about treadmill repair ; visit the site linked here. Pull up older posts. http://electro-medical.blogspot.com/

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achiever bc 887 Treadmills Questions & Answers - Fixya

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Treadmills achiever bc 887 questions and answers. Ask your ... Where is the ENTER button? please follow the instr.manual if you do not have it download it from ..

Draining too much current for the breaker! Plug it into a circuit with a higher fuse!

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did you check the circuit breaker on the front of the machine the the power cord goes in. it could of tripped

Is the wall receptacle defective? Have you plugged something else into the same wall receptacle without circuit breaker activating? Test with another appliance that also has the third round ground prong. If this is not the problem then yes an electrical short exists within the treadmill, inspect the cord itself for loose prongs, there may be liquid damage inside from a previous liquid spillage which would cause an electrical short.

1( tight the ribbon cable and clean it,
2) tight the plug from display board , and clean it.
3) tight the display board vs lower board and clean it unplugged the power
4) test the fuse and replace if necessary or c.breaker reset.
5( Finally adjust the REED SWITCH , clean it and tight the plug very well see the diagram attached.
6) see the block attached. finally the display board can be faulty.
God bless you

1) you must LUBE THE DECK BELT+ ROLLER BEARING.

2) Test the input voltage motor, if there are the MOTOR is faulty need REPAIR.

3) Test the output voltage board, for input voltage motor, if there are NOT the board is faulty.
4) SEE THE BLOCK DIAGRAM, whatever component can be faulty.
However you must test the power cord for short circuit between cable, repair, and look inside according the BLOCK, and proceed with logic, see any loose wires, or some wires touching the carcase, some filter, coil, power supply USE the VOM.
God bless you

Watch this video:
http://www.youtube.com/watch?v=E-q-uS4t6so
1. Power

o 1

Ensure that the treadmill is plugged into a grounded outlet using the correct surge suppressor. Use a UL 1449 suppressor listed as a transient voltage surge suppressor (TVSS). It must be rated for 15 amps and 120 volts AC. Secure the services of an electrician if the outlet is not grounded, or move the Proform treadmill near a grounded outlet. Do not use an extension cord.

o 2

Insert the safety key fully into the display. Treadmills with keys are designed not to turn on without the safety key in place.

o 3

Find the circuit breaker on the front of the frame and make sure it is not tripped. The circuit breaker is a vertical switch on the 540S and a horizontal switch on the 540 Interactive Trainer. Press it to the "Reset" position, which will be labeled.
2. Reed Switch

o 1

Unplug the treadmill and remove the safety key.

o 2

Move the upright base of the treadmill down with the help of another person and lift the uprights so that you can get to the underside of the console. Use a Phillips screwdriver with at least a 5-inch shaft to remove the screws. There are five hood screws on the 540 Interactive trainer and four screws on the 540S.

o 3

Remove the motor hood to get to the small reed switch by pivoting the hood off the frame. Find the reed switch and magnet, which are on the left side of the pulley for both models.

o 4

Turn the pulley with your hand until the reed switch aligns with the magnet. There should be 1/8-inch gap between the two. Fix the distance so that it is 1/8 inch by loosening the reed switch screw and sliding it to the correct distance. Tighten the screw.

o 5

Reverse the directions to put the hood back on and the treadmill upright in the original position.
Check too:Optical Sensor. If have it