Where can I get an electrical schematic diagram for a lifefitness 9500hr dovetail recumbent bike? Want to trace the heart rate wiring plus other areas.

Replacement Parts for Fitness Exercise Equipment at SPORTSMITH

If the battery continues to fail, I would check the alternator brushes and see if they need to be replaced. Chances are they are worn and the battery is not being recharged sufficiently.

Battery 6 Volt 2 5 Amp Hr LifeFitness 0017 00003 0685 SPORTSMITH net

The Lifefitness Lifesyscle 9500HR battery location is at in the lower portion of the recumbent bike. This is a 1/2 to one hour task for most do it yourself'er.
In order to gain access to the battery compartment,you has to remove the pedals.
The center cover has to be remove.
The 6V battery will be within 12" from the pedals.

Additional reference: Lifecycle Battery 0819-0012 Model Description Terminal Volts AH L W H Lbs Price 0819-0012 Fits Lifecycle Stairmaster series 4200, 4400 - Lifecycle Lifefitness CT8500, CT9100, 9500HR, 95Ci - Star Trac 5300/6300, 5400/6400, StarTrac 6100 Pro, 6200 Elite, ET4600 (0819-0012 replaces the 0819-1006) F2 6 2.5 4.48 1.81 2.75 2 $19.80

Star Trac Pro Upright Bike Owner's Manual - ManualsLib

www.manualslib.com > ... > Exercise Bike > Pro Upright Bike
Exercise Bike Star Trac Upright Sport Bike Owner's Manual. Stationary sport bike (28 pages) ... Pro Upright Bike Pro Recumbent Bike ' W N E R A N U A L..

If this unit has not been used for that period of time then the 6v batt has died ans needs replacing call National Gym Parts @ 1-800-496-7278 to order part# LC001.5
HERE IS THE PROCEDURE TO REPLACE THE BATT:
Tilt the bike on its side, remove mounting screws securing the battery to the bracket. Remove the battery just enough to access and disconnect the black (neg) wire from the (-) terminal and the red (pos) wire form the (+) terminal. Replace battery and reverse procedure when installing battery

This unit takes a special 6 volt battery. The battery is in one of two places. First place to look is under the unit. If you lay the bike over on its side there is an opening in the covers. If the battery is not there then you will need to take one of the side covers off. When you get the side off you cannot miss it. The battery is black with three cylinders. You can get the battery from sportsmith.net.

I am asuming you tested the drive motor, did any burning smell eminating from the motor? We do have a short in that board if that is still on your bench I would trace where those conponents are going to and use if you have a portable Dc power supply with voltage and current displays I would set power supply at a lower voltage ( 1v to 2v ) take grd lead to grd and use red for the purpose of isolating the short could be in the bank of IGBT's Caps shorted etc depending on location of damage.

Some of these units have the main battery ( 6v @ 2.5AH ) inside the bike frame and a 9v in the backside of the upper console

You can test the HR grips to see if the wiring is good all the way from the contact grips to the upper board by doing a test with your meter. Get a meter that can test fuses and beeps if the fuse is good.
disconnect the 4 pin brown connector at the console board, on one side will be some metal contacts.
Touch one end of the meter lead to one wire and the other to the HR contact plate on the handlebar. try all the contact plates on the handle bar until it beeps, then move the lead to the next wire and repeat until all contact plates beep. It all of them beep then your wiring is ok and the problem is in the Heart Rate board in the console or the connection point on the board.
Let me know how it turns out.

Santafe

This mean that you unit is not equiped with a receiver inside the treadmill. Some models that was an option. Polar is the only brand that works with Lifefitness. You may have a bad upper display board. You can buy a replacement for a small amount of money.

I’m happy to help further over the phone at https://www.6ya.com/expert/howard_079189dd4959a511