Subject: Life master T9i
Hi I have been trying to repair my life master T9i treadmill. I believe an electrical storm shorted the controller board. I had a service rep come to my home and couldn't fix it. I replaced the bridge rectifier and the 4 IGBT's (2 two prong and 2 three prong). I now get power to the board and the 6 LEDs light, the console says low level voltage error. I have the motor wires off. When I connect the thermal cutoff wires from the motor ( both blue), I short it out. (I have a short bulb socket attached to a 1500 watt bulb so I didn't do any damage. The black/white power wires (ac) are they polarity essential?. The pins read P1d and P1e. I don't know which is load and which is line. I have black to P1d. I tested motor to 12V battery and it runs fine. I was thinking the PWM has a short. Can you offer any ideas? I have been asking life fitness for a controller board schematic for over a year to no avail. Thanks
Hi I have been trying to repair my life master T9i treadmill. I believe an electrical storm shorted the controller board. I had a service rep come to my home and couldn't fix it. I replaced the bridge rectifier and the 4 IGBT's (2 two prong and 2 three prong). I now get power to the board and the 6 LEDs light, the console says low level voltage error. I have the motor wires off. When I connect the thermal cutoff wires from the motor ( both blue), I short it out. (I have a short bulb socket attached to a 1500 watt bulb so I didn't do any damage. The black/white power wires (ac) are they polarity essential?. The pins read P1d and P1e. I don't know which is load and which is line. I have black to P1d. I tested motor to 12V battery and it runs fine. I was thinking the PWM has a short. Can you offer any ideas? I have been asking life fitness for a controller board schematic for over a year to no avail. Thanks