How Do I Fix EMI With My Console?

Article author
Horizon Fitness
  • Updated

PROBLEM: If the treadmill acts irregularly during a workout, there may be electromagnetic/cellular signal interference.
Symptoms of this kind of interference include the following:

  • Console display is flickering while belt is acting erratically (Slowing down, then speeding up while console display is flickering)
  • Console turns off completely and belt stops
  • Console turns off completely, but belt still runs. Engaging the emergency stop should stop the belt; resetting the emergency stop causes the belt to move while the console is off.
  • Console shows partial or incorrect numbers
  • Speed/incline may change on console without user input
  • May hear a repeating ticking/clicking sound from MCB
  • Console may turn off then back on


  1. Remove any device(s) from the reading rack and check if symptoms reoccur.
  2. Turn off the device’s cell network or place it in airplane mode.
  3. US Only: Verify if unit has an EMI kit installed. If not, send EMI shield kit PN ZMS4011056. (All T101 consoles and overlays have the copper foil EMI kit pre-installed since Aug 2021.

Click Here For a Video on Replacing the EMI filter

Affected model(s): PTM486, PTM486C, PTM734, PTM486B, PTM734B, PTM492, PTM492B,
PTM492D, PTM726, PTM726B, PTM1004, PTM1004B, PTM761



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