20 Most Recent Epic 400 Mx Treadmill Questions & Answers

Replacement Parts for Fitness Exercise Equipment at SPORTSMITH

We have a diagram and plenty of parts for your model. Please use the following link and have your serial number available.

400 Series SPORTSMITH net

Epic 400 Mx... | Answered on Oct 16, 2015

You must test the thermostat from Motor with tester DMM if si open inside of the motor. If the thermostat if open, you must go to the motor shop for repair or replace by new one. Normally this winding is overheating by normal use+spike on the line. Must put in the line spike protector+control voltage device.

Epic 400 Mx... | Answered on Oct 04, 2015

motor brushes are bad. when they wear out, the motor loses torque and draws more amps. they can be replaced fairly easily once you get the motors out.

Epic 400 Mx... | Answered on Oct 03, 2015

Here is a solution for those of you who have experienced recurring dead buttons on the console. For me, all buttons would function initially but after a few minutes of use (belt running), all buttons would stop functioning except speed buttons 5, 7 and 12. Switch off, unplug the treadmill and all button functions would come back on next power-up hours later.
The problem is that the electronics cannot handle the static electricity generated by the running belt motion. The static in your finger as you press the button penetrates the thin membrane switch and goes right into the electronics. It takes several hours turned off for the excess charge to dissipate and control to be restored.

1. Gently peel the button decal off for both sides (incline and speed), do not remove or pull on the flex circuit underneath. This is the membrane switch.

2. Use the decals (sticky side up) to trace the outline on paper and tin foil and carefully cut out the profiles.


3. Stick the paper in using looped or double sided tape, careful not to place tape over or near a button locations. I used white printer paper because it is not very thick. A layer too thick pay prevent the button from working.


4. Place tin foil cutout over the paper. The foil needs to be connected to earth ground (the 3rd pin on the power plug) and I don't trust the frame is properly grounded so I ran a wire from the foil in the console to a grounded screw near the power switch (where the plug wire ground connects). Make sure the treadmill is unplugged when you are working on it! The incline and speed side foil sheets are also connected with a wire.



5. Cover the foil layers with a layer of clear packing tape to protect the foil if you ever need to remove the button decals again.

6. Check function and if all is well, replace the button decals.

The paper increases the dielectric strength while the foil layer shunts the static charge of your fingers to ground. Since I made this improvement it has run perfectly! Good Luck

Epic 400 Mx... | Answered on Dec 21, 2014

The only way I found to remove the front roller was to disconnect the right side hinge (watch you fingers, it's under lots of force). Then clamp a pair of vice grips on the roller axel between the roller and support. Then use a crowbar to pry the axel (between the vice grips and base support) from the support. Make sure you disconnect the bottom plastic on the right side to avoid breaking it. Reassemble the same way. You will need quite a bit of force to reconnect the hinge. I used a ratcheting tie down to align the holes (pull the right side deck and the right side base together). There must be an easier way but I have not found one yet since the roller supports are a continuously welded u-shapped frame.

Epic 400 Mx... | Answered on Dec 13, 2014

Please RUN the software calibration for easy diagnostic and fix it.

God bless you1e6a0505-3927-48ff-8728-8706a1b83872.gif

Epic 400 Mx... | Answered on Jun 19, 2013

Hi desibdesi,

This issue that you have is an early sign of a bad Control Board. This requires new PCB (control board). This site offers spare parts for your specific model. You may call them as well at 800 750 4766, 8am-5pm Mon-Fri CST.

Hope it helps.

Thank you for using FixYa.

Epic 400 Mx... | Answered on May 20, 2011

Do you mean slipping sideways or front to back? If you mean sideways, adjust the allen bolts and the back bottom of the base. If you mean front to back, and you have had your machine for a few years, you probably need a new belt. You can order one at Treadmill Parts

Epic 400 Mx... | Answered on Apr 11, 2011

replace the drive belt

Epic 400 Mx... | Answered on Aug 13, 2010

Not finding what you are looking for?
Epic 400 Mx Treadmill Logo

24 questions posted

Ask a Question

Usually answered in minutes!

Top Epic Exercise & Fitness Experts

Ross Metcalfe
Ross Metcalfe

Level 2 Expert

135 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

The Knight
The Knight

Level 3 Expert

76204 Answers

Are you an Epic Exercise and Fitnes Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

Epic Exercise & Fitness

  • Epic Exercise & Fitness

Most Popular Question

epic 400 mx treadmill incline side

  • Exercise & Fitness