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Increase resistance self powered precor - Precor EFX 546i Elliptical Version 4

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SOURCE: the resistance on my Precor elliptical 5.17 will

There is a small motor under the shroud that operates the resistance motor. It is about the size of a roll of half dollars. Have someone use a meter and check that you are getting power to this. When you turn on the machine the motor should move the resistance forward then back. You can hear this everytime you turn it on.

Posted on Mar 11, 2010


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1 Answer

Resistence doesn't increase,everthing else works fine

overlay need to replace .. first interchange the uPCB and checked

Apr 07, 2014 | Precor EFX 5.21s Elliptical Cross-Trainer

1 Answer

576i resistance not increasing precor

If the display stays at 1, then the UP button may be at fault, in which case you would need a new keypad.

Btw, I’m available to help over the phone in case u need at

Jan 02, 2014 | Precor EFX 546i Elliptical Version 4

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Resistance on precor 576i will not increase

This sounds like it's the membrane on the console faceplate. It'll have to be replaced.

Jun 23, 2017 | Exercise & Fitness

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This could be caused by either a bad lower electronic board or the brake/generator. I am attaching a link to the service manual for you for further reference.,%20C546i%20Self%20Powered%20EFX.pdf

Jun 27, 2013 | Precor EFX 546i Elliptical Version 4

1 Answer

Precor efx 546 shuts off when I need to reverse direction during a workout also, the sliding is not smooth (very difficult to push the pedals on an easy level)

Procedure 6.4 - Troubleshooting the Generator
The generator performs three functions in the EFX. First, by controlling the amount of electrical
load applied to the generator, the user's pedalling resistance is controlled. Second, the generator
is used to charge the EFX's internal battery. Lastly, one of the generators six phase output
windings is monitored to determine when the unit is in use and when it is idle. This system also
determines the stride rate by determining the operating speed (output frequency) of the
monitored generator winding.
Because this is a self powered unit, it will either be necessary to either equip the unit with the
optional external power supply or have an assistant pedal on the unit while voltage
measurements are being taken. Because of the danger of working on the unit while it is in motion
using the optional external power supply is strongly recommended.
1. Perform the generator resistance test per Procedure 5.1. If any of the resistance
measurements are significantly high or significantly low, replace the generator.
2. The following voltage reading must be taken while the unit is in motion. Extreme care must
be taken to keep meter leads, hands, etc. clear of all moving parts. Using an AC voltmeter,
measure the voltage between 1 & 3, 2 & 3, 5 & 7 and 6 & 7 on J1 of the lower PCA. All AC
voltage readings will vary depending on the unit's stride rate at the time the measurement is
taken. At a stride rate of 100 strides per minute, all three voltage readings will be
approximately 100 VAC -110 VAC.
3. If any of the six readings in step 2 are significantly low, replace the generator.

Precor Equipment Repair Parts Treadmill Belts Ramp Sleeves SPORTSMITH...

Sep 05, 2011 | Precor EFX 546i Elliptical Version 4

2 Answers

The resistance on my Precor elliptical 5.17 will not increase. All other functions on the machine work. Any ideas?

open shroud and find the circuit board unplug and plug back in all connection this may sometime clean any oxidation off the connector. this is what I've in their 546's should work on the 5.17

Feb 28, 2010 | Precor EFX 546i Elliptical Version 4

1 Answer

Change batteries in consol of elliptical, but still the resistance or tension does not change or increase

their maybe a loose connection between the upper display and function controls I would pull apart the upper display and check the connectors between the two boards

Feb 28, 2010 | Precor EFX 546i Elliptical Version 4

1 Answer

Resistance will not increase when the resistance button in pushed

try lubeing it up a bit on the spindle in the front and back

Sep 25, 2009 | Precor EFX 546i Elliptical Version 4

1 Answer

Precor c546 self generating elliptical resistance on all time

this is a common problem. We work on Precor. We can get you a cost for that panel. The membrane is defective visit us a

Aug 08, 2009 | Exercise & Fitness

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