Question about Precor 935 Premium Series Treadmill

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Precor 935.i will not power up at all. I had the belt moving and had just stepped on it and it quit. No lights, nothing. Sounds like a circuit breaker to me. Is there a breaker I could reset or replace? Thanks

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  • sadsaddle Oct 08, 2010

    It was the breaker near the power cord. Thanks a lot.

  • sadsaddle Oct 08, 2010

    It was the breaker near the power cord.

  • Electro Med Services
    Electro Med Services Mar 18, 2013

    HI , Check this link for more details about PRECORE error codes http://electro-medical.blogspot.in/2013/...

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Hello,

Power issues with treadmills fit into two categories: the power does not turn on or the power shuts off when using the treadmill. If the power will not turn on, make sure that the treadmill is plugged into a working power outlet. In addition, you should use a single-outlet surge protector for the treadmill. Single-outlet surge protectors protect the machine from any voltage changes that may occur in your home.

If the machine is plugged into a working outlet, make sure the safety key is in the keyhole on the console. If the safety key is not plugged into the machine or if it is pulled out during operation, the treadmill will not operate.

Finally, make sure the circuit breaker located on the frame near the power cord is set to "Reset." The circuit breaker is set to "Reset" if the top of the button is pushed in. When the breaker is tripped, push it back to the "Reset" position and wait five minutes before powering on the treadmill.

If the treadmill shuts off during operation, check the power cord and circuit breaker as described above. You can also try removing and reinserting the safety key.
Take care.

Posted on Oct 08, 2010

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1 Answer

Where are the fuses on Precor 9.27


Fuse is a dead end in this case. Is there belt movement with the LS error, where the belt moves for a few seconds then quits? If so, there may be a problem with the upper - contact Precor and have them look up bulletins on that model/SN. If no belt movement, then there is a problem with either motor or MCB, probably MCB.

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Removing a user I'd password from a precor 935 2005


Procedure 2.3 - Accessing the User Parameter Program
This procedure allows you to change the following settings:

• Set Measurement Units
• Enable/Disable Password
• Set User Name

Procedure

1. Plug the power cord into the wall outlet, then turn on the treadmill with the circuit breaker.
2. Press keys STOP,5,6,7,1 sequentially.
3. The display will momentarily read SELECT UNITS
4. The currently selected measurement unit will then be displayed.
5. Use the UP, DOWN arrow keys to toggle between U.S. STANDARD and METRIC.
6. Press the ENTER key to select the currently displayed measurement unit.
7. The display will momentarily read, PASSWORD
8. Use the UP, DOWN arrow keys to select either PASSWORD ENABLED or PASSWORD DISABLED
9. Press the STOP or ENTER key to exit the program.

Dec 21, 2013 | Precor 935 Premium Series Treadmill

1 Answer

Treadmill precor 932 er05 error


Precor Error 05, Key Depressed at Power Up Probable Cause 1. A key is permanently depressed on the display.
2. An interface chip (IC) has failed in the upper PCA's keypad.
3. Liquid (cleaning solution or sweat) may be on the surface of a touch sensitive display.
Corrective Action
  1. Disconnect the keypad cable from the upper PCA. Reset power to the machine. If the Error 05 is eliminated, the keypad is the cause and should be replaced.
  2. Disconnect the keypad cable from the upper PCA. Reset power to the machine. If the Error 05 still appears, the upper PCA* is the cause and should be replaced. *Upper PCA's most commonly do not come with software. Remove the software (chip) from the existing upper PCA prior to replacement and install into the new upper PCA.
  3. Wipe away all liquid from the touch sensitive display. Reset power to the unit. If the Error 05 is eliminated, the liquid was the cause.
Precor Error Code 05

Mar 31, 2013 | Precor 935 Premium Series Treadmill

1 Answer

Precor error 20


Precor Error Code 20 Error Code: 20 Manufacturer: Precor
Model: All Models
Error Description: Error 20, Too many Maximum Power Requests in 1 Second - The error 20 observes a treadmill's power bit reading when the treadmill was operating at speeds of 1 mph or less. Power bits indicate the relative time that the motor controller drive circuit is turned on. Power bits is an indication of the amount of power the load is demanding from the motor controller. Error 20 indicates that at a speed of 1 mile per hour or less, an excessive amount of power is being demanded from the motor controller for an excessive length of time. Possible Reason:
  1. Starting the running belt under a very heavy load can cause the error 20 to appear.
    1. The user (especially a heavier user) is standing on the running belt as they start the belt into motion.
  2. A badly worn deck and/or running belt can cause the error to appear when the user steps onto the belt.
  3. Badly worn drive motor brushes may not be making proper contact with the drive motor commutator causing the error to occur when the user steps onto the running belt. The unit may also slow down or become sluggish when the user steps onto the running belt.
  4. A leaky or shorted drive motor filter capacitor (on units equipped with SCR motor controller) could increase the current demand enough to cause the error.
  5. A leaky or shorted drive motor inductor (on units equipped with SCR motor controller) could increase the current demand enough to cause the error.
  6. The high power demand is caused by a shorted or de-magnetized drive motor.
Recommended Action:
  1. Instruct the user to straddle the running belt while starting the treadmill at a low speed, such as 1mph or less, and then step onto the running belt.
  2. Determine the amount of AC input current being drawn by the unit under no load and loaded conditions using a clamp on AC ammeter. The current displayed can be used to determine the condition of the deck and/or running belt. These same readings should be taken on a like unit, in good operating condition with a known good deck and running belt. The readings from the unit in good operationg condition can be used as the benchmark. Compare readings and replace* the deck and/or running belt if necessary. *Some units have a reversible deck. Be sure if the deck is being flipped or replaced, a new belt is installed on the new deck surface.*
  3. Inspect and repalce both drive motor brushes if necessary.
  4. Measure the AC input current without a load using a clamp on AC ammeter. Electrically isolate the filter capacitor from the drive motor circuit. The drive motor leads need be kept intact so the drive motor will operate with the filter capacitor removed from the circuit. Re-measure the no load AC input. If the AC input current is significantly lower, replace the filter capacitor.
  5. Measure the AC input current without a load using a clamp on AC ammeter. Electrically isolate the inductor from the drive motor circuit. The drive motor leads need be kept intact so the drive motor will operate with the inductor removed from the circuit. Re-measure the no load AC input. If the AC input current is significantly lower, replace the inductor.
  6. Swap the existing drive motor with a known good drive motor.
Precor Error Code 20 20 Too Many Maximum Power Request in 1 Sec

Mar 18, 2013 | Precor C962i Treadmill 220V

1 Answer

Precor c966i error 20


Precor Error Code 20 Error Code: 20 Manufacturer: Precor
Model: All Models
Error Description: Error 20, Too many Maximum Power Requests in 1 Second - The error 20 observes a treadmill's power bit reading when the treadmill was operating at speeds of 1 mph or less. Power bits indicate the relative time that the motor controller drive circuit is turned on. Power bits is an indication of the amount of power the load is demanding from the motor controller. Error 20 indicates that at a speed of 1 mile per hour or less, an excessive amount of power is being demanded from the motor controller for an excessive length of time. Possible Reason:
  1. Starting the running belt under a very heavy load can cause the error 20 to appear.
    1. The user (especially a heavier user) is standing on the running belt as they start the belt into motion.
  2. A badly worn deck and/or running belt can cause the error to appear when the user steps onto the belt.
  3. Badly worn drive motor brushes may not be making proper contact with the drive motor commutator causing the error to occur when the user steps onto the running belt. The unit may also slow down or become sluggish when the user steps onto the running belt.
  4. A leaky or shorted drive motor filter capacitor (on units equipped with SCR motor controller) could increase the current demand enough to cause the error.
  5. A leaky or shorted drive motor inductor (on units equipped with SCR motor controller) could increase the current demand enough to cause the error.
  6. The high power demand is caused by a shorted or de-magnetized drive motor.
Recommended Action:
  1. Instruct the user to straddle the running belt while starting the treadmill at a low speed, such as 1mph or less, and then step onto the running belt.
  2. Determine the amount of AC input current being drawn by the unit under no load and loaded conditions using a clamp on AC ammeter. The current displayed can be used to determine the condition of the deck and/or running belt. These same readings should be taken on a like unit, in good operating condition with a known good deck and running belt. The readings from the unit in good operationg condition can be used as the benchmark. Compare readings and replace* the deck and/or running belt if necessary. *Some units have a reversible deck. Be sure if the deck is being flipped or replaced, a new belt is installed on the new deck surface.*
  3. Inspect and repalce both drive motor brushes if necessary.
  4. Measure the AC input current without a load using a clamp on AC ammeter. Electrically isolate the filter capacitor from the drive motor circuit. The drive motor leads need be kept intact so the drive motor will operate with the filter capacitor removed from the circuit. Re-measure the no load AC input. If the AC input current is significantly lower, replace the filter capacitor.
  5. Measure the AC input current without a load using a clamp on AC ammeter. Electrically isolate the inductor from the drive motor circuit. The drive motor leads need be kept intact so the drive motor will operate with the inductor removed from the circuit. Re-measure the no load AC input. If the AC input current is significantly lower, replace the inductor.
  6. Swap the existing drive motor with a known good drive motor.
Precor Error Code 20 20 Too Many Maximum Power Request in 1 Sec

Mar 18, 2013 | Precor C966i Treadmill C 966i

1 Answer

Precor 9.33i belt slows down when i step on. Runs fine without me on it


It is the aluminum rollers they used in manufacturing. Precor will replace the rollers with steel and the belt for labor only (it was about $80 for me in Idaho) It has worked like a champ since.

Feb 28, 2012 | Precor Exercise & Fitness

1 Answer

I have a precor 935 that is showing error 5 stuck key that wont clear. any ideas


Precor Error 05, Key Depressed at Power Up Probable Cause 1. A key is permanently depressed on the display.
2. An interface chip (IC) has failed in the upper PCA's keypad.
3. Liquid (cleaning solution or sweat) may be on the surface of a touch sensitive display.
Corrective Action
  1. Disconnect the keypad cable from the upper PCA. Reset power to the machine. If the Error 05 is eliminated, the keypad is the cause and should be replaced.
  2. Disconnect the keypad cable from the upper PCA. Reset power to the machine. If the Error 05 still appears, the upper PCA* is the cause and should be replaced. *Upper PCA's most commonly do not come with software. Remove the software (chip) from the existing upper PCA prior to replacement and install into the new upper PCA.
  3. Wipe away all liquid from the touch sensitive display. Reset power to the unit. If the Error 05 is eliminated, the liquid was the cause.
Precor Error Code 05

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2 Answers

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Is it on an extension cord? Take it off any extension cords and make sure it's on a dedicated 120v circuit. No other items on the circuit. Also, how old is it? Precor made a bunch of the 9.3x series from 2002-2005 with an aluminum tail roller that can cause problems. Check the back roller. Is is silver and non-magnetic? if that's the case, you have an aluminum roller and you need to contact precor. If you're the original owner of the machine, they should warranty the replacement of the parts, if not, you'll have to buy at the very least a running belt and new roller.

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