I'm trying to locate a hood the covers the motor on a Precor 921s.

please read your owner manual. Diwnload freewww.fitnessmanualsonline.comGod bless you

1) LUBE the deck belt, this happen because the lack of maintenance schedule. maybe your have a WORN deck belt.,time to replace

2) LUBE the rollers bearing very well too
3) test the motor for maintenance repair.
see the block diagram, and see my personal TIPS.
God bless you

Precor Error Code 26 Error Code: 26 Manufacturer: Precor
Model: All Models
Error Description: Error 26, Motor Pulse Width Incorrect - Observation of the speed sensor signal and verification the signal from the speed sensor is appropriate for the requested speed. If an incorrect or erratic speed sensor signal is detected the error appears. Possible Reason:

1. The line of sight between the speed sensor and the speed sensor target is obstructed.
2. Incorrect gap between the speed sensor and the speed sensor target.
3. Incorrect adjustment of the speed sensor potentiometer (when equipped).
4. Damaged speed sensor target.

Recommended Action:

1. Using a static safe vacuum cleaner, carefully vacuum out the drive motor compartment. Be sure to thoroughly clean the area between the speed sensor and the speed sensor target.
2. Inspect the gap of the speed sensor to the speed sensor target. Proper gap is 3/16" and the speed sensor photo eye should be aimed at the larger portion of the targets wedge shaped section. If unit has a magnetic speed sensor, the gap between the end of the sensor and the flywheel tooth needs to be 3/16".
3. Locate the speed sensor potentiometer (when equipped) on the lower PCA. Set the speed sensor potentiometer to mid-range. Start the treadmill and increase speed to 6 mph. Carefully adjust the speed sensor potentiometer until the treadmill is operating the smoothest. Increase the speed to full speed and again adjust the speed sensor potentiometer until the treadmill is operating the smoothest. These two adjustments are typically small and are generally only a matter of fine tuning.
4. Inspect the speed sensor target for any scratches or tears that could cause incorrect readings. Replace the speed sensor target if necessary.

Precor Error Code 26

Do you know which version of the Precor 9.21 you have? There are a few different versions you can view here. Click on your version to view the parts list and look for "Cover, Motor" or "Motor Cover".

For instance, if you have the 9.21 (AYYZ), the proper motor cover is this part #5019749

However, this part #5005569 is listed as the proper motor cover for the 9.21 (F5), 9.21i (2X), 9.21s (F6), 9.21si (2Y), and a couple others. Make sure you have matched up your exact model number with the motor cover you need so do you not order the wrong part.

Here is a motor cover for several versions of the Precor 9.21. Not sure if that's what you're looking for or not but maybe that will be useful.. you can click on any of the equipment models listed there to browse a complete parts list.

http://www.fitnessrepairparts.com/equipment/Select/4834/Precor/9.2
Hope this helps you.

There are a few different versions of the Precor 9.21 treadmill but FitnessRepairParts has a motor cover that it says is used for several of the models: http://www.fitnessrepairparts.com/cart/ViewItem/5005569

The only place that would possibly have the motor shroud would be Precor and they may say obsolete no longer available. This particular model # is not familiar to me since the common numbers on the older treadmills are 905e, 9.1, 9.17. 9.2 etc I assuming this was not intended to be sold in the USA.. I Suggest going to Precor's website and get the appropriate phone # to call.

Hi Linda
Here is a telephone # for Precor Austria +43 64 52 3900 or you may directly email [email protected].