Precor 9.21 Service Manual page 8

Note:
When the running belt is started, the number of power bits will be displayed. Power bits represent
the amount of power applied to the drive motor. Power bits are the product of selected speed and
applied load.
Press the SPEED
7.
decrements as the SPEED keys are pressed.
Press the STOP key to exit the power bits mode and enter the heart rate mode.
8.
9. If the heart rate option has been installed, you may test the heart rate function using a chest
strap transmitter or test transmitter.
10. Press the ENTER key to enter the error code log. The error code log will display the last 10
errors that occurred. Error 1 will be the most recent error and error 10 will be the oldest
error. If more than 10 errors occur, the most recent error will be inserted in position 1 and all
other errors will be pushed down one position. The error that was in the 10th position will be
lost. If you wish to clear the error code log, press the QUICK START and STOP keys,
simutaneously.
11. Press the ENTER key to exit the error code log and enter the key pad test.
12. Press each key one at a time the display will confirm the key that was pressed. Press the
INCLINE and SPEED
13. The next test is the circuit breaker test. Follow the instructions on the display to cause either
a test trip of the treadmill circuit breaker or exit the diagnostics program.
Diagram 2.3 - 9.21i and 9.21Si Display
and keys. Verify that the power bits number increments and
keys, simultaneously to exit the keypad test.
9.21, 9.21i, 9.21S, 9.21Si Treadmill
Page 8