Precor 9.21 Service Manual page 7

Procedure 2.2 - Accessing the Diagnostic Program
Units built after July 20, 1997 used the standard access codes. The keys on the display are
hypothetically numbered for 1 to 7 from left to right. Therefore, ENTER would be key 1, INCLINE
would be key 2, etc. (see Diagram 2.1or 2.2) or on a 9.21i or 9.21Si INCLINE
1, INCLINE
would be key 2, etc. (see Diagram 2.3).
Placing the unit in the diagnostic mode causes the software to perform the following operations:
a. Test the LED's mounted on the upper PCA;
b. Provide the option of calibrating the lift system;
c. Display the drive motor power bits;
d. Display and test the heart rate function;
e. Display the error code log;
f. Provide a method of checking the operation of the keys on the electronic console;
g. Test the circuit breaker trip function.
1. Plug the power cord into the wall outlet, then turn on the treadmill with the circuit breaker.
Press keys RESET,5,1,7,6,5,7,6,1, sequentially.
2.
3. Following the version number, a horizontal line sweeps from top to bottom and then a
vertical line sweeps from right to left.
Note:
The lines check the LEDs mounted on the upper PCA. If the lines are broken when they sweep
across the electronic console, replace the upper PCA.
4. After the LED test, the electronic console displays the potentiometer increment number.
Press the INCLINE keys. Verify that the running bed inclines and declines as the INCLINE
5.
and DECLINE keys are pressed.
6. Watch the electronic console. When the potentiometer increment number is displayed on
the electronic console, enter power bit mode by starting the running belt.
July 20, 1997)
9.21, 9.21i, 9.21S, 9.21Si Treadmill
(after
would be key
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