Stairmaster 4400 PT/CL, 4600 PT/CL, 4200 PT manual Tach Test, Error Reporting

4600/4400 PT/CL CONSOLE DIAGNOSTIC TESTS

Tach Test

If you do not have resistance, perform the tach test. The tach test will tell you the tach signal, in revolutions per minute (RPMs), picked up by the console.

1.Press [ LEVEL: ^ ], [ 6 ], [ 6 ], [ENTER]. The console will display

“TAR TACH ACT.” The target tach speed of 2,000 RPMs will be shown in the upper left corner of the display window. The actual tach picked up by the console will be shown in the upper right corner of the display window.

2.Start stepping on the pedals. The number in the right hand corner of the console should increase to 2,000 RPMs (+/- 200). If the tach signal picked up by the console is less then 1,900 RPMs then there is a problem in the AC tach circuit - either with the console software, alternator (check the AC tach wire, the field wire, the diode, and the terminal posts), or the main cable.

Error Reporting

The console will display various error messages in the display window. The total amount of errors will be displayed in the upper right numeric window. Note that only the highest priority reported error will be displayed. Errors are handled in two ways. One as a non-fatal “WARNING” which will display the text message but continue system operation until the user presses the [CLEAR] key. The second way is as a fatal “ERROR” which will stop the exercise and return the system to an idle intensity state. The console will display the error text and not let the user restart the programs unless power has been turned off and then back on.

The following microprocessor errors require a console replacement; ALU ERROR, TIMER ERROR, and STATIC RAM ERROR.

Resetting the power may clear the following microprocessor errors; EEPROM ERROR, and PROGRAM ERROR. If resetting the power doesn’t work, the console may need to be replaced.

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