Precor AMT Series Service Manual page 128

10 If the resistance of the AMT does not change or the AMT operation
feels inconsistent with Resistance Levels 1 and 10, troubleshoot per
AMT Base Troubleshooting Procedures
11 Check the LED's mounted on the upper PCA and the function keys
displayed on the electronic console by performing Procedure,
Accessing the P30 Diagnostic Software
(on page 58).
12 Check stride indicator for proper operation.
13 Check wireless and hand held heart rate functions.
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(on page 147) .
(on page 13) and
P80 System Settings
Page 126