Error 37 - E-Stop Upper State Vs. Lower State Mismatch; Error 86, 87 - Console / Motor Controller Mismatch - P10/P30 Only - Precor TRM 885.v2 Service Manual

3. Verify the data cable connectors have dielectric grease applied – if not apply grease.
4. Remove the interconnect cable from the CSAFE connector and insert it in the correct upper
PCA connector.
5. Unplug all the components from the upper PCA and Motor Controller except, data cable, and
the AC power going to the Motor Controller. If the unit shows an error other than a
communication error, plug in components one at a time, cycling power after each new
component is plugged in. If a communication error is displayed, the last component plugged
in is the cause of the error.
6. Substitute a known good Motor Controller to determine if the Motor Controller is defective.
7. Substitute a known good upper PCA determine if the upper PCAs defective.

Error 37 - E-Stop Upper State vs. Lower State Mismatch

Description:
The error 37 is generated by the upper PCA in the console when the Motor Controller gets into
an E-Stop state and the upper PCA in the console did not know about it. The system uses pin 8
of the data cable to communicate E-Stop states between the console and the Motor Controller.
Possible Causes:
1. Connectors not seated well on emergency stop switch.
2. Pinched/broken cable
3. Contact corrosion
4. Console hardware fault
5. Motor Controller hardware fault
Possible Remedies:
1. Verify the connectors to the emergency stop switch are seated correctly
2. Visually inspect the cables to verify they are sound
3. Run Treadmill and move communications cable to try and reproduce the error – if it
reproduces, replace the cable. Be sure to apply dielectric grease to both connectors.
4. Verify Dielectric grease has been applied to both connectors of the data cable
5. If this error is persistent and none of the above solves the problem, replace the console.
6. If the console does not correct the problem, replace the Motor Controller
Error 86, 87 – Console / Motor Controller Mismatch – P10/P30 Only
Description
The software for the P10 andP30 is specific to the treadmill base upon which it is installed. If a
console is installed and the software is not correct, the console will display either an error 86 or
87.
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