Fault 21: Model Number Unknown - Toro Greensmaster TriFlex 3300 Manual

Fault 21: Model Number Unknown

InfoCenter Display:
Fault Description
This fault is reported when the primary TEC-5001 has determined that the machine's model number is not
recorded in the firmware.
Circuit Description
The TEC-5001, the three cutting unit motor controllers, and the S/G controller should all recognize the model
number of the machine.
Recommended Service Actions
Step 1: Verify that the fault repeats.
1. Clear the system faults from the InfoCenter. Refer to
2. Operate the machine.
Pass The fault did not repeat. Go to
Note:
If the fault does not repeat, an isolated event has occurred.
Fail
The fault repeated. Go to Step 2.
Step 2: Use Toro DIAG to program the machine.
Use Toro DIAG to reprogram the machine. If the first attempt to reprogram the machine is unsuccessful, try
reprogramming the machine a second time.
1. Connect a PC with Toro DIAG software to the machine via a Toro DIAG Cable (Part No. 115-1944). Refer
to Toro DIAG–Quick Start (page
2. Use the Toro DIAG software to reprogram the machine in accordance with Toro DIAG User's Guide.
3. Disconnect the Toro DIAG cable from the machine.
4. Install the left-hand cover assembly.
5. Operate the machine.
Pass If reprogramming the machine was successful, go to
21) and follow the steps listed.
Fail If both attempts to reprogram the machine are unsuccessful, go to Step 3.
Step 3: Swap the primary TEC with a known good unit.
Note:
TEC controllers are programmed to specific machine model and serial numbers. TEC controllers do not
function until programmed by Toro DIAG.
____FAULT #21____
TEC 5001 MASTER
MODEL # UNKNOWN
Clearing Faults from the InfoCenter (page
Returning the Machine to Service (page 21)
22).
53
and follow the steps listed.
Returning the Machine to Service (page
19).