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89 Error Code For CBT Tractor Models

There are 3 kind of error description.

Description:

Aux 1st remote valve FLOW potentiometer is failed
Differential Lock Switch is failed in the Armrest Controller
Aux 1st remote valve FLOW potentiometer is failed

If Heater does not work,Low coolant level. Check coolant level; add if necessary, faulty thermostat, heater control valve not functioning properly ,heater core or hoses clogged or damaged. Flush cooling system. See your John Deere dealer or replace heater core or hoses.

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