New Holland 19739 – New Holland Dosing Control Unit Dcu: Main Relay Opens Too Early or Too Late

The main relay opens at an incorrect time, either too early or too late, which can affect the proper operation of the system. This issue is related to the main relay shutting off at an improper time, indicating a potential problem with the relay's timing or control circuit.

1. 1

   Main relay operation

2. 2

   Main relay control circuit

3. 3

   Power relay control circuit

1. 1

   Inspect

   Inspect the main relay for signs of damage or wear.

2. 2

   Test

   Test the main relay to verify its timing and operation.

3. 3

   Check

   Check the main relay control circuit for continuity and proper voltage.