Merlo 421: Faulty Monitor Relay

The system has detected a fault related to the Monitor Relay. This indicates that the relay is not functioning as expected, which may affect the proper operation of the connected system.

1. 1

   Monitor Relay

2. 2

   Connections to the Monitor Relay

3. 3

   Power supply to the Monitor Relay

1. 1

   Inspect

   Check the Monitor Relay for visible damage or signs of failure.

2. 2

   Test

   Verify the functionality of the Monitor Relay using a suitable testing device.

3. 3

   Replace

   If the Monitor Relay is found to be faulty, replace it with a compatible unit.