D21 Processing Error - Bayer HealthCare RapidPoint 400 Series Service Manual

Message
D21 Processing Error A system error occurred.
D21 Qualifier Descriptions
D21 occurs during an interprocessor data link failure and is a fatal error
because it is not recoverable. This error can occur at any time and is
caused by internal or external operations.
D21 is cleared by shutting down the system and then restarting.
188
Probable Cause and Corrective Action
1. When prompted, shut down the system as described
in Shutting Down the System on page 256, wait
10 seconds, and then turn the system on.
2. If the message appears again, record the message and call
for technical assistance.
Service Solutions
Perform service solutions only after all other corrective
actions have been completed. If cartridge replacement does
not solve the problem:
1. Check that the resistance of the door ground is less than
2 ohms. Inspect and tighten the ground wire connection.
2. Replace the Main board.
3. Replace the power supply.
Rev. C