Why is my HI 2151/30WC display stuck on "Hardy"?

If your HI 2110WI,  HI 2151/30WC or any Hardy controller display is stuck on the word Hardy or revision levels and stays locked after cycling power, take the following steps:

Power down the unit and remove all connections, including the Secure Memory Module (SMM), from the back of the instrument, then power back up. If the display is normal then power down and reinstall the connectors one at a time. Many times a mis-wired load cell will halt the startup process. If you have C2® a common problem is that it may be wired in reverse. Gray is plus C2 and Violet is minus C2.
CAUTION:  Connecting/disconnecting wires or SMM from the unit under power can cause a corruption in the memory of the unit.

If adding the SMM causes the display to freeze at Hardy, you will want to set the memory back to factory default settings. The following process returns the instrument to factory default parameters:

NOTE: Use approved static control device to prevent damage to components when you are handling sensitive electronics!

HARDWARE PROCEDURES: Ram Clear HI 2151/30WC or HI 2110WI
1. Remove power and open the weight controller.
2. Locate the internal dip switches. Slide internal dip-switch S2-8 to ON position.
3. Reassemble and turn on power.
4. Wait for the system self test to be completed. (The display will read TAGCLR)
5. Remove power and open the weight controller again.
6. Locate the internal dip switches. Slide internal dip-switch S2-8 back to the OFF position.
7. Reassemble and turn on power. Your memory is now at factory default setting.

Another problem that could cause a "frozen display" condition would be a loose option card. Power down the instrument and access the internal electronics of the instrument. Insure that the option card (if any) is seated properly in the socket. Press down on the eprom (designated U2 on the main controller board) and reseat in its socket.

Other displayed controllers have the return to factory default in the test/diagnostic sections.

If the preceding recommendations do not rectify the problem then the instrument must be returned to the factory for repair. You can request a Return Authorization number online.