Issue:
Clear Language Display (CLD 1U6 module) is blank
Resolution:
Validate the following:
- The ribbon cables connecting the 1U6 board to the touch pad and LCD display.
- The IPC link from the 1U1 module for loose wires and to verify there is a good connection.
- The 24VAC plug at TB2 for proper voltage and a good connection.
- LED's ST +5VDC TX and RX for for proper voltage and signal.
- The IPC link from all modules except 1U1 and 1U6 can be isolated to check if other modules might be causing the display problem.
Notes:
Changes:
Other Question/Problem/Cause Statements:
- No LCD display from 1U6 module
Facts:
- Air-Cooled Chiller (Pueblo) (RTAA 70-125 Ton)
Document Identifier: DOC-82679
WARNING:
Information in this article is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience and who comply with all federal, state, and local laws, rules, orders, or regulations related to the installation, service, or repair of a heating or central air conditioning product. Any attempt to install, service, or repair a heating or central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of the information contained herein, nor can it assume any liability in connection with its use.