Honeywell Series 8 I/O - Rlyextbdmssng; Redhwfail; Hartchanfail

13. Series 8 I/O Alarms and Failures
13.2. Reviewing IOM soft failures
R500 Series 8 I/O User's Guide 287
April 2017 Honeywell
185 RLYEXTBDMSSNG
Relay Extension Board Missing
Diagnostic check:
Relay Extension Board missing
Cause:
Relay Extension Board missing
Solution:
Ensure Relay Board is properly installed.
186 REDHWFAIL
Redundancy hardware failure
Diagnostic check:
Cause:
Redundancy Hardware Failure
Solution:
187 HARTCHANFAIL
IOM or IOTA HART channel failure.
Diagnostic check:
Cause:
IOM or IOTA HART Channel Failure
Solution: