Hydronix Hydro-Control VI Installation Manual page 96

Diagnostics
Symptom: Faulty output
Possible explanation
Incorrect OPTO
module used for the
output
Wiring fault
Blown fuse
96 Hydro-Control VI Installation Guide HD0455 Rev 1.9.0
Check Required result
Voltage range for OPTO module
the output module. colour:
As a quick guide,
look at the colour of
the OPTO module Red: DC module,
by looking though
typically up to 60v
the holes in the
DC
back of the
controller.
Black: AC module,
typically up to 110v
AC
When the OPTO See User Guide for
switches on the more details.
OPTO LED should
light up. Check
wiring whilst the
OPTO is on.
Remove rear cover Continuity check
and check ok, zero ohms.
continuity of the
fuse on the specific
OPTO module
using a meter.
Appendix B
Action required on failure
Contact Hydronix for correct
OPTO module rating.
Force relay to switch on and
check wiring. Go to Menu >
I/O Setup and Status. Select
output and switch on.
Contact Hydronix for
replacement fuse.