Nortec MH Series - Manual (Page 80)

77 | Troubleshooting
Code Display
Message
LED System Detected Cause Corrective Action(s)
W36A Stage Hygene --
Cleaning of
media boxes in
progress
1 Cleaning cycle in
progress
1 None, normal
operation.
W37A Tank Draining --
Draining of tank
in progress 1 Tank drain in progress 1 None, normal
operation.
W40A
No W-pressure
Red
Flash
No supply water
pressure
(Reflow Only)
1 Water supply blocked /
shut off
1 Check shut off valve,
filter, pipes, etc.
2 Water treatment
system regenerating
2 Install relay to interrupt
MH safety loop while
system regenerates.
E40A Red
3 Low water pressure 3a Check filter
3b Check for leaks in
supply line.
3c Check supply water
pressure