MDE-4813D CFN PLUS Installation Manual · February 2018
61
S
S
E
E
C
C
T
T
I
I
O
O
N
N
4
4
M
M
A
A
I
I
N
N
T
T
E
E
N
N
A
A
N
N
C
C
E
E
4
4
-
-
1
1
.
.
G
G
E
E
N
N
E
E
R
R
A
A
L
L
This section provides general maintenance instructions for the CFN PLUS as well as a
comprehensive troubleshooting guide.
4
4
-
-
2
2
.
.
T
T
R
R
O
O
U
U
B
B
L
L
E
E
S
S
H
H
O
O
O
O
T
T
I
I
N
N
G
G
The next paragraphs provide a list of common pump/system problems that may be encountered
when using the CFN PLUS system, as well as corrective action instructions, covering the following
problems related to the system and its peripherals:
•
CFN PLUS (see paragraph 4-2.1)
•
Communication to peripherals (see paragraph 4-2.2)
4-2.1. CFN PLUS Troubleshooting
The CFN PLUS troubleshooting procedure and consequent corrective actions are described in
Table 4-1. CFN PLUS Troubleshooting
Fault
Probable Cause
Checks
Corrective Action
System is down
No
communication
OrCU LEDs are
not lit
CFN PLUS main
switch is OFF
Turn main switch ON.
No 115 VAC feed
to the unit
1.
Check power at
Distribution Box.
2.
Check cabling from
Distribution Box to
the unit.
3.
Verify that power
cable is properly.
connected to unit
terminal block.
4.
Is 115 V measured at
the power input
terminal block?
Correct wiring problems if
115VAC is not measured.
