Crafco EZ 500 Series II, Manual

Page: 85 / 136

EZ 500 Series II Melter Part Manual
Chapter 8 Troubleshooting
©2019 by Crafco, Inc. All Rights Reserved………………...………………………………..……………...Troubleshooting 8-33
Step Possible Cause If . . .
15 Is there 12Vdc between pink wire labeled
“PNK-3 on the upper terminal block and a
nearby ground source black wire?
•
Yes, check for loose or broken wire
between terminal block and hose selector
switch.
•
No go to Step 9a.
15a
Is there 12Vdc between pink wire labeled
“PNK-2” on upper terminal block and nearby
ground source black wire?
•
Yes, replace terminal block.
•
No, go to Table 8-16 Mixer Electrical
Troubleshooting (continued) Steps 4a
through 10a.
GR
N
PR
P
BL
U
RED-3
RED-4 RED-1
Acc
B
RI
C Br
Ra
BLK-5
PRP-2
BLK-5
BLU-2
PNK-3
GR
N
PR
P
BL
U
RED-9
ORN-2
PNK-4
PRP-3
PRP-1
RED-TRIG
BLK-1
BLK GND
PNK-2
ORN-1
BLK-4
BLU-1&BLU-GEN
PNK-1
BLU PMP
GRN TRIG
BR
N-
3
BL
K-
11
WH
T-
3
RED-8
W
HT
-4
BL
K-
12
BRN-3 BRN-PUMP REV #1
BLU-PMP FWD #2
BLK
WHT
BLK-10
WHT-2
BLK-16
BL
K-
1
BLK-12
WHT-4
WHT-3
BLK-11
PR
P-
1
PN
K-
1
PN
K-
2
O
RN
-1
PN
K-
2
BL
K-
4
O
RN
-1
BL
K-
4
WHT-2
BLK-10
8
5
4 1
14
13
12
9
PRP-2
BLK-15
RED-1
W
HT
BL
K
PRP-3
PN
K-
3
PN
K-
4
RED-2
O
RN
-2
OR
N
-2
BL
K-
5
RED-4
CUT BACK 1.5" & SOLDER
DIODE WITH SILVER MARK
TOWARDS TERMINAL BLOCK
COVER WITH 1.5" OF 51532
BLU-PMP REV #1
HOSE
51691
MATERIAL
51672
HOT OIL
43391
MAT'L HOSE
RED - 9
BRN-PUMP FWD #2 BLU PMP
MOUNT SWITCH
NOTCH DOWN
BL
U
-P
M
P
FW
D
#
2
BR
N
-P
M
P
R
EV
#
1
BL
U
-P
M
P
RE
V
#
1
BR
N
-P
M
P
FW
D
#
2
GENERATOR
HOSE
WAND
t°
TRIGGER
BLUE
BLUE
BLUE BLUE
BLUE
BLUE BLACK
WHITE
GREEN
BATT.
RTD Sensor
1.08K Ohms @70°F
LID SWITCH
DRIVERS SIDE
LID SWITCH
PASS. SIDE
PUMP
FORWARD
(12 Vdc @
2.72 Amps)
PUMP
REVERSE
(12 Vdc @
2.72 Amps)
RED
RED
RED RED
BRN
BLU
BRN
BLU
RE
D
-L
ID
RE
D-
LI
D
RED-8 RED LID P.S.
BL
K-
GN
D
GR
N-
TR
G
RE
D-
TR
G
Table 8-30 Pump Electrical Troubleshooting (continued)
Fig. 8.11 Pump Circuit Schematic