Chicago Dryer Edge MAXX, Instruction Manual, Page: 111 / 288

Edge MAXX Troubleshooting
6-9
WARNING
Only trained personnel with experience
in electrical or mechanical repair should
troubleshoot and repair the unit.
Troubleshooting
WARNING
Read the REPAIR chapter and make
sure that the power is disconnected
before doing any repairs.
6.3 Electrical
ISSUE POSSIBLE CAUSE SOLUTION
Unit Does Not Start
No Message Displayed
(continued on next page)
1. Main disconnect switch
OFF.
Turn main disconnect switch ON. •
2. One or more legs of the
main power source is
dead.
Test and repair as necessary. •
3. Fuse(s) in the main
disconnect switch have
blown.
Determine and correct cause before
replacing fuse.
•
4. Incoming power supply is
incorrect.
Check for fluctuating or incorrect
incoming voltage. Machine power
requirements are shown on the name-
plate.
•
5. 24VAC transformer T3, or
24VDC PWS1 or PWS2
is bad.
Test and replace as necessary. •
6. Circuit breaker CB3, CB4,
or CB5 is tripped, dis-
abling 24VAC circuit or
one of the 24VDC circuits.
Reset.
If circuit breaker continues to trip,
check for short in the circuit wiring and
replace any defective components.
•
•
7. Start button PB7 or one
of its associated terminal
blocks is bad.
Test and replace as necessary. •
8. Contactor or Control Relay
is bad.
Test and replace as necessary. •
9. Connections to MPC2 or
to the WAGO I/O control
module are bad.
Check connections to MPC1. Repair
as necessary.
•
10. MPC2 display/keyboard
controller circuit board in
CHI panel is bad.
Test and replace as necessary. •
11. WAGO I/O controller is
bad.
Check settings. Consult factory if
necessary.
Test and replace as necessary.
•
•
12. Control latching circuit is
defective.
Press and hold the START button. If
the screen lights up while the button is
held, but shuts off when released, refer
to Machine Starts Then Shuts Down .
•
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