Edge/Edge Blanket Troubleshooting
6-11
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.
ISSUE POSSIBLE CAUSE SOLUTION
Unit Does Not Start
No Message Displayed
(continued from previous page)
13. No voltage is available
to the DC power supply
card.
Press and hold the START button.
If there is no indicator light on the
power supply card, check and re
-
place circuit breaker (CB0 or CB1),
start switch contacts or wiring, as
necessary.
•
14. DC power supply is faulty. Press and hold the START button. If
no 5VDC indicator on main control
board check and replace power
supply card or wiring to main control
card, as necessary.
•
Unit Does Not Start
Standard Display, No Error Mes
-
sage
1. PX6 is on or has failed. Check. Adjust/replace as neces
-
sary. Refer to the REPAIR chapter,
Sensors section and the appropriate
procedure.
•
Unit Does Not Start
Message reads:
CENTER STOP INTERLOCK/
!SERVICE OR CLEAR FAULT!
LEFT SIDE STOP/INTERLOCK/
!SERVICE OR CLEAR FAULT!
RIGHT SIDE STOP/INTERLOCK/
!SERVICE OR CLEAR FAULT!
1. A safety switch is open in
the starting circuit.
Locate and close any open interlock
switch.
•
Unit Does Not Start
Message reads:
CIRCUIT BREAKER TRIPPED
SERVICE OR CLEAR FAULT
or
INVERTER OR MOTOR OVER
-
LOAD
SERVICE OR CLEAR FAULT
(continued on next page)
1. A circuit breaker or motor
protector have tripped.
Locate the circuit breaker, and the
tripped motor protector and its com-
ponents on the main electrical panel
and reset it. If the breaker continues
to trip, determine and correct the
cause.
•
2. Check the motor thermostat
connections, and the tem
-
perature of the motor. If the
connections are correct,
and the motor surface is
extremely hot, the internal
motor thermostat is tripped.
When the motor has cooled, the
thermostat will automatically reset.
Check the motor load. Call the fac-
tory Service Department if the motor
thermostat trips repeatedly.
•