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Yale ESC030AC - Page 77

Yale ESC030AC
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STATUS
CODE
DISPLAY MESSAGE RECOVERY METHOD CIRCUIT
13312-4
(cont)
13312 Automatic LH Traction
Node 4
DESCRIPTION BEHAVIOR
Damaged on/off coil driver, unable to activate
coil - (LH Node 4)
Tilt back, 4th functions, SPED 3 & 4 outputs non-op-
erational.
Probable Causes and Test Procedures
5. Verify controller drive fault:
a. Measure voltage across coil while activating coil function, is DC Voltage > 14V?
YES- Controller not at fault, replace coil.
NO- Controller faulted, contact Service Engineering.
2200 YRM 1415 Troubleshooting
73

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