Micanan Blink Codes
LED flash patterns, likely causes, and fixes for every Micanan platform.
Pro-H / Pro-HE
Heavy-duty commercial hoist operator. Control board has dual diagnostic LEDs (Status and Fault).
Where to look: Two LEDs on the main control board: STATUS (green, left) and FAULT (red, right). Located near the bottom edge of the board above the terminal block.
Normal / Standby
No faults. Operator is powered and in standby.
No action needed.
Safety Circuit Open
The external safety loop is open. Photo eye, safety edge, or emergency stop is disconnected.
1. Check all safety devices in the loop. 2. Check E-stop buttons. 3. Verify terminal connections. 4. Check for required jumper on unused safety terminals.
Safety Circuit Short
Safety circuit wiring is shorted.
1. Disconnect safety devices one by one. 2. Locate shorted device or cable. 3. Repair or replace.
Motor Overcurrent
Motor drew excessive current. Door binding, mechanical failure, or motor issue.
1. Check door balance and springs. 2. Inspect chain hoist mechanism. 3. Test motor capacitor. 4. Adjust force limits if door operates freely.
Motor Thermal Overload
Motor thermal overload relay has tripped. Excessive run time or high ambient temperature.
1. Allow the motor to cool. 2. Check thermal overload relay setting (amp rating must match motor). 3. Check ventilation. 4. Verify door is properly balanced.
Limit Switch Error
Open or close limit switch is stuck or not making contact.
1. Manually check limit switch operation. 2. Adjust limit switch cam/trigger position. 3. Check limit switch wiring. 4. Replace limit switch if defective.
Control Input Held
An open, close, or stop input is continuously active.
1. Check wall stations and external controls. 2. Disconnect inputs one by one to isolate. 3. Check for shorted timer-to-close relay.
Board Fault
Internal control board failure. Relay or processor error.
1. Power cycle (60 seconds off). 2. Check for burned components on the board. 3. Replace board if error persists.
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