Chamberlain ESTATE SERIES SW 2000-X3 - Manual (Page 35)

29 of 42 Doc 01-20099 Rev F
C. FAULTS AND THEIR CAUSES
1. IF OBSTRUCTION LED IS ON
1. The gate is blocked by an object.
2. OBSTRUCTION or STARTUP adjustment is set too low.
3. Cold weather: frozen motor or frozen gate wheels.
4. The Maglock does not disengage from the gate at the start of gate opening.
5. A sudden increase in input power.
6. Bad Control board.
7. Belt is too tight.
2. IF INTERRUPT BAR LED IS TURNED ON
Edge Sensor is activated. Clear obstruction and cycle the gate.
3. IF OPEN MTR LED IS TURNED ON
1. The motor thermal overload switch is popped.
2. The wires connecting the motor to the Control Board are disconnected
3. Bad motor.
4. Bad Control Board.
4. IF STUCK-LIMIT LED IS TURNED ON
1. A limit switch is stuck closed.
2. The belt was broken before the start of the gate movement.
3. Stalled motor at open or close limit.
4. Bad limit switch.
5. IF MAX RUN TIME LED IS TURNED ON
1. Limit cams do not engage the limit switches.
2. The belt or chain has been broken.
3. The belt slips during gate movement.
4. Limit switch cable is disconnected.
5. Bad limit switch.
6. Stalled motor.