Merlin Powerlift Betriebsanleitung PDF herunterladen (Seite 20)

DIAGNOSTIC CHART

Possible limit switch

error on start up.

Possible RPM sensor

failure. Unplug to reset.

Safety reversing sensors

slightly misaligned

(dim or flashing LED).

Door control or

wire shorted.

Safety reversing sensors

wire shorted or black/white

wire reversed.

Safety reversing sensors

wire open (broken or dis-

connected).

1 FLASH

2 FLASHES

3 FLASHES

4 FLASHES

5 FLASHES

6 FLASHES

System failure

10 to 15 FLASHES

Symptom: One or both of the indicator lights on the IR Beams are not on

steadily.

• Inspect sensor wires for an electrical short (eg. staple in wire), correct wiring polar-

ity (black/white wires reversed), broken or disconnected wires, replace/attach as

needed.

• Disconnect all wires from the opener.

• Remove beams from brackets and shorten sensor wires to 30-60mm (1-2”) from

back of each sensor.

• Re-attach sending eye to opener using shortened wires. If sending eye indicator

light glows steadily, attach the receiving eye.

• Align beams. If the indicator lights glow, replace the wires for the beams. If the sen-

sor indicator lights do not light up, replace the IR Beams.

Symptom: LED is not lit on door control.

• Check polarity of the wire connection to the opener.

• Inspect door control/wires for an electrical short (eg. staple in wire), replace as need-

ed.

• Disconnect wires at door control, touch wires together. If opener activates, replace

door control.

• If opener does not activate, disconnect door control wires from opener. Momentarily

short across red and white terminals with jumper wire. If opener activates, replace

door control wires.

Symptom: Sending indicator light glows steadily, receiving indicator light is

dim or flashing.

• Realign receiving eye sensor, clean lens and secure brackets.

Symptom: The RPM Sensor = Short travel 150-200mm (6-8").

• Unplug unit to reset. Try to operate opener. Check diagnostic code.

• If it is still flashing 5 times and opener moves 150-200mm (6-8"), the RPM sensor

may need to be replaced, for details contact your Chamberlain Merlin Professional

Dealer.

Symptom: Door will not open or close

• Turn the power off. Wait 10 seconds.

• Turn power back on. If opener fails to operate correctly after resetting, contact

your Chamberlain Merlin Professional Dealer.

Symptom: Opener will not open or close the door

• Turn the power off. Wait 10 seconds.

• Turn power back on. If opener fails to operate correctly after resetting, contact your

Chamberlain Merlin Professional Dealer.

(report the number of flashes as the fault reference).

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