Alpha 2000 Operations Instructions download pdf (Page 24)

Operator "runs a short distance in the

"Opening" direction then stops

completely for no apparent reason.

SYMPTOM 7 :-

SOLUTIONS 7 :-

Check the "UP" Overload Sensor. The "UP"

sensitivity may be set to be too sensitive.

Increase the "opening force" by moving the

Sensor Adjustment Lever one notch at a

time as indicated on the PC Board.

SYMPTOM 8 :-

Operator works from the Wall Push-

button, but not from the remote

Transmitter.

Operator works in one direction only.

Door "opens", but will not "close".

Door "closes", but will not "open".

SYMPTOM 5 :-

SOLUTIONS 5 :-

SOLUTIONS 6 :-

Check the “Down" Overload Sensor. The

"Down" sensitivity may be set to be too

sensitive.

Increase the "closing force" by moving

Sensor Adjustment Lever "one notch at a

time" as indicated on the PC Board.

Operator "runs" a short distance in the

"closing" direction", then stops for no

apparent reason and then reverses it's

direction, "runs" a short distance again

then stops completely.

SYMPTOM 6 :-

SOLUTIONS 8 :-

8.1 Check the Battery in the Transmitter.

Replace the battery at least every 6

months.

Keep a spare Transmitter in a safe

place for use in an emergency !

8.2 Check that the codes of both the

Transmitter and the Receiver are

identical to each other.

8.3 Check that the wires from the Receiver

to the operator are properly connected.

8.4 Check that the Transmitter is working

correctly.

8.5 Check that the Receiver is functioning

correctly.

TROUBLE SHOOTING GUIDE

( Section 13 continued )

Operator works but the Courtesy Light

does not switch "ON".

SYMPTOM 9 :-

SYMPTOM 10 :-

SOLUTIONS 10 :-

Operator works from the "Transmitter"

but not from the "Wall Push-button"

SOLUTIONS 9 :-

9.1 Inspect the Wall Push-Button Console

for damage.

9.2 Inspect the Push-Button Wires for

damage and proper connections to the

operator.

10.1 Check the Lamp and replace if

necessary.

10.2 Check the P.C. Control Board and

replace if necessary.

5.1 Check the Travel Limit Switches for

damage.

5.2 Inspect the limit switch wires for

damage.

MAN 01 - page 23

Version 5

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