Manaras Opera-H Installation Instructions Manual page 33

Table 12 - Troubleshooting Guide – Part 2
Symptom
"Stop" button
doesn't stop the
door
Door reverses to
fully open position
after the door closes
and reaches the
floor
Door doesn't open
or close, motor
hums or blows the
main breaker.
Motor hums when
"Open" or "Close"
buttons are pressed.
Motor fails to shut
off at fully closed or
fully opened
positions
Motor turns but door
does not move
Limit switches do
not hold their
settings
Door doesn't
respond to any radio
command
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Probable Cause
 Two 3-push button stations (or more)
are connected in parallel.
 Defective "Advanced
switch.
 A "Open" command is being given.
 Mechanical door lock is engaged.
 Door is jammed.
 Brake doesn't release, if applicable.
 Loose wire on solenoid brake, if
applicable.
 Defective solenoid brake, if applicable
 Loose motor wires.
 Defective capacitor.
 Defective limit switch.
 Limit cams are not adjusted.
 Limit drive chain is broken.
 Loose sprocket on limit shaft.
 Limit shaft does not rotate.
 Sprocket key is missing.
 Drive chain is broken.
 Clutch is slipping.
 Loose drive or limit chain.
 Limit cam retaining bracket is not
engaging in the slots of the limit cams.
 Limit cams are binding on shaft
threads.
 Limit shaft has a slight "play".
 No power supply. (Transmitter light is
OFF)
 Radio antenna is not properly
positioned.
 Ambient radio, environmental or
building structure interference.
33
➔ Verify and correct wiring (Stop buttons in
series, only Open & Close in parallel).
Close" limit ➔ Verify and replace the limit switch.
➔ Verify "Open" push-button or any closing
device for short-circuit.
➔ Release the door lock.
➔ Verify manual operation of door.
➔ Verify and adjust brake tension.
➔ Verify and correct wiring.
➔ Replace.
➔ Verify and correct wiring.
➔ Replace.
➔ Operate limit switch manually while door is
moving. If door does not stop, replace the
switch.
➔ Verify and adjust.
➔ Replace.
➔ Tighten set screw.
➔ Verify and replace accordingly.
➔ Replace.
➔ Replace.
➔ Adjust clutch to proper tension.
➔ Adjust chain to proper tension.
➔ Be sure it is engaged in slots of both
cams.
➔ Lubricate shaft threads. Limit cams should
turn freely.
➔ Verify and adjust.
➔ Replace transmitter's battery.
➔ Make sure antenna cable is not bent.
Cable should be passed through control box.
➔ Check connection of plug-in antenna. If
required add an external antenna (socket on
receiver available).
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Suggested Action
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