39
2
Troubleshooting Guide
The electronic control board LEDs help with wiring and troubleshooting diagnostics. Every LED indicates the status of
the door. The electronic control board has a non-volatile memory and the LEDs return to their initial state after a
power interruption.
Easy Fix: Before starting any intervention, verify the LED's monitoring status and refer to Table 5, p.22 for a
proper diagnosis.
Table 14 - Troubleshooting Guide - Part 1
Symptom
Probable Cause
Suggested Action
Door doesn't respond
to any command
Chain hoist is in engaged position, if
applicable. (LED D9 is OFF)
➔
Return the chain to its neutral
position (electrical mode). Refer to
p.10 for further details.
Disconnect chain is in engaged position, if
applicable. (LED D9 is OFF)
➔
Release tension from the
disconnect chain and secure the
chain keeper. Refer to p.10 for further
details.
“Stop” button is stuck. (LED D9 is OFF)
➔
Press and release any “Stop”
button.
Control station not connected or wired
correctly. (LED D9 is OFF)
➔
Verify and correct wiring.
No power supply. (LED D2 is OFF)
➔
Verify the incoming power line
from the main breaker, making sure it
has not tripped or blown a fuse.
Door closes only by
constant pressure
Selector switch set on C2 mode.
➔
Set switch on B2 mode (B2=1).
Photo cells are not properly aligned or are
obstructed. (LED D4 is ON)
➔
Clear the obstruction or re-align.
Faulty monitored photocells or loose wires.
(LED D4 is ON)
➔
Verify, tighten or replace.
Reversing device not connected (Monitored
photo cell as per UL325). (LED D4 is ON)
➔
Connect monitored photo cells as
per UL325 for momentary contact to
close.
Loop is obstructed (Presence of metal).
(LED D10 is ON)
➔
Clear the obstruction.
Operator not operating
as expected
Selector switch is not set on the desired
mode.
➔
Set switch on desired mode, refer
to p.24 for further details.
Timer to Close doesn't
close the door
Timer to Close has been suspended
accidentally for ONE cycle.
➔
Timer to Close will return to
normal after door have been fully
closed. Refer to p.25 for further
details.
Door doesn't respond to
any radio command
No power supply (Transmitter light is OFF)
➔
Replace the transmitter's battery.
Transmitter is not properly programmed.
➔
Reprogram the transmitter.
Photo cells are not properly aligned or are
obstructed. (LED D4 is ON)
➔
Clear the obstruction or re-align.
“Stop” button doesn’t
stop the door
Two 3-push button stations (or more) are
connected in parallel.
➔
Verify and correct wiring.(Stop
buttons in series, only Open & Close
in parallel).
For technical support, please call
1-800-361-2260
for more information
Summary of Contents for MSJ
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