Chamberlain LiftMaster CSW200101U Installation Manual page 44

DIAGNOSTIC CODES continued...
Some codes are saved in the code history and some are not. If a code is not saved it will briefly appear on the display as it occurs, then disappear.
LiftMaster System
Code Meaning
Main control board has experienced an internal
31
failure.
Max-Run-Time Exceeded Error
35
Product ID Error
36
Product ID Failure
37
Loop Error - Failure or missing exit loop (SHORT
43
or OPEN - LiftMaster Plug-in Loop Detector only)
Loop Error - Failure or missing shadow loop
44 (SHORT or OPEN - LiftMaster Plug-in Loop
Detector only)
Loop Error - Failure or missing interrupt loop
45 (SHORT or OPEN - LiftMaster Plug-in Loop
Detector only)
46 Wireless edge battery low
47 Power board fault
Run-Distance Error
50
Brownout occurred
53
Wireless Second Operator Communication Error
54
55 System AC Overvoltage
56 System AC Undervoltage
Limit Error - Stuck Switch
57
58 Limit Error - Wrong Switch
59 Missing Power Board
Minimum number of monitored entrapment
60
protection devices (one) not installed.
CLOSE EYE/INTERRUPT held more than 3 minutes
61 (main board)
CLOSE EDGE held more than 3 minutes (main
62
board)
OPEN EYE/EDGE held more than 3 minutes (main
63
board)
CLOSE EYE/INTERRUPT held more than 3 minutes
64
(expansion board)
CLOSE EYE/EDGE held more than 3 minutes
65
(expansion board)
TROUBLESHOOTING
Installed System
External Entrapment
Informational
Protection
Solution
Disconnect all power, wait 15 seconds, then reconnect power (reboot).
If issue continues, replace main control board.
Attempt to run and review for duration and obstructions. Max-Run-
Time can be re-measured by saving one or both of the limits again.
Was the control board just replaced? If so, erase limits, enter limit
setup mode and set limits. If not, disconnect all power, wait 15
seconds, then reconnect power before changing product ID harness.
Unplug product ID harness then plug back in. Disconnect all power,
wait 15 seconds, then reconnect power before replacing product ID
harness.
Check loop wiring throughout connection. May be a short in the loop,
or an open connection in the loop.
Check loop wiring throughout connection. May be a short in the loop,
or an open connection in the loop.
Check loop wiring throughout connection. May be a short in the loop,
or an open connection in the loop.
Replace batteries in wireless edge.
Relay fault detected in the power board. Replace the power board.
The limits are less than the minimum requirement or longer than what
was learned. Check limit positions and proper switch function.
Run-distance can be re-learned by setting the handing again.
AC/DC board supply dipped below allowable level. Review power
supply and wiring. If rebooting, ensure enough time for discharge of
power to force a fresh boot.
Check the second operator for power. If OFF, restore power and try to
run the system. If powered, deactivate the wireless feature and then
re-learn the second operator.
Call utility.
Check wiring and wire gauge to operator.
Check switch for proper operation. Check harness for shorts. Replace
if defective.
Check motor wiring.
Check harness for shorts. Check for presence of power board.
Review monitored entrapment protection device connections.
Check CLOSE EYE/INTERRUPT input on main board; check for
alignment or obstruction. The photoelectric sensors may be installed
too far apart.
Check CLOSE EDGE input on main board; check for alignment or
obstruction.
Check OPEN EYE/EDGE input on main board; check for alignment or
obstruction. The photoelectric sensors may be installed too far apart.
Check wired input on expansion board; check for alignment or
obstruction. The photoelectric sensors may be installed too far apart.
Check wired input on expansion board; check for alignment or
obstruction. The photoelectric sensors may be installed too far apart.
42
Inherent Entrapment
Protection
Saved
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES