Sec-5.7
Section 5: Troubleshooting
Code Display Detailed/Expanded Description Corrective Action
8F LIMIT MOD. FAIL The unit has determined that the Limit Module has stopped
communicating.
Check the limit cable connection. Power the unit down
and back up. If the error persist then replace the Limit
Module.
A0 OPEN BTN BAD > PU The unit determined that the Open Pushbutton input was
active (shorted) when power was applied. This input will be
ignored until it changes state.
Check the Open Pushbutton and Open Pushbutton wires
for a closed circuit.
A1 CLOSE BTN BAD
> PU
The unit determined that the Close Pushbutton input was
active (shorted) when power was applied. This input will be
ignored until it changes state.
Check the Closed Pushbutton and Close Pushbutton wires
for a closed circuit.
A2 ONE BTN BAD > PU The unit determined that the 1- Button input was active
(shorted) when power was applied. This input will be ignored
until it changes state.
Check the 1-Button and 1-Button wires for a closed circuit.
A3 RADIO BAD > PWR
UP
The unit determined that the External Radio input was active
when power was applied. This input will be ignored until it
changes state.
Check the External Radio for a short circuit.
A4 AUX OPEN BAD > PU The unit determined that the Auxiliary Open input on the
Timer Close Module was active (shorted) when power was
applied. This input will be ignored until it changes state.
Check the Auxiliary Input device wired into the Timer
Close Module and Auxiliary Input device wires for a closed
circuit.
A5 OPEN KEY BAD > PU The unit determined that the Open Key input on the circuit
board was active (shorted) when power was applied. This input
will be ignored until it changes state.
Power the unit down and back up. If the error persist then
replace the Main Circuit Board.
A6 CLOSE KEY BAD > PU The unit determined that the Close Key input on the circuit
board was active (shorted) when power was applied. This input
will be ignored until it changes state.
Power the unit down and back up. If the error persists
then replace the Main Circuit Board.
A7 MULT KEYS BAD
> PU
The unit determined that more than one input on the circuit
board keypad was active (shorted) when power was applied.
These inputs will be ignored until they change state.
Power the unit down and back up. If the error persists
then replace the Main Circuit Board.
B0 OPENING > XMTR # The unit received a valid input from a "Learned" transmitter
and the door is traveling open. The transmitter ID is displayed.
None
B1 CLOSING > XMTR # The unit received a valid input from a "Learned" transmitter
and the door is traveling close. The transmitter ID is displayed.
None
B2 HALT > XMTR # The unit received a valid input from a "Learned" transmitter
and has stopped the door. The transmitter ID is displayed.
None
B3 "Rev > XMTR#
NO XMTR > CC"
The unit received a valid input from a "Learned" transmitter
and the closing door stopped and reversed and is now
traveling open
None
I2C
Comm
Error
I2C Comm Error The system cannot communicate on the I2C communication
line.
While the operator is powered start unplugging the
expansion devices one at a time (Timer Close Module,
Auxiliary Output Module, On-board Radio, Limit Module),
allow the unit to try to re-initiate, if the operator is able
to re-initiate the LCD will update with the current status.
If this happens then the last device you have unplugged
is defective and needs to be replaced. if all devices have
been unplugged and the operator still displays I2C Comm
Error, replace the main control board.
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