
8. Troubleshooting
Refer to this section if the 212eM/242eM keypad is not operating cor-
rectly as described in this manual.
Problem
Solution
The LEDs are slowly
cycling from right to
left and backlighting is
off.
The 212eM/242eM keypad is designed to
monitor the input voltage and this is an
indication of under-voltage. The under-voltage
threshold is set to 8.5VDC, and when the voltage
drops below this limit, the low voltage warning
starts and backlighting is turned off. To solve,
raise the voltage to between 12-24V.
The LEDs are rapidly
cycling from left to
right and the keypad
has lost all operation.
The 212eM/242eM keypad is designed to
monitor the input voltage, and this is an
indication of over-voltage. The over- voltage
threshold is set to 36VDC, and when the voltage
rises above this limit, the over-voltage warning
starts and the keypad loses all operation. To
solve, lower the voltage to between 12-24V.
The master code does
not work.
Perform the programming mode loopback and
reset the master code using the programming
command.
No LEDs are lit on the
keypad
Power is not reaching the keypad. Using a
voltmeter, confirm that there is voltage at the
keypad on the red and black wires. If there is no
voltage at the keypad, verify that there is voltage
at the power supply. If there is no voltage at the
power supply, call the manufacturer of the power
supply. If there is voltage at the power supply
but not at the keypad, verify there is no break in
the wires, then check continuity in the whole
length of the wire run. To verify that the keypad
is working, you can power the keypad with a
12-Volt Battery.
DEALERS/INSTALLERS ONLY! End users must contact dealer/in-
staller for support. If the 212eM/242eM Keypad still does not work
after troubleshooting, please call IEI’s technical support depart-
ment at 1-800-343-9502 (outside MA) or 1-800-733-9502 (inside MA).
Operating hours are Monday through Friday from 8:00 A.M. to 7:00
P.M. Eastern Standard Time.
IEI 212eM/242eM Standalone Installation/Programming Manual
24
Document # 6174000, Rev. 1.1