Chamberlain K001D8395 User manual

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TO REDUCE THE RISK OF SEVERE INJURY OR DEATH:
IMPORTANT INSTALLATION INSTRUCTIONS
1. READ AND FOLLOW ALL INSTALLATION WARNINGS AND
INSTRUCTIONS.
2. Install door operator ONLY on a properly balanced and
lubricated door. An improperly balanced door may NOT
reverse when required and could result in SEVERE INJURY
or DEATH.
3. ALL repairs to cables, spring assemblies and other hardware
MUST be made by a trained door systems technician BEFORE
installing an operator.
4. Disable ALL locks and remove ALL ropes connected to a
door BEFORE installing an operator to avoid entanglement.
5. Install an operator, a minimum of 8 feet (2.44 m) from the
floor.
6. NEVER connect a door operator to a power source until
instructed to do so.
7. NEVER wear watches, rings or loose clothing while installing
or servicing an operator. They could be caught in the door or
operator mechanisms.
8. Install a control station:
• within sight of the door
• out of reach of small children and at a minimum height of
5 feet (1.5 m) above floors, landings, steps, or any other
adjacent walking surface.
• away from ALL moving parts of the door
9. Install the control station far enough from the door to
prevent the user from coming in contact with the door while
operating the controls.
10. Install the entrapment warning placard on the wall next to
the control station in a prominent location, visible from the
door.
11. Place the manual release/safety reverse test label in plain
view on the inside of door.
12. Upon completion of installation, test the entrapment
protection device(s).
13. SAVE THESE INSTRUCTIONS.
When you see these Safety Symbols and Signal Words on the
following pages, they will alert you to the possibility of serious
injury or death if you do not comply with the warnings that
accompany them. The hazard may come from something
mechanical or from electric shock. Read the warnings carefully.
When you see this Signal Word on the following pages, it will
alert you to the possibility of damage to your door and/or the
door operator if you do not comply with the cautionary
statements that accompany it. Read them carefully.
Mechanical
Electrical
IMPORTANT NOTES:
• BEFORE attempting to install, operate or maintain the
commercial door operator, you must read and fully understand
this manual and follow all safety instructions.
• DO NOT attempt repair or service of a commercial door
operator unless you are an Authorized Service Technician.
• A commercial door operator should only be installed on a
properly balanced door only. Ensure door is properly balanced
prior to installation.
SAFETY INFORMATION
ENTRAPMENT PROTECTION DEVICES:
LiftMaster Monitored Entrapment Protection (LMEP)
Monitored photoelectric sensors and/or door edge sensors are
required for any momentary contact to close modes of operation.
Refer to operator manual for additional information. Refer to the
‘Commercial Door Entrapment Protection Systems’, and
accessories page 64, for available options.

General Information
This guide is intended to help with Commercial Door Operator maintenance and troubleshooting. The guide offers several
different troubleshooting scenarios and provides answers to frequently asked questions. The comprehensive, yet user-friendly
guide will hopefully be used as a tool to solve all of the Commercial Door Operator maintenance problems you may encounter.
SECTION A
Basic Troubleshooting 4-6
SECTION B
Logic Operators
Industrial Duty Logic Operators 8-26
Medium Duty Logic Operators 27-31
SECTION C
Mechanical Operators 34-36
SECTION D
Basic Electrical Information 38-45
SECTION E
General Information 46-52
SECTION F
Wiring Diagrams 54-62
Commercial Door Entrapment Protection Systems 64

4
Page
Basic Troubleshooting 5
SECTION A
Table of Contents

5
Basic Troubleshooting
Always Follow Local Electrical Codes
WARNING! If you are not trained in electrical safety, contact a professional electrical safety trainer. It is in your best
interest to have electrical safety training. Do not attempt to work on a powered (turned on) operator if you have
not received electrical safety training. Remember, it is dangerous to deal with high-voltage electricity. Many people
incurred serious injuries, including fatalities, as a result of electrical accidents. You must be very careful when
checking line voltages.
The high-voltage wiring to the operator, low-voltage wiring to the control station(s), and safety devices may require a
licensed electrician for installation.
Make Sure The Door Is Working Properly
Close the door and disconnect the door from the operator. Manually operate the door. The lifting force needed by most
doors should be manageable by one person and the door should move smoothly. Check all hardware for wear, binding
and tightness. Replace any marginal parts. The door should be in good working order. An unbalanced or jerking door
will put excess wear on the operator and cause premature failure. When checking a door with a hoist operator, be sure
the door is disconnected from the operator and lifted by hand and not by the hoist/hand chain. It is very difficult to
determine if the door is balanced when using the operator chain hoist. Repair any door problems before reattaching
the operator.
Remove All Accessories And Control Devices
In many cases an operator may be malfunctioning due to accessories or control devices attached to the operator’s
control circuit. The first step in troubleshooting is to use a process of elimination. Disconnect all wired accessories
and control devices. Many times in complicated installations, there will be extra devices installed by an electrician
or other subcontractor that may not be functioning properly with the operator. If the door functions properly after
disconnecting additional devices, start reconnecting each device one at a time. Determine if any of the control
device(s) are causing the problem. Advise the customer of your findings and their options for repairs/replacements.
NOTE: When monitored entrapment protection devices are removed from operators that require a monitored
entrapment protection device such as photo eyes; they will no longer function unless they are under constant
pressure.
A

6
Basic Troubleshooting
Check Incoming Voltage
Check the incoming power voltage to ensure readings are within 10% of the rated voltage. For example, a 115VAC-
rated power line should read between 103.5 to 126.5VAC. Continue to monitor voltage as the operator is activated
through one cycle. Voltage drops occur, but should not drop more than 5% under load from the non-functioning
position, +/- 10% at startup and +/- 5% while the operator is running. Low voltages can cause damage to components
and cause functionality issues.
NOTE: The installation of a dedicated circuit is required for achieving optimal voltage.
Check The Overload
Look at the overload button (when present) on the outside or inside of the electrical box. To confirm if the overload has
been tripped, press the overload button. If the overload has been tripped, look for a short or bad wire in the operator.
Resetting the overload will only fix the problem temporarily. LiftMaster recommends the cause of the overload be
identified and resolved. Logic operators are equipped with a thermal overload and will automatically reset themselves.
After the operator cools it must be run a full cycle.
Check Any Interlock Switches
Check any interlock and/or disconnect switches for full activation. Manually activate any interlock switches to verify
proper motion of the switch and use a multimeter across the switch leads to verify proper electrical output. The output
should show a closed circuit (low resistance) when the door is ready to be activated.
All of the above testing is generic for Logic 3.0, Logic 4.0, Logic 5.0, Medium Duty Logic and Mechanical operators.
Mechanical operators are also known as Contactor or Electro-Mechanical operators. Efficiency in troubleshooting
operators differs from this point. Logic operators have many LEDs and special controls to speed up diagnosis. For a
Mechanical operator, refer to Section C. For Logic 3.0, 4.0, 5.0 operators, continue on to Section B.
A

Industrial Duty Logic Operators
Page
Logic Board Overview 9
Troubleshooting 13
Selected Features 21
Diagnostic Chart 22
Symptoms And Solutions 23
Error Codes 25
Remote Controls 27
Logic Operators
SECTION B
Table of Contents
Medium Duty Logic Operators
Page
Troubleshooting 28
Symptoms And Solutions 29
Error Codes 30
Programming 31

9
Open Button
Close Button
Stop Button
Optional Auxiliary
Card Receptacles
Motor
Direction
Jumper
Maximum Run
Timer Button
Radio
Learn Button
Mid Stop
Learn Button
Timer-To-Close
Learn Button
Selector Dial
(used for
programming
and selecting
wiring type)
Main Motor Control Harness Connection
Control Wiring
Terminal Block
Maintenance
Alert System
Button for
Programming
Single Phase
& Three Phase
Jumper
Current Sense
Receiver LED
LOGIC 5.0 - SERVICE KIT# K001D8395
B
Industrial Duty Logic Operators
Logic Board Overview

10
B
Industrial Duty Logic Operators
Logic Board Overview
Logic 5.0 Power Board - Dual Voltage Connections
• Reduces stocking a wide variety of operators due to range of potentially required voltages.
• Minimizes lost time if operator does not meet predetermined job site voltage requirements.
3 Phase Power Board 575V
Service Kit#...................................... K001D8397-1
1 Phase Power board - 115/230V, N4/N4X
Service Kit#.............................................................................................................................................................................K001D8398
3 Phase Power board - 230/460/575V, N4/N4X
Service Kit#.........................................................................................................................................................................K001D8116-1
N4 & N4X Electrical Box Board Requirements
The N4 & N4X Electrical Boxes require specific power boards.
When installing power boards for the N4 or N4X Electrical boxes, choose one of the compatible power boards outlined
below that fit your specific voltage requirements.
1 Phase Power Board 115/230V
Service Kit#...................................... K001D8396-1
3 Phase 208/230/460V
Service Kit#..........................................K001D8397

11
5
Open Button
Close Button
Stop Button
Optional Auxiliary
Card Receptacles
Motor
Direction
Jumper
Maximum Run
Timer Button
Radio
Learn Button
Mid Stop
Learn Button
Timer-To-Close
Learn Button
Selector Dial
(used for
programming
and selecting
wiring type)
Main Motor Control Harness Connection
Control Wiring
Terminal Block
Maintenance
Alert System
Button for
Programming
Single Phase
& Three Phase
Jumper
Receiver LED
B
Logic Board Overview
Industrial Duty Logic Operators
LOGIC 4.0 K001A6837
5
Open Button
Close Button
Stop Button
Optional Auxiliary
Card Receptacles
Motor
Direction
Jumper
Maximum Run
Timer Button
Radio
Learn Button
Mid Stop
Learn Button
Timer-To-Close
Learn Button
Selector Dial
(used for
programming
and selecting
wiring type)
Main Motor Control Harness Connection
Control Wiring
Terminal Block
Maintenance
Alert System
Button for
Programming
Single Phase
& Three Phase
Jumper
Receiver LED

12
Optional Auxiliary
Card Receptacles
Single Phase and
Three Phase
Jumper
Motor
Direction
Jumper
Open Limit
Switch LED
Mid-Stop LED
Safety Limit
Switch LED
Close Limit
Switch LED
Receiver LED
Radio Learn
Button
Maximum
Run Timer
Learn Button
Mid-Stop
Learn Button
Timer to
Close Learn
Button
Relay LEDs
Selector Dial
Power LED
Timer Defeat
LED
MAS
Learn Button
and LED
Entrapment
Protection LED
Edge LED
Open Button
LED
Close Button
LED
Stop Button
LED
Failsafe/Non-Failsafe
Selector Switch Timer
Enable LED
On-Board
3-Button
Control Station
Single Button
Control LED
Control Wiring
Terminal Block
B
Logic Board Overview
Industrial Duty Logic Operators
LOGIC 3.0 K001A5729

13
Look For Green “POWER” LED
The Industrial Duty Logic Operator has many features reducing time required to identify and make repairs, as well
as time spent training service technicians. Please note when working on an operator, always follow proper electrical
safety guidelines and local codes.
The transformer should produce 24VAC (±10 %) on the secondary side. If the green power LED, which is located near
terminal 13, is illuminated then 24VAC is present on the logic board. Verifying with a multimeter is still recommended.
To check the secondary side of the transformer, set the meter to volts AC and check across the yellow and blue wires
on the transformer or terminals 13 and 14 on the logic board. If working properly, they should each show 24VAC +/-
10%.
The logic board and all the controls are run on 5VDC. The 5VDC control signal allows 1000 ft. control runs with
18AWG wire. Be sure any incoming signal to the board is from a dry contact and not a voltage source. A dry contact,
such as a standard switch, is a device connecting two wire leads to make a closed circuit. Some examples are the open
or close buttons on LiftMaster’s standard 3-button control station, limit switches and standard relay outputs.
If the green “POWER” LED does not turn on, the transformer may not be working correctly. Verify primary voltage
feeding the transformer by checking: Logic 3.0 and Logic 4.0 - White and Brown wires. Logic 5.0 - Common and
appropriate wire. See the chart for high voltage wires.
Transformer - High Voltage Color Code
Check Control Station
Verify the control stations are wired to the terminal strip correctly. This is easily checked by using the “OPEN,”
“CLOSE”, and “STOP” LED diagnostic LEDs. The operator should have the “OPEN” and “CLOSE” LEDs off and the
green “STOP” LED on.
Turn the selector dial to DIAG to put the operator in diagnostic mode. Confirm the wiring is correct on the
board by pressing the “OPEN” and “CLOSE” button on the board separately. When each button is pressed, the
corresponding LED should turn on. When working properly, the STOP LED should be illuminated. Pressing the STOP
button should make this LED turn off. If the LED’s respond accordingly to the on-board OPEN/CLOSE/STOP buttons,
test the 3-button control station or the wiring to the 3-button control station.
To test the 3-button control station, open the control station and use a multimeter to verify continuity. When working
properly, an idle 3-button control station with no depressed buttons should read infinite resistance (open circuit)
across the “OPEN” and “CLOSE” buttons and 0 Ohms (closed circuit) across the “STOP” button. The meter should
read 0 Ohms (closed circuit) when the “OPEN” and “CLOSE” buttons are pressed, and infinite resistance (open circuit)
when the “STOP” button is pressed. If the continuity test on the 3-button control station yields different results than
listed, the control station will have to be replaced.
NOTE: Don’t run control wiring and power wiring in the same conduit, these wirings should be separated by 18”.
B
Troubleshooting
Industrial Duty Logic Operators
LOGIC 3.0 AND LOGIC 4.0 LOGIC 5.0
115V Brown and White White and Gray
208/230V Single Phase Brown and White White and Purple
208/230V Three Phase Brown and White White and Gray
460V Brown and White White and Purple
575V Brown and White White and Gray

14
Check Control Station (Continued)
Terminals 2 and 3 are also a normally closed circuit used when an external interlock is present. If the external interlock
is activated the “STOP” LED will not be lit.
If the LEDs do not respond, disconnect the wall control station(s), put a jumper between the “STOP” and “COMMON”
terminals, and try activating the LEDs by pressing the on-board 3-button control station next to the terminal strip. If
the LEDs do not respond, there is a problem with the logic board and will require replacement.
If the lights do respond, but the operator still does not run, reset the operator to factory defaults.
Resetting Factory Defaults - Clearing Memory
To reset most of the user installed settings back to factory defaults:
1) Turn the selector dial to DIAGNOSTIC.
2) Press and hold the STOP button for 5 seconds. The MAS LED will flash
momentarily when the factory defaults have been restored.
3) Return the selector dial to the desired wiring type.
Factory Defaults:
a) Timer-To-Close is set to 0 seconds.
b) The Mid Stop is deactivated.
c) The Maintenance Alert System is deactivated.
d) The Maximum Run Timer is set to 90 seconds.
e) Car Dealer Mode is deactivated.
f ) The remote controls and myQ®devices will still be learned.
g) Remote control programming via the 3-button control station.
h) The LiftMaster Monitored Entrapment Protection (LMEP) device(s) will
be unprogrammed.
NOTE: Life of Operator feature (Odometer/Cycle Counter) and programmed
remote controls and myQ devices are not cleared.
B
Troubleshooting
Industrial Duty Logic Operators
Operation will
vary depending
on wiring type
SELECTOR DIAL

15
B
Troubleshooting
Industrial Duty Logic Operators
Testing C Relay
Check Coil Wires. 0VDC at idle, 24VDC when given a command either direction. Check NO Contact. Metering L1 to
either white wire on C relay should read line voltage when given a command.
Testing B Relay
Check Coil Wires. 0VDC at idle, 24VDC when given an OPEN command. *Special applications might show voltage in
the opposite direction.
Check NO Contact. Metering L2 to 6 on B relay should read line voltage when given an OPEN command. *Special
applications might show voltage in the opposite direction.
Testing A Relay
Check Coil Wires. 0VDC at idle, 24VDC when given a CLOSE command. *Special applications might show voltage in
the opposite direction.
Check NO Contact. Metering L2 to 2 on A relay should read line voltage when given a CLOSE command. *Special
applications might show voltage in the opposite direction.
Testing K3 Relay (Start Winding Relay On Board With White And Yellow Wires)
K3 is a NO relay that closes for 1.25 seconds during start up. To test, remove White and Yellow wires and test for
continuity across the contacts on the relay. Reading should be OPEN when operator is idle and should close for 1.25
seconds when operator is given a command.
NOTE: 1) This test will put the operator into a restricted close mode. Simply cycle power to reset.
2) If the K3 relay is stuck CLOSED, the motor will 'GROWL' loudly and trip the circuit breaker.
3) If the K3 relay is stuck OPEN, motor will only hum.
Advanced Troubleshooting: Testing Single Phase Logic 3.0 And 4.0 Relays
The following tests should be performed by a qualified technician. A multimeter is required.
SLOT 1
RADIO
SLS
CLS
OLS
MID
REV
STD
SLOT 2
MOTOR
DIRECTION
MOV
MOV
(YE)
(OR)
(GY)
(OR) (PU)
(WH)
(WH)
(WH)
(WH)
(WH)
(PU)
(YE)
(WH)
(WH)
(WH)
(WH)
(YE)
hot
neutral
ground
(BK)
COM 120
VAC
120 / 240
VAC
+24 VAC -24 VAC
See Motor
Connections
8
01
4
6
2
6
2
8
4
01
COIL
COM
NO
C
BA
(WH)
(BL) (GY)
(YE)
(BR)
(GY)
See Motor
Connections
L3 L2 L1

16
B
Troubleshooting
Industrial Duty Logic Operators
Testing C And D Relays
Check Coil Wires. Both are 0VDC at idle. Metering across either coil should read 12VDC when given a command.
Check NO Contact. Metering L1 to either white wire on C or D relay should read line voltage when given a command.
Testing B Relay
Check Coil Wires. 0VDC at idle, 24VDC when given an OPEN command. *Special applications might show voltage in
the opposite direction.
Check NO Contact. Metering L2 to 6 on B relay should read line voltage when given an OPEN command. *Special
applications might show voltage in the opposite direction.
Testing A Relay
Check Coil Wires. 0VDC at idle, 24VDC when given a CLOSE command. *Special applications might show voltage in
the opposite direction.
Check NO Contact. Metering L2 to 2 on A relay should read line voltage when given a CLOSE command. *Special
applications might show voltage in the opposite direction.
Advanced Troubleshooting: Testing Three Phase Logic 3.0 And 4.0 Relays
The following tests should be performed by a qualified technician. A multimeter will be required.
SLOT 1
RADIO
SLS
MRT
R R
1
E2
D1
C2
B2
CLS
OLS
MID
REV
STD
SLOT 2
MOTOR
DIRECTION
MOV
MOV
(GY)
(YE)
(RD)
(WH)
(PU)
(YE)
(OR)
(GY)
(OR)
(PU)
(WH)
(WH)
(WH)
(WH)
(WH)
(WH)
(GY) (YE)
(WH)
(GY)
(WH)
(WH)
(WH)
(WH) (WH)
(PU)
(BR)
(BR)
(YE)
208/230/460 VOLT 3PH. POWER IN
(BK)
COM 120
VAC 240 / 460 /
575 VAC
+24 VAC -24 VAC
COIL COIL
COM COM
NO NO
See Motor
Connections
See Motor
Connections
8
01
4
62
62
84
01 A
B
C
D
L3 L2 L1

17
B
Troubleshooting
Industrial Duty Logic Operators
Advanced Troubleshooting: Checking Logic 5.0 Single Phase Motor
The following tests should be performed by a qualified technician. A multimeter will be required.
1) Turn power off to the operator.
2) Locate the motor plug on the POWER BOARD and unplug.
3) Set the multimeter to continuity/ohms. Ω *Certain meters have a setting that beeps when a closed circuit is
detected. This setting is preferred for the test.
4) Using the guide below, check for continuity across the following pins on the motor harness:
a. Place probe between Thermal Protector, Pins 4 and 10. Continuity should be present.
b. Place probe between Run Winding 1, Pins 12 and 8. Continuity should be present.
c. Place probe between Run Winding 2, Pins 11 and 9. Continuity should be present.
d. Place probe between Start Winding, Pins 1 and 7. Continuity should NOT be present.
5) If the readings are different than the results expected above, the motor will have to be replaced.
123
456
789
10 11 12

18
B
Troubleshooting
Industrial Duty Logic Operators
Advanced Troubleshooting: Checking Logic 5.0 Three Phase Motor
The following tests should be performed by a qualified technician. A multimeter will be required.
1) Turn power off to the operator.
2) Locate the motor plug on the POWER BOARD and unplug.
3) Set the multimeter to continuity/ohms. Ω *Certain meters have a setting that beeps when a closed circuit is
detected. This setting is preferred for the test.
4) Using the guide below, check for continuity across the following pins on the motor harness:
a. Place probe between Thermal Protector, Pins 1 and 4. Continuity should be present.
b. Place probe between Motor Winding 1, Pins 14 and 8. Continuity should be present.
c. Place probe between Motor Winding 2, Pins 15 and 7. Continuity should be present.
d. Place probe between Motor Winding 3, Pins 9 and 5. Continuity should be present.
e. Place probe between Motor Winding 4, Pins 6, 11 and 12. Continuity should be present. *Any combination
between Pins 6, 11 and 12, continuity should be present.
5) If the readings are different than the results expected above, the motor will have to be replaced.
123
456
789
10 11 12
13 14 15

19
B
Troubleshooting
Industrial Duty Logic Operators
Advanced Troubleshooting: Checking Logic 5.0 Single Phase Brake And Power Board
The following tests should be performed by a qualified technician. A multimeter is required.
To Check Brake (When Present)
1) Turn power off to the operator.
2) Locate the brake plug on the POWER BOARD and unplug.
3) Set the multimeter to continuity/ohms. Ω *Certain meters have a setting that beeps when a closed circuit is
detected. This setting is preferred for the test.
4) Using the guide below, check for continuity across the following pins on the brake harness:
a. On 115v operators, place probe between the White and Yellow wires on the brake
harness. Continuity should be present.
b. On 208/230v operators, place probe between the Blue and Black on the brake
harness. Continuity should be present.
5) If the readings are different than the results expected above, the brake solenoid will have to be replaced.
To Check Power Board
This measurement is done with power removed from the operator and the low voltage harness plugged in to the
Power Board. Set meter to ohms(Ω) and check :
Orange to Gray should read 335 ohms
Orange to Purple should read 648 ohms
Orange to Black should read 335 ohms
Orange to Yellow should read 648 ohms
*Readings are to allow +/- 10% deviation If the readings are different than the results expected above, the Power
Board will have to be replaced.
To Check Brake
(when present)
To Check Power Board

20
B
Troubleshooting
Industrial Duty Logic Operators
Advanced Troubleshooting: Checking Logic 5.0 Three Phase Brake And Power Board
The following tests should be performed by a qualified technician. A multimeter will be required.
To Check Brake (When Present)
1) Turn power off to the operator.
2) Locate the brake plug on the POWER BOARD and unplug.
3) Set the multimeter to continuity/ohms. Ω *Certain meters have a setting that beeps when a closed circuit is
detected. This setting is preferred for the test.
4) Using the guide below, check for continuity across the following pins on the brake harness:
a. Place probe between Pins 1 and 4 on the brake harness. Continuity should be present.
5) If the readings are different than the results expected above, the brake solenoid will have to be replaced.
To Check Power Board
This measurement is done with power removed from the operator and the low voltage harness plugged in to the
Power Board. Set meter to ohms(Ω) and check :
Orange to Gray should read 350 ohms
Orange to Purple should read 640 ohms
Orange to Black should read 350 ohms
Orange to Yellow should read 350 ohms
*Readings are to allow +/- 10% deviation If the readings are different than the results expected above, the Power
Board will have to be replaced.
To Check Brake
(when present)
To Check Power Board
NOTE: Fusing on the 3-Phase Power Board is not field-replaceable. An Open Fuse indicates that the 3-Phase Power Board
is damaged and must be replaced. Failure to replace the complete 3-Phase Power Board may result in additional damage
to the Operator.