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TROUBLESHOOTING

1. The opener will not operate from either the

ACTIVATION button or the transmitters :

• Does the opener have electric power? Plug a lamp into

the outlet. If it does not work, check the fuse box.

• Have you disabled all door locks? Review installation

instruction warnings on page 1.

• Is there a build-up of ice or snow under the door? The

door may be frozen to the ground. Remove any
restriction.

• The door spring may be broken. Have it

replaced.

2. Opener operates from the transmitter, but not

from the wired wall control (optional accessory):

• Is the wall control lit? If not, reverse the two wires. If

the opener runs, check for a faulty wire connection at
the wall control, a short under the staples, or a broken
wire.

• Are the wiring connections correct? Refer to wired wall

control instructions.

3The door operates from the ACTIVATION button

or wired wall control, but not from the wireless
wall control or transmitter:

• If the wired wall control is installed and it is flashing,

ensure the lock feature is off.

• Program the opener to match the transmitter code.

(Refer to section 15). Repeat with all transmitters.

4. The transmitter has short range:
• Change the location of the transmitter in your car.
• Check to be sure the antenna on the bottom of the

opener extends fully downward.

• Some installations may have shorter range due to a

metal door, foil backed insulation, or metal siding.

5. The door opens and closes by itself:
• Be sure that all transmitter push buttons are off.
• If the wired wall control (optional accessory) is

installed, remove the bell wire from the wired wall
control terminals and operate from the ACTIVATION
button or transmitter . If this solves the problem, the
wired wall control is faulty (replace), or there is an
intermittent short on the wire between the wired wall
control and the opener.

• Clear memory and re-program all wireless wall

controls and transmitters.

6. The door reverses and stops before opening

completely:

• Is something obstructing the door? Is it out of balance,

or are the springs broken? Remove the obstruction or
repair the door.

7. The door reverses for no apparent reason and

opener lights blink for 5 seconds after reversing:

• Check the Protector System

TM

(IR Beams), if

installed. Correct alignment if the red light on the beam

is solid.

8. The door opens but will not close or reverses

while closing:

• Is something obstructing the door? Pull the manual

release handle. Operate the door manually. If it is
unbalanced or binding, call a trained door systems
technician.

• Clear any ice or snow from the floor area where

the door closes.

• Repeat the limit and force setting in section 10 &11.

Repeat safety reverse test after adjustments.

9. The opener strains to operate door:
• The door may be out of balance or the springs may

be broken. Close the door and use the manual
release to disconnect the door. Open and close the
door manually. A properly balanced door will stay in
any point of travel while being supported entirely by
its springs. If it does not, disconnect the opener and
call a trained door systems technician.

10. The opener motor hums briefly, then will not

work:

• Check that the door is not in manual release mode

(refer section 7).

• The door springs may be broken. See above.
• If the problem occurs on the first operation of the

opener, door may be locked. Disable any door locks.

11. The opener will not operate due to power

failure:

• Use the manual release handle to disconnect the

door. The door can be opened and closed manually.
When power is restored, re-engage the opener (refer
section 7).

• If a Standby Power Unit is connected, the opener

should be able to operate up to 20 times without
power.

12. Setting the limits manually:
a. Check that the opener is handed correct (refer

sections 8 and 10).

b. Press and hold the LMT button until the orange

indicator light starts flashing slowly then release.

c. Press the LMT button to move the door UP or the

LRN button to move the door DOWN until the door
reaches the desired UP limit. Ensuring there is
enough clearance for your vehicle.

d. Press the ACTIVATION button. This sets the UP limit

and begins closing the door. Immediately press
either the LRN or the LMT button. The door will stop.
Adjust the desired DOWN limit using the LMT and the
LRN buttons. Check to be sure the door is fully
closed without applying excessive pressure to the
door curtain. Press the ACTIVATION button. This sets
the DOWN limit and begins opening the door. NOTE:
If neither the LMT or the LRN button is pressed, the
door will reverse off the floor and the DOWN travel
limit will be set automatically.

e. Open and close the door with the ACTIVATION

button, transmitter or wall control 2 or 3 times.

• If the door does not stop in the desired UP limit or

reverses before the door stops at the DOWN limit,
proceed to Setting the Force (refer section 11).

• If the door still does not stop at the desired limits is

something obstructing the door? Disengage the
opener. Open and close the door manually. If it is
unbalanced or binding, call a trained door systems
technician.

• If the door stops at both the desired UP and DOWN

limits, proceed to Setting the Force.

15

Summary of Contents for MRC950

Page 1: ...ercial Rolling Door Opener Installation and Operating Instructions Owners Copy Please keep these instructions for future reference This manual contains IMPORTANT SAFETY information DO NOT PROCEED WITH...

Page 2: ...IMPORTANT Chain reduction assemblies that may interfere with the safe and proper operation of the MRC950 must be removed All hand chains must be removed prior to fitting the MRC950...

Page 3: ...for a binding or sticking door Sticking binding or unbalanced doors must be repaired before installing this opener Do not wear rings watches or loose clothing while installing or servicing a door ope...

Page 4: ...3 Ensure that there is at least 45mm from the edge of the curtain to the edge of the bracket If the roller door drum is on the edge of the curtain or is a smaller diameter additional clearance may be...

Page 5: ...ft to the door bracket is tightly secured INSTALLING THE STOP COLLAR 5 3 SAFETY CHECK Is the stop collar installed YES proceed to the next step NO install the stop collar before proceeding Release cab...

Page 6: ...wn firmly opener will make a clicking noise Disable all locks and remove any ropes connected to the door Take care when operating the manual release as an open door may fall rapidly due to weak or bro...

Page 7: ...oor mounting bracket to the wall If the door bracket needs to be relocated due to opener width refer section 3 preferred clamping method Clamp the opener on the door axle and door bracket in the marke...

Page 8: ...ioned approximately halfway or at least 2m from the open position the opener is engaged and the power is turned on Press and hold the LMT Limit button until the orange indicator LED starts flashing an...

Page 9: ...ed out the safety reverse system test outlined above install the warning labels provided with your opener as shown The risk of entrapment label must be installed adjacent to the release handle at a he...

Page 10: ...gether and terminate them into the grey 3 terminal Ensure the trim pot on the opener is set to 0s Turn the opener on Allow 5 minutes for the beams to self learn to the unit do not walk through the bea...

Page 11: ...d be pre programmed by the factory If adding a new wall control program into the opener before mounting the unit as detailed in section 16 professional LRN Press LRN or LED will FLASH TO ADD Transmitt...

Page 12: ...choice on the keypad 2 then press and hold the ENTER button 3 Release the button when the opener courtesy LEDs flash once 3 the code is learned Alternate programming method using the motion detecting...

Page 13: ...all instructions included with the CM475 unit to test for proper operation and testing of the SPU SPECIAL FEATURES OPTIONAL ACCESSORIES 1 Solenoid roller door lock SRDLK01 2 24VDC power output for ex...

Page 14: ...1 001B6451 3S 041A6778 2 041D6637 041B0029 19 SPARE PARTS 041A6811 1 Mount plate sub assembly including motor 041B0029 Sungear kit Aluminium 041B0603 Front upper housing 041A6814 1 Base housing 041D6...

Page 15: ...system 7 Model C379 Wireless finger print access system 8 Model C98 Motion detecting control panel 9 Model 760 Outside keyswitch 10 Model CM1702 Outside quick release 11 Model C77 The Protector Syste...

Page 16: ...or flashing Realign receiving eye sensor clean lens and secure brackets Symptom The RPM Sensor Short travel 150 200mm 6 8 Unplug unit to reset Try to operate opener check diagnostic code If it is sti...

Page 17: ...inding call a trained door systems technician Clear any ice or snow from the floor area where the door closes Repeat the limit and force setting in section 10 11 Repeat safety reverse test after adjus...

Page 18: ...light turns off automatically after 2 1 2 minutes MAINTENANCE OF YOUR OPENER Once a Month Manually operate door If it is unbalanced or binding call for professional door service Check to be sure door...

Page 19: ...d are warranted for the remaining portion of the original warranty period This Chamberlain Limited Warranty provides benefits which are in addition to your other rights and remedies as a consumer Excl...

Page 20: ...114A4200F 2011 The Chamberlain Group Inc TM Trademark of The Chamberlain Group Inc Registered Trademark of The Chamberlain Group Inc...

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