Instruction manual

Problems and Solutions
This section describes various difficulties that might occur, possible causes for
the difficulty, and procedures you can follow to try to solve the problem.
Programming procedure names are shown in
boldface type; for more
information on a specific procedure, refer to the procedure name in Chapter 5.
All Phones Dead: No Dial Tone or Lights
Possible Cause 1: Control unit is not receiving power.
What to do: Make sure the control unit’s power cord is plugged securely into the wall
outlet. Also make sure the main circuit breaker (little plastic pop-up tab shown in Figure
1-1 in Chapter 1) is in the “ON” position (pushed in).
If the green LEDs on the modules are lit and the trouble is gone, the problem is
corrected.
If the green LEDs on the modules are lit but the trouble remains, call the AT&T
Helpline.*
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If the green LEDs on the modules are out, go to Possible Cause 2.
If any green LEDs on the modules are flashing, call the AT&T Helpline.*
Possible Cause 2: The power outlet may be faulty.
What to do: Test the outlet by plugging in an appliance, like a lamp or radio.
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If the appliance does not work, the outlet is faulty. If possible, plug the control unit
into a different outlet. Then check the fuse box or call an electrician.
If the appliance works, call the AT&T Helpline.*
Multiple Phones Dead: No Dial Tone or Lights
Possible Cause 1: The LED on one system module is out.
What to do: If the green LED on the front of a module is out, try reseating the module in the
control unit.
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If the LED lights, the problem is corrected.
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If the problem remains, call the AT&T Helpline.*
Possible Cause 2: The LEDs on several system modules are out.
What to do: If the LEDs on the front of several system modules are out, try reseating the
leftmost module of the ones with the lights out (see “Replacing System Modules” in the
PARTNER
II Communications System Installation guide).
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If the LEDs light, the problem is corrected.
If the problem remains, call the AT&T Helpline.*
*
In the continental U.S., help is available at 1 800 628-2888. Outside the continental U.S., call your local
AT&T Authorized Dealer.
6-2 Troubleshooting