Nortel Meridian 1 Manual page 346

Page 308 of 500
Figure 115
Blower unit removal
553-3001-210 Standard 14.00 June 1999
Performing acceptance tests
5 Heat one of the two thermal sensors under the top cap of the column with
a hand-held hair dryer or similar heat source.
• The column LED should light.
• Thirty seconds after the thermal sensor detects 70 degrees C
(158 degrees F), the main circuit breaker, or the blower unit circuit
breaker, at the rear of the pedestal should trip. The system terminal
should display PWR0004, PWR0006, and PWR0007.
6 Allow the sensor to cool, then reset the circuit breaker in the pedestal. If
a sysload occurs, allow it to complete.
• The column LED should go out.
• The system terminal should display PWR0044, PWR0046, and
PWR0047.
7 Repeat steps 5 and 6 for the other thermal sensor.
553-3040