Replacing Fan Units

Important:

It is not supported to operate a Quantum Maestro Orchestrator See "Maestro Orchestrator"., if two or more fan units failed.
Make sure that the fans have the air flow that matches the model number.

An air flow opposite to the Quantum Maestro Orchestrator design causes the Quantum Maestro Orchestrator to operate at a higher (less than optimal) temperature.

See:
- Airflow in MHO-175
- Airflow in MHO-170 and MHO-140
See Fan Status LED.

Removing a Fan Unit

Step	Instructions
1	Grasp and hold the fan unit's handle with your hand.
2	Push the latch release with your thumb.
3	Pull out the fan unit from the Quantum Maestro Orchestrator. As you pull out the fan unit, its status LEDs turns off (see Fan Status LED).

Step

Instructions

Grasp and hold the fan unit's handle with your hand.

Push the latch release with your thumb.

Pull out the fan unit from the Quantum Maestro Orchestrator.

As you pull out the fan unit, its status LEDs turns off (see Fan Status LED).

Installing a Fan Unit

Step	Instructions
1	Make sure the mating connector of the new fan unit is free of any dirt and obstacles.
2	Insert the fan unit end into the opening.
3	Slide in the fan unit until you feel a slight resistance.
4	Continue to press the fan unit until it seats completely. The fan unit latch snaps into place. This confirms the proper installation.
5	These should light up in green color: The indicator on the fan unit The Fan Status LED (see Fan Status LED) If either the indicator, or the LED does not light up in green color, repeat the whole procedure to remove the fan unit and insert it again. After two unsuccessful attempts to install the fan unit, power off the Quantum Maestro Orchestrator before you attempt any hardware troubleshooting.