Electrolux ZCV920H Owner's Manual

5

When in use the power indicator turns green. The 4 progressive performance 
bars will appear. A normally functioning unit should have all 4 performance 
bars lit. If there are consistently less than 2 bars, you should check for the 
problem. Possible issues causing the performance bars to lessen could be:

1. Blocked suction at the hose end

2. Clogged pipe in system

3. Air restrictive tool being used, such as a crevice tool

4. Full dirt receptacle

5. Clogged fi ltration system

Every 25 hours of use (approximately 6 months) the empty dirt receptacle 
indicator will fl ash on the screen. This is an indication to check the dirt 
receptacle and empty it. Since this is time based, you may fi nd the dirt 
receptacle too empty or too full. If you have pets, a workshop or other 
factors that cause waste more frequently, you may wish to check the 
dirt receptacle more frequently.

Once the dirt receptacle is emptied, you push the return button to reset 
the 25 hours timer. If your power supply is interrupted, or otherwise 
unplugged, the empty dirt receptacle indicator will keep a memory of its 
previous status and continue life measure.

To manually reset the Empty Dirt Receptacle indicator, simply press the 
button lining up with the Enter symbol, and hold for 10 seconds.

The life meter has 8 bars on it. Once these bars are depleted your unit will 
continue to run, although it is strongly recommended to take it to your local 
service center to be inspected and serviced. A life bar will deplete every 
65 hours of vacuum use, meaning your central vacuum will have a long life 
of service to you. The life meter can be reset only by your service technician.
If your power supply is interrupted, or otherwise unplugged, the life meter 
will keep a memory of its previous status and continue life measure.

If there is a system fault, or malfunction with your power unit, the service indicator 
will fl ash. Upon seeing this symbol, we recommend that you turn the power 
unit off, unplug the power supply for 10 seconds and then plug it back in. If the 
service symbol is still on the screen, we recommend that you call for service.

This symbol may appear due to the following faults:

• Motor problem

• Electronic problem

•  Voltage or current problem (too high or too low)

•  Power unit not responding to electronics

When not in use, you can scroll through the features of your LCD to 
observe the dirt receptacle status, life monitor measure or most recent 
recorded power level.

To scroll through these features simply push the button corresponding 
with the right pointing arrow symbol. 

The next screen you will see will be the Life Meter. Scroll right further 
and you will fi nd Bucket Status. Yet another scroll will show you last 
recorded performance levels of the power unit, using the Performance 
Meter on the In-Use screen. The fi nal scroll right will show you the customer 
service phone number.

The button lining up with the left scroll button will allow you to scroll 
backwards through the screens. 

Your power unit can all be fi tted with a convenient paper bag for more 
convenient dirt disposal. For maintenance of the paper bag, please see 
the Paper Bag Filter section, under Filter Maintenance.

Refer to page 8 - Image 10

The utility valve is similar to an Inlet valve, but is located near the power 
unit. This valve is present for your convenience, as it can help clean up 
any dirt spilled close to the central vacuum. 

If the circuit board reaches an elevated temperature, the power unit will 
not operate and the LED will be off or on the LCD model the screen 
will be fl ashing. In the event of these problems, press the On/Off button, 
unplug hose or wait for temperature to lower. If problems persist;
contact your authorized dealer or distributor.

Refer to page 8 - Image 9

The central vacuum system employs features that monitor the following operating 
levels: AC voltage, and current draw. If the voltage is below or above standard 
operating voltage, high current draw or locked rotor, the power unit will not 
operate. In this case the On/Off button will blink until the problem ceases or on 
the LCD model the screen will fl ash. If problems persist; contact your authorized 
dealer or distributor. The power unit requires 30 minutes to cool down.

Refer to page 8 - Image 9

Reduced airfl ow or suction indicates the central vacuum system is not 
operating at maximum effi ciency. If the dirt receptacle is full and the fi lter 
is clogged, no air can pass through the unit and no cleaning can take place. 
Instructions provided in the booklet serve as a guide to routine maintenance. 
Proper airfl ow or suction can be maintained by keeping the dirt receptacle 
and fi lter clean and the plastic tubing and hose free from clogs.

Most models feature dirt receptacles with windows to tell at a glance when 
the dirt receptacle should be emptied. In most cases, the dirt receptacle 
only needs to be emptied two to three (2-3) times a year. To remove the dirt