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Installation, Operation & Maintenance Guide - 500 Series
East Coast: 203-335-3700
West Coast: 480-629-4784
CAG-04-19-001-USA
www.AtmosAir.com
Troubleshooting
In the event that the system is not functioning, follow these steps IN ORDER:
1. Check the fuse. If it is blown, replace it with the appropriate sized slow-blow 500mA glass 5mm x 20
mm fuse rated at 250 V and continue to the next step.
2. Check that the main power supply is sending the correct power to the unit.
3. If the system is controlled by an air pressure switch, and/or a door switch, check that these are not
preventing power from being sent to the system.
4. If power is reaching the unit and it was necessary to replace the fuse, the next step is to determine
whether there is a fault in the system or a tube. First, to check that the system’s power is functioning,
set the ionization power knob and the power switch both to the ‘off’ position. Make sure all personnel
are clear of the high voltage tubes, then re-connect the power supply. Flip the power switch to ‘on’ and
observe the green light. If the light does not turn on, there is still a problem with delivering power to
the system. If all external sources of failure are eliminated, the system should be serviced by a qualified
AtmosAir technician. Please see contact information at the bottom of this page.
The next step is to determine the cause of the failure, or blown fuse. Typically, failures are caused by
arcing between the inner and outer electrodes, or between one electrode and ground. This often
occurs because of damaged tubes or dirty and/or wet conditions that have allowed carbon tracking to
temporarily connect two electrodes and/or a grounding point electrically.
5. Inspect the mounting plate for tracking evidence.
6. Inspect the tubes for cracks, pitting, or other degeneration of the dielectric material that causes the
dielectric to fail and arcing to occur.
7. If physical inspection has not revealed the cause of failure, one may carefully observe the tubes as the
ionization system is turned on to determine whether arcing is occurring at a particular tube. The fuse
will usually blow, again, but for a short time, one may observe the cause of the power surge in the form
of a visual or audio cue. Usually a failing tube can be determined in a darkened room by looking for a
flash or arc from the failing tube. In some cases, the correctly operating tubes may be in the way of the
failing tube’s visual indication. It is permissible and recommended to remove the top row of tubes
temporarily to assist in the visual diagnosis. The device utilizes a bus-bar technology allowing the
servicing technician to remove any amount of tubes needed to diagnose and/or temporarily run
the device whilst waiting for replacement tubes.
8. It may be necessary to remove all the tubes to ensure that the transformer is working properly in the
absence of tubes. If the fuse still blows, then the system should be serviced by a qualified AtmosAir
technician.
9. It is recommended to also check the voltage levels of the system when a fuse has blown and been
replaced, in order to ensure that the transformer has not been irreparably damaged (See step 4
for more information on this process.) If the voltages are lower than expected, check that all the
connections are secure and rust-free; also check that the input voltage is approximately 120 VAC or
240 VAC.
10. If the fuse continuously blows, or if the voltages are lower than expected, then the system should be
serviced by a qualified AtmosAir technician.
11. Otherwise, replace the damaged tube(s), clean and smooth any mounting plate or end cap carbon
tracking, and return the system to service.
