Blizzard G4 User Manual
42
Troubleshooting
Projector does not have power:
1.
Check Projector power switch
2.
Check projector is plugged into DEC4 projector outlet
3.
Check that enclosure feed circuit is on
4.
Check DEC4 User Interface leds are on. If feed circuit is on
and UI leds are off, check feed wiring to DEC terminals and
meter DEC4 projector outlet for power
5.
If UI lamp led is on and DEC4 projector outlet is live, there
is a projector fault.
Enclosure overheats:
1.
Is the projector connected to the DEC4 projector
receptacle? If the projector is powered independently the
controller has no way to know when to turn on the
exhaust fans!
2.
Is the filter clogged or obstructed?
3.
Check that the Fan led on the UI is on when the projector
is running. If not, then the projector is probably not
connected to the DEC (see 1).
4.
If the fan led is on, check that the fan is running. If not,
check fan wiring. If wiring is ok, fan may be faulty.
5.
Check the UI display for RH (relative humidity) message. If
display reads RH 5%, RH 100%, or RH###, there is a sensor
fault. Contact Tempest for a replacement sensor.
Dirt/Debris inside enclosure
1.
Filter is either missing or damaged?
2.
Filter is not properly seated
3.
Side panels or back door is not firmly latched
Water in enclosure
1.
Check the drain holes in the bottom of the enclosure. If
they become blocked, and water that gets in cannot
escape.
2.
Check seals around side panels and back door
Fan LED is on but fans do not operate
The exhaust fan is protected by a 20mm 4A slow-blow fuse on
the DEC4 motherboard, and a secondary fuse on the fan board.
In very exceptional cases it is possible that either fuse could
fail. Check visually.
The fuse is protected with a clear resin sealant and soldered to
the circuit board. With care, you can de-solder the fuse and
replace it, but we recommend replacing the DEC4 motherboard
to maintain the integrity of the board’s conformal coating.
Heater LED is on but heater does not operate
The heater is protected by a 20mm 10A slow-blow fuse on the
DEC4 motherboard. In very exceptional cases it is possible that
it could fail. Check visually.
The fuse is protected with a clear resin sealant and soldered to
the circuit board. With care, you can de-solder the fuse and
replace it, but we recommend replacing the DEC4 motherboard
to maintain the integrity of the board’s conformal coating.
None of the above?
Contact
