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9.0
TROUBLESHOOTING GUIDE
PROBLEM
Unit beeps every 10
seconds.
Alarm horn will not sound.
Unit alarms continuously.
Instrument will not
calibrate.
Unit has no lights.
CAUSE
Check flow bar graph and ensure green
LEDs are lit.
RUN/CAL switch is in the CAL position.
Restricted internal plumbing.
Faulty or unplugged horn.
Bad air, Air quality indicator is RED.
Out of calibration.
Faulty sensor.
Faulty sensor
No power to instrument.
Blown fuse.
- 8 -
SOLUTION
Adjust regulator until green LED is lit
middle scale.
Put RUN/CAL switch in the RUN position.
Contact manufacturer for service.
Plug horn in.
Replace horn.
Check intake for contamination.
Re-calibrate (Page 6 of this manual).
Replace sensor (Page 9 of this manual).
Replace sensor (Page 9 of this manual).
Make sure instrument is plugged in.
Replace fuse.
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