50
Fault
codes
Symtom/Error
Message
Icon Cause Action
0 or 9 Display shows
empty battery
symbol during
startup.
Battery depleted. Recharge battery.
73 Switched on and
fully charged.
Unit full and on charge
for over 12 hrs.
Remove Gas-Pro from
charge.
N/A Cannot switch off.
Instrument congured
for “No switch off in
alarm”.
Move to clean air then
switch off.
N/A Charger is
plugged in but no
display.
NA Battery has been
deep discharged and
insufcient charge to
power up display.
Keep instrument on
charge and eventually
it will respond to single
button push for quick
view, after which it will
display the charging
symbol.
21 Time and Date
error during
startup.
Battery has been
deep discharged and
the internal clock has
stopped.
Recharge battery. Then
when charged correct
the clock using the PC
software.
N/A Pump not active. NA The ow plate is not
tted and the pump is
activated by the ow
plate.
Fit the ow plate and
select pump if necessary.
N/A Pump fails check
when activated.
NA The pump check tests
the pump suction and
leaks in the gas path.
Check for the correct
tting of the ow plate
and the seal of the
gasket and tubing.
Re-activate the pump
and block the gas path.
66 Gas Test Due. The monitor has not
been gas tested in the
dened period.
The Gas Test is due.