General Monitors 2602A Troubleshooting Manual

M 2602A
ODEL
Fault Code
F1
F2
F3
F4
F5
F6
26776 Simpatica Circle • Lake Forest, CA 92630 • +1-949-581-4464 • Fax +1-949-581-1151
Description
Open Analog Output Signal.
Failed to Complete
Calibration.
Software Checksum Error.
This fault occurs during
initial power-up of the unit.
Sensor Heater Open
Circuited.
Sensor Heater Short
Circuited.
Low Supply Voltage.
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Corrective Action
Check connection on rear terminal pins
20d & 22d.
If this fault occurs, remove the gas and
allow the sensor to see clean air for at
least 5 minutes. Press the Mode/Select
switch to clear the fault. Then attempt
another calibration. If the second
attempt fails, replace the sensor. If this
fault continues to occur after the sensor
has been replaced, consult the factory
or your GMI Representative.
If this fault occurs, remove and reapply
power to the unit. If the fault continues to
occur, replace the unit and consult the
factory or your GMI Representative.
Make sure the black and white sensor
wires are connected properly (in the field
and at the rear of the unit). If this fault
continues to occur, replace the sensor.
Make sure the black and white sensor
wires are connected properly (in the field
and at the rear of the unit). Make sure
the black and white sensor wires do not
come in contact with each other and that
there is no short across them. If this fault
continues to occur, replace the sensor.
Make sure the supply voltage level at
the chassis is 24Vdc.