Model IR4000S
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6.0 Troubleshooting
CAUTION:
Component level repair must be undertaken either by General Monitors
personnel, or by competent, authorized service engineers. SMT PCB repair shall only be
performed at a General Monitors facility. Failure to comply with this requirement will
invalidate the warranty.
Be sure to inhibit or disconnect the external alarm wiring before making any check which
might send the unit into alarm.
6.1 No Display on Power Up
If the display is not on after power is applied, make sure that the wiring is correct,
especially the power wires, +24V and COM. Visually verify that insulation is above the
terminal contacts. Gently pull each wire to assure adequate contact and insertion length.
6.2 IR4000S Fault Codes and Remedies
The Model IR4000S has its own separate set of fault codes that appear on the IR4000S
3-digit display. If the letter “b” precedes the two-digit fault code from F0-FF, then this
indicates a base unit fault.
bF5 – Switch Error
The IR4000S CAL/ARGC or RLY RST input is shorted to Common.
ACTION
– Check system wiring.
bF6 – Low Supply Voltage
Indicates the IR4000S voltage input is at or below 18 volts.
ACTION
– Check system wiring. Adjust power supply if necessary.
bF7 – Electronics Error
There is a problem with the electronics of the IR4000S.
ACTION
– Return the unit to the factory for service.
bF8 – Failure to complete setup
The setup menu timed out before a proper exit.
ACTION
– Enter setup and verify that all settings are correct. Select “Fi” to exit setup.
bF9 – Gas check period exceeded
Gas check timed out.
