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39
AC1234-6 Rev. C
Troubleshooting Messages
Display Cause Solution
AIRFLOWERROR
Fanisnotworking.Airowis
blocked.
Exit current test. Contact Robinair
authorized service center.
ANALYZERERROR1
UNSTABLEOUTPUT
1.Insufcientrefrigerantowto
identier.
2.Possibleelectromagnetic
orRF(radiofrequency)
interference.
1. Check source tank for
pressure and secure valve
connections.
2. Move unit away from EMF or
RFI sources.
ANALYZERERROR2
HIGHOUTPUT
PossibleelectromagneticorRF
(radiofrequency)interference.
Move unit away from EMF or
RFI sources.
ANALYZERERROR3
AIRCALIBRATIONLOW
Possiblerefrigerantinexternal
calibrationair.
Check air ventilation and air
ow.
ANALYZERERROR4
IDENTIFIEROUTOF
TEMPERATURERANGE
Identiertemperatureoutside
operatingrange.
Check unit ventilation and
ambient conditions.
ANALYZERERROR5
REPLACEIDENTIFIER
FILTERANDSAMPLEHOSE
ASSEMBLY
1.Insufcientrefrigerantowto
identier.
2.Samplehoseorlterinside
refrigerantidentieris
pluggedorcontaminated
withoil.
1. Check source tank for
pressure and secure valve
connections.
2.
Follow maintenance
procedure to change identier
lter and sample hose.
CHARGEINPROGRESS
AIRPURGE
Non-condensablegasis
presentinISVthatcould
contaminateA/Csystem.
Before it charges, the machine
purges air out of the ISV.
EMPTYSOURCETANK
1.Machinesenseslow
pressure.
2.Filterintankllhoseis
plugged.
1. Check source tank for
pressure and secure valve
connections.
2. Refer to Tank Fill Hose
Service in Maintenance
section.
INSUFFICIENTPRESSURE
Ifpressureislessthan0.7bar,
refrigerantcannotbeidentied.
Refer to Vacuum section; follow
instructions to evacuate system.
ISVCONDITION
Machineiscirculating
refrigeranttobuildISVpressure
forachargecycle.
Charge process is automatically
interrupted and machine
operates in a mode to build
tank pressure. Once tank
pressure is sufcient, machine
automatically completes charge.