Robinair R1234yf User Manual download pdf (Page 41)

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.

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