ESIE16-03B | Part 2. Troubleshooting 2.2. Error based troubleshootingPage 28 22/08/16 | Version 1.1SA R32 Sky-Air RZAG-L2.2.2. Outdoor unit2.2.2.1. “E1-00” – Outdoor unit PCB abnormality2.2.2.2. “E3-00” – Discharge pressure abnormalityTrigger Effect ResetOutdoor main PCB detects that EEPROMis abnormal.Unit will stop operating. Manual reset via user interface.Power reset via outdoor unit.Possible cause Check Corrective actionFaulty outdoor unit main PCB. Check if the HAP LED is blinking in regu-lar intervals (see "Main PCB" on page 55).Check if the correct spare part is installed.Check if the outdoor main PCB receivespower.Restore the power to the outdoor mainPCB.Replace outdoor main PCB when HAPLED is not blinking in regular intervals(see "Replacing main PCB" on page 89).Faulty capacity adapter on outdoor mainPCB installed.Check if the correct capacity adapter isused.Replace capacity adapter when required.External factor (e.g. electrical noise)(cause when error is reset after powerreset, and error happens again after awhile).Check for source which could cause elec-trical interference.Faulty outdoor fan motor. Check the fan motor (see "Fan motor" onpage 52).Check fan motor connections and wiring.Replace fan motor when required (see"Replacing DC fan motor assembly" onpage 79).Adjust wiring when required.Faulty or disturbance of the power supply(imbalance > 10%). Power drop. Short cir-cuit.Check if the power supply is conform withregulations. No fluctuations in frequency.Adjust power supply when required.Power reset via outdoor unit.Trigger Effect ResetHigh pressure switch opens due to meas-ure pressure > 41.7 bar.Unit will stop operating. Manual reset via user interface.High pressure control (measure pressure> 38 bar) occurs 16 times within 300 min-utes.Possible cause Check Corrective actionFaulty high pressure switch. Check high pressure switch (see "Highpressure switch" on page 53).Replace high pressure switch (see"Replacing high pressure switches" onpage 86).Faulty outdoor unit main PCB. Check if the HAP LED is blinking in regu-lar intervals.Check if the correct spare part is installed.Check if the outdoor main PCB receivespower.Adjust the power to the outdoor mainPCB.Replace outdoor main PCB when HAPLED is not blinking in regular intervals(see "Replacing main PCB" on page 89).Faulty capacity adapter on outdoor PCB. Check if the correct adapter is installed.Check if the correct spare part is installed.Adjust capacity adapter when required.Refrigerant overcharge. Check for refrigerant overcharge. Refer tothe nameplate for the correct charge.Charge the correct refrigerant amountwhen required.Humidity in refrigerant (ice formation inexpansion valve).Check for humidity in the refrigerant. In case of suspicion of humidity, recover,vacuum and recharge with virgin refriger-ant.