Daikin SA R32 Sky-Air RZAG-L Service Manual

Also see for FCAHG100FVEB: Installation and operation manual Technical data Installer and user reference guide

Contents

Daikin SA R32 Sky-Air RZAG-L Service Manual Manual pdf 32 page image

ESIE16-03B | Part 2. Troubleshooting 2.2. Error based troubleshootingPage 32 22/08/16 | Version 1.1SA R32 Sky-Air RZAG-L2.2.2.8. “H3-00” – High pressure switch abnormalityNon condensables in refrigerant. Check for non condensables in refriger-ant.In case of suspicion of non condensables,recover, vacuum and recharge with virginrefrigerant.Stop valve is closed. Check if stop valve is open. Open stop valve when required.Faulty 4-way valve. Check the 4-way valve (see "4-way valve"on page 47).Replace the 4-way valve coil (see"Replacing 4-way valve coil" on page 75)or body (see "Replacing 4-way valvebody" on page 73) when required.Faulty expansion valve. Check the expansion valve (see "Elec-tronic expansion valve" on page 50).Replace the expansion valve body (see"Replacing expansion valve body" onpage 81) or motor (see "Replacing expan-sion valve motor" on page 82) whenrequired.Faulty 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 discharge thermistor. Check discharge thermistor (see "Refrig-erant thermistors" on page 57).Replace discharge thermistor whenrequired.Faulty heat exchanger thermistor. Check heat exchanger thermistor (see"Refrigerant thermistors" on page 57).Replace heat exchanger thermistor whenrequired.Faulty outdoor temperature thermistor. Check outdoor temperature thermistor(see "Refrigerant thermistors" onpage 57).Replace outdoor temperature thermistorwhen required.Trigger Effect ResetHigh pressure switch is activated whencompressor is off.Unit will stop operating. Manual reset via user interface.Possible cause Check Corrective actionStop valve is closed. Check if stop valve is open. Open stop valve when required.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 outdoor inverter PCB. Check outdoor inverter PCB.Check if the alive led is blinking in regularintervals.Check if the correct spare part is installed.Adjust the power to the outdoor inverterPCB.Replace outdoor inverter PCB (see"Replacing main PCB" on page 89).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.Faulty high pressure switch. Check high pressure switch (see"Highpressure switch" on page 53).Replace the high pressure switch (see"Replacing high pressure switches" onpage 86).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.Possible cause Check Corrective action