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Troubleshooting

Installer and user reference guide

FXDA10~63A2VEB
VRV system air conditioner
4P599621-1A – 2020.10

22 Troubleshooting

22.1 Solving problems based on error codes

If the unit runs into a problem, the user interface displays an error code. It is
important to understand the problem and to take measures before resetting an
error code. This should be done by a licensed installer or by your local dealer.

This chapter gives you an overview of most possible error codes and their
descriptions as they appear on the user interface.

INFORMATION

See the service manual for:

▪

The complete list of error codes

▪

A more detailed troubleshooting guideline for each error

22.1.1 Error codes: Overview

In case other error codes appear, contact your dealer.

Code

Description

The R32 sensor has detected a refrigerant leak

Safety system error (leak detection)

R32 sensor malfunction

R32 sensor end of lifetime

6 months before the R32 sensor end of lifetime

Malfunction of indoor unit PCB

Drain level control system abnormality

Malfunction of freezing protection

High pressure control in heating, freeze-up protection control in cooling

Malfunction of fan motor

Malfunction of swing flap motor

Malfunction of power supply or AC input overcurrent

Malfunction of electronic expansion valve

Malfunction of a humidifier system

Malfunction of dust collector of air cleaner

Malfunction of capacity setting (Indoor unit PCB)

Failure of transmission (between indoor unit PCB and sub PCB)

Malfunction of liquid pipe thermistor for heat exchanger

Malfunction of gas pipe thermistor for heat exchanger

Malfunction of suction air thermistor

Malfunction of discharge air thermistor

Содержание FXDA10A2VEB

Страница 1: ...Installer and user reference guide VRV system air conditioner FXDA10A2VEB FXDA15A2VEB FXDA20A2VEB FXDA25A2VEB FXDA32A2VEB FXDA40A2VEB FXDA50A2VEB FXDA63A2VEB...

Страница 2: ...2 2 Special heating operation modes 28 8 3 To operate the system 28 9 Energy saving and optimum operation 29 10 Maintenance and service 30 10 1 Precautions for maintenance and service 30 10 2 Cleanin...

Страница 3: ...7 17 1 2 Refrigerant piping insulation 58 17 2 Connecting the refrigerant piping 58 17 2 1 About connecting the refrigerant piping 58 17 2 2 Precautions when connecting the refrigerant piping 59 17 2...

Страница 4: ...is part of a documentation set The complete set consists of General safety precautions Safety instructions that you must read before installing Format Paper in the box of the indoor unit Indoor unit i...

Страница 5: ...aning of warnings and symbols DANGER Indicates a situation that results in death or serious injury DANGER RISK OF ELECTROCUTION Indicates a situation that could result in electrocution DANGER RISK OF...

Страница 6: ...act your dealer DANGER RISK OF BURNING SCALDING Do NOT touch the refrigerant piping water piping or internal parts during and immediately after operation It could be too hot or too cold Give it time t...

Страница 7: ...me and address of fire department police and hospital Name address and day and night telephone numbers for obtaining service In Europe EN378 provides the necessary guidance for this logbook 2 2 2 Inst...

Страница 8: ...tic pump down function with which you can collect all refrigerant from the system into the outdoor unit Possible consequence Self combustion and explosion of the compressor because of air going into t...

Страница 9: ...cedure is done or when pausing close the valve of the refrigerant tank immediately If the valve is NOT closed immediately remaining pressure might charge additional refrigerant Possible consequence In...

Страница 10: ...the earth leakage protector CAUTION When connecting the power supply connect the earth cable first before making the current carrying connections When disconnecting the power supply disconnect the cu...

Страница 11: ...x is connected securely Make sure all covers are closed before starting up the unit NOTICE Only applicable if the power supply is three phase and the compressor has an ON OFF starting method If there...

Страница 12: ...1 WARNING Do NOT install operating ignition sources example open flames an operating gas appliance or an operating electric heater in the duct work CAUTION Make sure the installation of the duct does...

Страница 13: ...ion MUST comply with the applicable legislation WARNING If the power supply has a missing or wrong N phase equipment might break down Establish proper earthing Do NOT earth the unit to a utility pipe...

Страница 14: ...d so as to prevent mechanical damage and in a well ventilated room without continuously operating ignition sources example open flames an operating gas appliance or an operating electric heater and ha...

Страница 15: ...as moving furniture or reconstruction activities CAUTION Do NOT use potential sources of ignition in searching for or detection of refrigerant leaks NOTICE Do NOT re use joints and copper gaskets whi...

Страница 16: ...For the user Installer and user reference guide 16 FXDA10 63A2VEB VRV system air conditioner 4P599621 1A 2020 10 For the user...

Страница 17: ...tal capabilities or lack of experience and knowledge can only use this appliance if they have been given supervision or instruction concerning the use of the appliance by a person responsible for thei...

Страница 18: ...attery contains a heavy metal above a certain concentration Possible chemical symbols are Pb lead 0 004 Waste batteries must be treated at a specialized treatment facility for reuse By ensuring waste...

Страница 19: ...r CAUTION It is unhealthy to expose your body to the air flow for a long time CAUTION To avoid oxygen deficiency ventilate the room sufficiently if equipment with burner is used together with the syst...

Страница 20: ...or outlet When the fan is rotating at high speed it will cause injury WARNING NEVER replace a fuse with a fuse of a wrong ampere ratings or other wires when a fuse blows out Use of wire or copper wire...

Страница 21: ...WARNING The refrigerant inside the unit is mildly flammable but normally does NOT leak If the refrigerant leaks in the room and comes in contact with fire from a burner a heater or a cooker this may r...

Страница 22: ...tem air conditioner 4P599621 1A 2020 10 Troubleshooting see 11 Troubleshooting 435 WARNING Stop operation and shut off the power if anything unusual occurs burning smells etc Leaving the unit running...

Страница 23: ...akage has been repaired or corrected before resuming operation NOTICE Do NOT use the system for other purposes In order to avoid any quality deterioration do NOT use the unit for cooling precision ins...

Страница 24: ...ng capacity sensible Prated c A kW Cooling capacity latent Prated c B kW Heating capacity Prated h C kW Total electric power input Pelec D kW Sound power level per speed setting if applicable LWA E dB...

Страница 25: ...chemical dust cloth etc The panel may get discoloured or the coating peeled off If it is heavily dirty soak a cloth in water diluted neutral detergent squeeze it well and wipe the panel clean Wipe it...

Страница 26: ...used together with the system CAUTION Do NOT operate the system when using a room fumigation type insecticide Chemicals could collect in the unit and endanger the health of people who are hypersensit...

Страница 27: ...omatically after the power turns back on again Setpoint Target temperature for the Cooling Heating and Auto operation modes Setback A function that keeps the room temperature in a specific range when...

Страница 28: ...itch to defrost operation During defrost operation the indoor unit fan will stop operation and the following icon will appear on the home screen The system will resume normal operation after approxima...

Страница 29: ...Prevent direct sunlight from entering a room during cooling operation by using curtains or blinds Make sure the area is well ventilated Do NOT block any ventilation openings Ventilate often Extended u...

Страница 30: ...wever as end user you may clean the air filter and air outlet WARNING NEVER replace a fuse with a fuse of a wrong ampere ratings or other wires when a fuse blows out Use of wire or copper wire may cau...

Страница 31: ...ce can display the Time to clean filter notification Clean the air filter when the notification is displayed If the dirt becomes impossible to clean change the air filter optional equipment How to cle...

Страница 32: ...ce Discoloration and deformation Clean with a soft cloth If it is difficult to remove stains use water or a neutral detergent 10 3 Maintenance before a long stop period E g at the end of the season Le...

Страница 33: ...ing electric heater WARNING Do NOT pierce or burn refrigerant cycle parts Do NOT use cleaning materials or means to accelerate the defrosting process other than those recommended by the manufacturer B...

Страница 34: ...e detection check will occur False detection check 1 Unit starts fan operation on the lowest setting 2 User interface displays error code A0 13 emits alarm sound and status indicator is blinking 3 Sen...

Страница 35: ...tion properly Turn OFF the power supply If the user interface displays Notify your installer and report the error code To display an error code see the reference guide of the user interface If the sys...

Страница 36: ...filter 431 Check if air inlet or outlet of outdoor or indoor unit is not blocked by obstacles Remove any obstacles turn the breaker OFF and back ON If the lamp still blinks contact your dealer An abno...

Страница 37: ...using them to stop Operation automatically restarts when the noise ceases 11 1 5 Symptom Noise of air conditioners Indoor unit A zeen sound is heard immediately after the power supply is turned on The...

Страница 38: ...taller and user reference guide 38 FXDA10 63A2VEB VRV system air conditioner 4P599621 1A 2020 10 12 Relocation Contact your dealer for removing and reinstalling the total unit Moving units requires te...

Страница 39: ...r 4P599621 1A 2020 10 13 Disposal NOTICE Do NOT try to dismantle the system yourself dismantling of the system treatment of the refrigerant oil and other parts MUST comply with applicable legislation...

Страница 40: ...For the installer Installer and user reference guide 40 FXDA10 63A2VEB VRV system air conditioner 4P599621 1A 2020 10 For the installer...

Страница 41: ...ted immediately to the claims agent of the carrier Bring the packed unit as close as possible to its final installation position to prevent damage during transport Prepare the path along which you wan...

Страница 42: ...t a Installation and operation manual b General safety precautions B On the bottom of the packing box c Air filter C In the fan motor space d Washers for hanger bracket e Screws for duct flanges f Met...

Страница 43: ...ining units and options 44 15 4 1 Possible options for the indoor unit 44 15 1 Identification NOTICE When installing or servicing several units at the same time make sure NOT to switch the service pan...

Страница 44: ...leakage detection E g the BRC1H52 remote controllers can generate an alarm of 65 dB sound pressure measured at 1 m distance of the alarm Sound data is available in the technical data sheet of the rem...

Страница 45: ...in case of leak detection sensor fails or when sensor is disconnected For exact model name see option list of the indoor unit For more information about this option refer to the installation manual o...

Страница 46: ...ne WARNING The appliance shall be stored in a room without continuously operating ignition sources example open flames an operating gas appliance or an operating electric heater 16 1 1 Installation si...

Страница 47: ...re the operation noise or the hot cold air discharged from the unit will not disturb anyone Air flow Make sure nothing blocks the air flow Drainage Make sure condensation water can be evacuated proper...

Страница 48: ...FXDA10 63A2VEB VRV system air conditioner 4P599621 1A 2020 10 A 620 mm 16 1 Ceiling opening dimension A Class A mm 10 32 790 40 50 990 63 1190 Service space 620 620 C 300 300 A B A Side view B Top vie...

Страница 49: ...to the installation manual of the used option before installation Minimum floor area requirements CAUTION The total refrigerant charge in the system cannot exceed the requirements for minimum floor ar...

Страница 50: ...g strength Check whether the ceiling is strong enough to support the weight of the unit If there is a risk reinforce the ceiling before installing the unit For existing ceilings use anchors For new ce...

Страница 51: ...ke sure the unit is level at all four corners using a level or a water filled vinyl tube b a a Water level b Vinyl tube NOTICE Do NOT install the unit tilted Possible consequence If the unit is tilted...

Страница 52: ...e field supply to the indoor unit use screws from accessory table below Connect the canvas duct to the inside of the inlet side flange Connect the duct to the canvas duct Number of screws according to...

Страница 53: ...ures against condensation Insulate the complete drain piping in the building Rising piping If necessary to make the slope possible you can install rising piping Drain hose inclination 0 75 mm to avoid...

Страница 54: ...the metal clamp and drain hose and fix it with tie wraps 5 Connect the drain piping to the drain hose 4 mm A A b a d c 3 1 2 6 1 4 d A A A A e 5 2 c b a a Drain pipe connection attached to the unit b...

Страница 55: ...yet completed 1 Temporarily connect electrical wiring Remove the service cover Connect the power supply a Connect the user interface b Reattach the service cover L N a b a Power supply terminal block...

Страница 56: ...vice cover Disconnect the power supply Disconnect the user interface Reattach the service cover When installation of the system is already completed 1 Start cooling operation see the reference guide o...

Страница 57: ...RMATION Also read the precautions and requirements in the 2 General safety precautions 45 CAUTION Piping MUST be installed according to instructions given in 17 Piping installation 457 Only mechanical...

Страница 58: ...diameter p Insulation inner diameter i Insulation thickness t 6 4 mm 1 4 8 10 mm 10 mm 9 5 mm 3 8 12 15 mm 13 mm 12 7 mm 1 2 14 16 mm 13 mm i i t p p If the temperature is higher than 30 C and the hu...

Страница 59: ...nt Only use installation tools e g manifold gauge set that are exclusively used for R32 installations to withstand the pressure and to prevent foreign materials e g mineral oils and moisture from mixi...

Страница 60: ...0 4 0 8 2 45 90 2 A 9 5 33 39 12 8 13 2 12 7 50 60 16 2 16 6 17 2 4 Pipe bending guidelines Use a pipe bender for bending All pipe bends should be as gentle as possible bending radius should be 30 40...

Страница 61: ...are suitably protected against corrosion WARNING MILDLY FLAMMABLE MATERIAL The refrigerant inside this unit is mildly flammable Pipe length Keep refrigerant piping as short as possible Flare connectio...

Страница 62: ...ower supply system complies with the electrical specifications of the units 2 Connecting the electrical wiring to the outdoor unit 3 Connecting the electrical wiring to the indoor unit 4 Connecting th...

Страница 63: ...use this unit is equipped with an inverter A phase advancing capacitor will reduce performance and may cause accidents WARNING Use an all pole disconnection type breaker with at least 3 mm between the...

Страница 64: ...earth wire between the wire retainer and the terminal must be longer than the other wires 18 1 3 Specifications of standard wiring components Component Class 10 15 32 40 50 63 Power supply cable MCA a...

Страница 65: ...e sure to keep the power line and transmission line apart from each other Transmission wiring and power supply wiring may cross but may NOT run parallel 1 Remove the service cover a c b d A B e f e g...

Страница 66: ...1 user interface controls 1 indoor unit L N L N L N IN D OUT D F1 F2 F1 F2 Control box P1 P2 P1 P2 P1 P2 P1 P2 P1 P2 F1 F2 T1 T2 P1 P2 F1 F2 T1 T2 P1 P2 F1 F2 T1 T2 P1 P2 F1 F2 T1 T2 N L a d c b L N...

Страница 67: ...the nameplate of the unit This phenomenon is caused by the compressor that needs a continuous run time of 50 hours before reaching smooth operation and stable power consumption NOTICE Before starting...

Страница 68: ...re are NO refrigerant leaks There are NO missing phases or reversed phases The system is properly earthed and the earth terminals are tightened The fuses or locally installed protection devices are in...

Страница 69: ...user interface Setting Ceiling height This setting must correspond with the actual distance to the floor capacity class and air flow directions If the distance to the floor is m Then 1 M SW 2 7 13 23...

Страница 70: ...rval of air contamination Then 1 M SW 2500 h light 10 20 0 01 1250 h heavy 02 Notification ON 3 01 Notification OFF 02 Setting Thermostat sensor selection This setting must correspond with how if the...

Страница 71: ...oint minus heating setpoint If you want to set Then 1 Example M SW 0 C 12 22 4 01 cooling 24 C heating 24 C 1 C 02 cooling 24 C heating 23 C 2 C 03 cooling 24 C heating 22 C 3 C 04 cooling 24 C heatin...

Страница 72: ...rly please make sure the following is clear for the user Make sure that the user has the printed documentation and ask him her to keep it for future reference Inform the user that he can find the comp...

Страница 73: ...de Description The R32 sensor has detected a refrigerant leak Safety system error leak detection R32 sensor malfunction R32 sensor end of lifetime 6 months before the R32 sensor end of lifetime Malfun...

Страница 74: ...22 Troubleshooting Installer and user reference guide 74 FXDA10 63A2VEB VRV system air conditioner 4P599621 1A 2020 10 Code Description Room temperature thermistor in remote controller abnormality...

Страница 75: ...r 4P599621 1A 2020 10 23 Disposal NOTICE Do NOT try to dismantle the system yourself dismantling of the system treatment of the refrigerant oil and other parts MUST comply with applicable legislation...

Страница 76: ...he unit Part numbering is by Arabic numbers in ascending order for each part and is represented in the overview below by in the part code Symbol Meaning Symbol Meaning Circuit breaker Protective earth...

Страница 77: ...e HAP Light emitting diode service monitor green HIGH VOLTAGE High voltage IES Intelligent eye sensor IPM Intelligent power module K R KCR KFR KHuR K M Magnetic relay L Live L Coil L R Reactor M Stepp...

Страница 78: ...ensor low S PH HPS Pressure switch high S PL Pressure switch low S T Thermostat S RH Humidity sensor S W SW Operation switch SA F1S Surge arrester SR WLU Signal receiver SS Selector switch SHEET METAL...

Страница 79: ...or application explaining how to install configure and maintain it Operation manual Instruction manual specified for a certain product or application explaining how to operate it Maintenance instruct...

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