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9.2.6 Overload current protection diagnosis and solution(F0) 

Error Code 

F0

 

Malfunction decision 

conditions 

An abnormal current rise is detected by checking the specified 

current detection circuit. 

Supposed causes 

 

Power supply problems. 

 

System blockage 

 

PCB faulty 

 

Wiring mistake 

 

Compressor malfunction 

Trouble shooting: 

 

Check  the power supply. Is it 

normal?

Check the connections and 
wires .Is it well connection?

Stop the unit. Check the power 

supply

No

Yes

No

Correct the connections or 

replace the wires.

Yes

Replace the outdoor main PCB

Is there any blocking? 

No

Yes

Clear the blockage

Check the compressor 

resistance values. Is it normal?

Yes

No

Replace the compressor

 

Summary of Contents for YHKE09XEEAMH-RX

Page 1: ...SPLIT TYPE ROOM AIR CONDITIONER Pyrenees Series All Model Numbers Service Manual M Pyrenees 160929 New Released Sep 29 2016 Issue Date...

Page 2: ...he first time 16 5 5 Adding the refrigerant after running the system for many years 17 5 6 Re installation while the indoor unit need to be repaired 17 5 7 Re installation while the outdoor unit need...

Page 3: ...s could cause injury be especially careful of the case edges and the fins on the condenser and evaporator For installation always contact the dealer or an authorized service center Do not install the...

Page 4: ...vels may cause failure of product Install the drain hose to ensure that water is drained away properly A bad connection may cause water leakage Keep level even when installing the product It can avoid...

Page 5: ...he all batteries in the remote control with new ones of the same type Do not mix old and new batteries or different types of batteries There is risk of fire or explosion Do not recharge or disassemble...

Page 6: ...KE18YEEAMHO X 24k YHKE24XEEAMH RX YHKE24YEEAMHO X Cold catalyst filter Silver Ico Filter O Vitamin C Filter O 3M HAM Filter O Bio Filter O Golden Fin O Super Ionizer O Compressor Crankcase Heater O Se...

Page 7: ...5 3 Dimension 3 1 Indoor Unit Model W D H 7K INDOOR 722 187 290 YHKE09XEEAMH RX 722 187 290 YHKE12XEEAMH RX 802 189 297 YHKE18XEEAMH RX 965 215 319 YHKE24XEEAMH RX 1080 226 335...

Page 8: ...6 For 7K INDOOR YHKE09XEEAMH RX For YHKE12XEEAMH RX For YHKE18XEEAMH RX...

Page 9: ...7 For YHKE24XEEAMH RX...

Page 10: ...8 3 2 Outdoor Unit More than 30cm More than 60cm More than 200cm More than 30cm More than 60cm Service space Fence or obstacles...

Page 11: ...9 For 7K OUTDOOR YHKE09YEEAMHO X 487 W1 70 W2 298 555 300 D H 12 60 93 H1 H2 D1 770 W 779 W3 322 D2 25 B1 90 B2 61 5 A2 12 A1 R 6 286 D3...

Page 12: ...10 For YHKE12YEEAMHO X MOB32 12HFN1 QRD0GW YHKE18YEEAMHO X 800 W 514 W1 554 60 85 5 340 12 0 311 815 W3 365 333 D 70 W2 H H1 H2 D1 D2 D3 62 B1 106 B2 20 A1 R20 R6 61 6 A2...

Page 13: ...11 For YHKE24YEEAMHO X MOCA30 24HFN1 QRC8GW...

Page 14: ...YHKE18YEEAMHO X YHKE24YEEAMHO X LIQUID SIDE GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR 2 WAY VALVE 3 WAY VALVE 4 WAY VALVE COOLING HEATING T2 Evaporator temp sensor T1 Room t...

Page 15: ...ID SIDE GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER Compressor 2 WAY VALVE 3 WAY VALVE 4 WAY VALVE COOLING HEATING T2 Evaporator temp sensor T1 Room temp sensor INDOOR OUTDOOR Accumulato...

Page 16: ...4 6500 663kgf cm 6700 683kgf cm 5 2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet Rated current of appliance Nominal cross section...

Page 17: ...3 8 9 52 1 4 6 35 5 10 25 15 YHKE09XEEAMH RX YHKE09YEEAMHO X 3 8 9 52 1 4 6 35 5 10 25 15 YHKE12YEEAMHO X YHKE12XEEAMH RX 3 8 9 52 1 4 6 35 5 10 25 15 YHKE18XEEAMH RX YHKE18YEEAMHO X 1 2 12 7 1 4 6 3...

Page 18: ...3 Connect the charge hose of handle hi connection to the vacuum pump 4 Fully open the handle Lo of the manifold valve 5 Operate the vacuum pump to evacuate 6 Make evacuation for 30 minutes and check w...

Page 19: ...2 way valve and the 3 way valve Connect the charge hose to the valve at the bottom of the cylinder If the refrigerant is R410A make the cylinder bottom up to ensure liquid charge 2 Purge the air from...

Page 20: ...hi connection to the vacuum pump 4 Fully open the handle Lo of the manifold valve 5 Operate the vacuum pump to evacuate 6 Make evacuation for 30 minutes and check whether the compound meter indicates...

Page 21: ...e air be careful of the liquid refrigerant 3 Put the charging cylinder onto the electronic scale and record the weight 4 Open the valves Low side on the charge set and charge the system with liquid re...

Page 22: ...20 6 Wiring Diagram 6 1 Indoor Unit 7K INDOOR YHKE09XEEAMH RX YHKE12XEEAMH RX YHKE18XEEAMH RX YHKE24XEEAMH RX...

Page 23: ...21 6 2 Outdoor Unit YHKE09YEEAMHO X YHKE12YEEAMHO X...

Page 24: ...22 YHKE18YEEAMHO X YHKE24YEEAMHO X...

Page 25: ...itioner is used beyond the above conditions certain safety protection features may come into operation and cause the unit to operate abnormally 2 The room relative humidity should be less than 80 If t...

Page 26: ...ode Displays the self diagnostic codes Dispalys for three seconds when Timer ON Fresh Swing Turbo or Silence feature is activated Dispalys for three seconds when Fresh Swing Turbo or Silence feature i...

Page 27: ...rking 8 3 6 Indoor fan delayed open function When the unit starts up the louver will be active immediately and the indoor fan will open 7s later If the unit runs in heating mode the indoor fan will be...

Page 28: ...is more than setting value the current protection function will be activated and the compressor will stop 8 4 2 2 Outdoor fan running rules The outdoor unit will be run at different fan speed accordin...

Page 29: ...sor will be on T is the programmed parameter of temperature compensation When the AC run in mute mode the compressor will run with low frequency When the current is more than setting value the current...

Page 30: ...5 minutes in defrosting mode For YHKE18XEEAMH RX YHKE24XEEAMH RX models AC will enter the defrosting mode according to the value of temp of T3 and the value range of temp change of T3 and also the com...

Page 31: ...off automatically when reaching the setting off time 8 4 7 5 Timer off on The machine will turn off automatically when reaching the setting off time and then turn on automatically when reaching the s...

Page 32: ...function can keep the inside of indoor unit dry and prevent breeding of mold 8 4 14 Follow me optional 1 If the indoor PCB receives the signal which results from pressing the FOLLOW ME button on remot...

Page 33: ...code Meaning T1 T1 Indoor room temp T2 T2 Indoor coil mid temp T3 T3 Outdoor coil temp T4 T4 Outdoor temp T2B Tb Indoor coil outlet temp TP TP Compressor discharge temp TH TH IPM modular temp Targete...

Page 34: ...d1 d9 130 131 139 E0 E1 E9 140 141 149 F0 F1 F9 150 151 159 Indoor fan speed Outdoor fan speed 0 OFF 1 2 3 4 Low speed Medium speed High speed Turbo For some big capacity motors 14 FF Actual fan spee...

Page 35: ...electricity power in capacitor Electrolytic Capacitors HIGH VOLTAGE CAUTION For other models please connect discharge resistance approx 100 40W or soldering iron plug between terminals of the electrol...

Page 36: ...pen circuit or short circuit 4 times O F3 Compressor discharge temperature sensor T5 open circuit or short circuit 5 times O F4 Outdoor unit EEPROM parameter error 6 times O F5 Outdoor fan speed has b...

Page 37: ...nstallation mistake PCB faulty Trouble shooting Yes Replace the indoor outdoor main PCB Power off then restart the unit 2 minutes later EEPROM a read only memory whose contents can be erased and repro...

Page 38: ...25V to 25V Vs is the voltage between S and N of outdoor unit Red pan S Black pan N Yes Power off then restart the unit 2 minutes later Power off then restart the unit 2 minutes later No Replace the ou...

Page 39: ...off the power supply and turn it on 2 minutes later Is it still displaying the error code Shut off the power supply rotate the fan by hand Does it rotate properly The unit operates normally Find out t...

Page 40: ...NO Color Signal Voltage 1 Red Vs Vm 280V 380V 2 3 Black GND 0V 4 White Vcc 14 17 5V 5 Yellow Vsp 0 5 6V 6 Blue FG 14 17 5V 2 Outdoor DC Fan Motor control chip is in outdoor PCB Power on and check if t...

Page 41: ...oor PCB faulty System problems such as leakage or blocking Trouble shooting Is there cool air blowing out from indoor air outlet Yes Yes Check if T2 sensor is well fixed Correct the installation or re...

Page 42: ...is lower than 0 06V or higher than 4 94V the LED will display the failure Supposed causes Wiring mistake Sensor faulty Trouble shooting Check the connections between temperature sensor and main PCB Ar...

Page 43: ...lems System blockage PCB faulty Wiring mistake Compressor malfunction Trouble shooting Check the power supply Is it normal Check the connections and wires Is it well connection Stop the unit Check the...

Page 44: ...n PCB and compressor If the wires and connectors are broken Correct the connection or replace the wires and connectors Yes No IPM continuity check Check if the IPM terminal resistance values are unifo...

Page 45: ...ytic capacitors discharge completely and dismount the IPM Use a digital tester to measure the resistance between P and UVWN UVW and N Digital tester Normal resistance value Digital tester Normal resis...

Page 46: ...connections and wires are good Disconnect the unit with power supply and try to restart the unit when power supply gets normal No Yes No Correct the connections or replace the wires Yes Power on and w...

Page 47: ...the PCB and IPM radiator are fixed tightly For other models Check if the air flow system of indoor and outdoor units are obstructed Clear up the air inlet and outlet or the heat exchanger of indoor an...

Page 48: ...onnected well Correct the connection or replace the wires and connectors No Yes Check if the IPM installed correctly Correct the installation tighten the screws and apply silicon grease No IPM continu...

Page 49: ...from PCB measure the resistance value with a tester Temperature Sensors Room temp T1 sensor Indoor coil temp T2 sensor Outdoor coil temp T3 sensor Outdoor ambient temp T4 sensor Compressor discharge t...

Page 50: ...29078 117 243 0 38991 2 28 39 8239 38 100 5 62961 78 172 1 25423 118 244 0 37956 1 30 37 1988 39 102 5 39689 79 174 1 2133 119 246 0 36954 0 32 35 2024 40 104 5 17519 80 176 1 17393 120 248 0 35982 1...

Page 51: ...2 422 4 25 222 8 36 97 34 32 76 169 7 82 116 241 2 357 3 27 211 4 37 99 32 94 77 171 7 566 117 243 2 294 2 28 200 7 38 100 31 62 78 172 7 321 118 244 2 233 1 30 190 5 39 102 30 36 79 174 7 086 119 246...

Page 52: ...cking Measure the resistance value of each winding by using the tester Position Resistance Value ASK89D53UEZ ASN98D22UFZ ASM135D23UFZ ATF235D22UMT Blue Red 2 35 20 68 1 57 20 68 1 75 20 68 0 75 20 68...

Page 53: ...2016 Johnson Controls Inc www johnsoncontrols com Doc No M Pyrenees 160929...

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