Toshiba HWS-802XWHT6-E User Manual

ToshibaModel name:Outdoor UnitHWS-802H-EHWS-1102H-EHWS-1402H-EAIR TO WATER HEAT PUMPHydro UnitHWS-802XWHM3-EHWS-802XWHT6-EHWS-1402XWHM3-EHWS-1402XWHT6

9ToshibaFlare connecting procedure and precautions1) Make sure that the flare and connecting portions do not have any flaw and dust.2) Correctly align

99ToshibaNo code<Indication 1> <Indication 2>[Discharge abnormality] Compressor's loss of synchronism due to rapid load change, etc.*

100Toshiba[F12]<Indication 1> <Indication 2>[Suction temperature sensor (TS) failure][F13]<Indication 1> <Indication 2>[Heat s

101Toshiba9-4-3. Temperature sensor, temperature-resistance characteristic tableTC, TWI, TWO, TFI, TTW, TE, TS, TO sensors TD, TL sensorsTypical value

102Toshiba9-5. Operation check by PC board switch9-5-1. Operation check modeThis mode allows to check the operations of the water 2-way valve, water 3

103Toshiba9-6. Brief method for checking the key components9-6-1. Hydro unitNo. Component name Check procedure1Water heat exchange temperature(TC) sen

104Toshiba9-6-2. Outdoor unitNo. Component name Check procedure1CompressorTypeDA220A2F-22L(802H-E)DA422A3F-25M(1102,1402H-E)Measure the resistance val

105Toshiba10Hydro unit and Outdoor Unit SettingsHydro unit1. Hydro unit Setting1-1. Setting switch names and positions1-2. SW02 (System switching 1)1-

106Toshiba2. Hydro unit Function Code Setting2-1. How to set function code<Procedure> Perform the following when no operation is in progress.1 P

107ToshibaFunction code tableFC Item Details First shipment01 Water heat exchanger capacity 0012: 802XWH**-E0017: 1402XWH**-EDepends on type02 Cooling

108ToshibaRemote controller function code tableFC Item Details Fist shipment05 24H/12H display switching 0: 24H display 1: 12H (AM/PM) display 0: 24H

10Toshiba2-3. Tools2-3-1. Necessary toolsIn Air to Water Heat Pump using R410A, the service port diameter of packed valve of the outdoor unit is chang

109Toshiba3. Trial Operation<Procedure>A trial operation is available with an actual operation in progress or stopped. A trial operation is avai

110Toshiba4. Auto Curve SettingFC code setting can make flexible Auto-Curve settings.<Preparation>1 Press the TEST and SET and SELECT butt

111Toshiba5. Time Setting1 Press the TIME button for 4 seconds or longer. (The screen moves to the time setting mode.) (See display )Day, time, ,

112Toshiba6. Scheduled Operation SettingSchedule setting makes the following modes to be flexibly set: hot water supply, heating, cooling, hot water s

113Toshiba6-2. How to start and cancel schedule operation<Operation start>Without schedule operation set, press the remote controller SCHEDULE

114Toshiba8. NIGHT Operation SettingFor nighttime hours, this setting changes set temperature of heating or cooling by 5k as save operation.1 Press th

115Toshiba9. Anti Bacteria SettingThis setting regularly raises the hot water cylinder temperature to prevent bacteria from growing.1 Press the HOT WA

116Toshiba10. Hot Water Boost SettingThis setting heats the water whenever necessary by using the heat pump and hot water cylinder heater.1 Press the

117Toshiba12. Forced Defrosting SettingThe FC code setting (See 2-2) can activate the forced defrosting mode for the outdoor unit operation.(Preparati

118Toshiba14. Display Function of Set Temperature and Other Settings Sensor temperature display calling<Details>This function calls the service

11Toshiba2-4. Recharging of refrigerantRecharge, if necessary, the specified amount of new refrigerant according to the following procedure.NOTE• Neve

119Toshiba15. Failure History Calling Function<Details>This function calls the previous failure details.<Procedure>1 Press the TEST and

120ToshibaOutdoor unit16 Outdoor Unit Setting16-1. Refrigerant recovery controlAlthough HFC refrigerant is "Ozone depletion potential = 0",

121Toshiba16-3. Service support functions (LED indication, Switch operation method)The following settings are available with dip switches.(1) Overview

122Toshiba(2) LED indication switching (SW800, SW803 operation)(2) -1. Indication switching listOperating SW803 can switch the indications of LED D800

123Toshiba(2) -2. Abnormality indicationThe current abnormality and the latest abnormality (including the current one) can be identified by the LED D8

124Toshiba(2)-3. Sensor, Current, Compressor operation frequency, PMV openness indicationThe values detected by controller, such as temperature sensor

125Toshiba(3) Special operation for maintenance and inspection (SW801, SW804)SW801 and SW804 can perform the following special operations for maintena

126Toshiba(Note 1) The forced trial operation with this setting cannot be cancelled by the remote controller in the hydro unit.Be sure to cancel the o

127Toshiba11How to Exchange Main Parts1. Hydro Unit WARNING<Turn off the power breaker>Because the electrical components are energized with high

128Toshiba2 Remote controller 1.How to remove1)Perform the step 1-1. 2)Remove the remote controller from the holder using a flat-blade screwdriver. (R

12ToshibaNOTE• Make sure that the setting is appropriate so that liquid can be charged.• A cylinder with siphon enables liquid to be charged without t

129Toshiba4 Relay boardMCC-14311. How to remove1)Perform the step 1-1. 2)Disconnect the connectors and lead cables connected to other parts from the r

130Toshiba6 Side board 1. Side board (Right) 1)Perform the step 1-1. 2)Remove the fixed screws of the side board (Right).(ST1T Ø4 × 10, 5 screws)3)Rem

131Toshiba9 Expansion vessel1)Perform the step 1-1, step 5, 6, and 7.2)Remove the fixed band of the expansion vessel.(ST1T Ø4 × 8, 4 screws)3)Remove t

132Toshiba12 Pump1. How to remove1)Perform the step 1-1, step 5, 6, and 10.2)Remove the fixed screws of the pump fixing board.(ST1T Ø4 × 8, 2 screws)3

133Toshiba13 Flow switch1. How to remove1) Perform the step 1-1 and step 5. 2)Remove the flow switch.2. How to attach1) Attach a new flow switch in th

134Toshiba15 Heater assembly1. How to remove1)Perform the step 1-1, step 5, 6, 7, and 11.2)Remove the nut of the heater connection.3)Remove the 2 fixe

135Toshiba17 Water heat exchanger assembly1. How to remove1)Perform the step 1-1, step 5, 6, and 8.2)Remove the water pipe fixing board.(ST2T Ø4 × 8,

136Toshiba2. Outdoor Unit2-1. HWS-802H-E No.Exchange parts nameWork procedure Remarks1 Common procedure NoteWear gloves when performing the work.Failu

137Toshiba2 Outlet cabinet How to remove1)Perform the step 1-1. 2)Remove the screws of the outlet cabinet and parting board.(ST1T Ø4 × 8, 3 screws)3)R

138Toshiba4 Electric parts replacement1. Control board1)Perform the step 1-1. WARNINGFor 1 minute after the power is turned off, do not disassemble th

13Toshiba2-5. Brazing of pipes2-5-1. Materials of brazingSilver brazing metalSilver brazing metal is an alloy mainly composed of silver and copper.It

139Toshiba4 Electric parts replacement2. Reactor1)Perform the step 1-1. 2)Remove the relay connector connected to the control board.3)Cut the binding

140Toshiba5 Fan motor 1) Perform the step 1-1 and step 2.2)Remove the fan motor and the flange nut that fixes the propeller fan.• To loosen the flange

141Toshiba6 CompressorCompressor lead1. Remove defective compressor1)Perform refrigerant gas recovery.2)Perform the step 1-1 and step 2 and 3. 3)Remov

142Toshiba6 CompressorCompressor lead10) Remove the discharge and suction pipes connected to the compressor by using a burner.WARNINGWhen removing the

143Toshiba6 CompressorCompressor lead2. Attach the compressor1)Attach the compressor in the reverse order of the removal.Note)• Be sure to replace the

144Toshiba6 CompressorCompressor lead3. Vacuuming1)Connect the vacuum pump to the charge port of the gas piping valve to operate the vacuum pump.2)Per

145Toshiba8 Fan guard 1. How to remove1)Perform the step 1-1 and step 2.NotePerform a replacement work on cardboard or cloth to prevent the product fr

146Toshiba2-2. HWS-1102H-E, 1402H-ENo.Exchange parts nameWork procedure Remarks1 Common procedure NoteWear gloves when performing the work.Failure to

147Toshiba2 Outlet cabinet How to remove1) Perform the step 1-1. 2)Remove the screws of the outlet cabinet and parting board.(ST1T Ø4 × 8, 4 screws)3)

148Toshiba4 Electric parts replacement1. Control board1)Perform the step 1-1. WARNINGFor 1 minute after the power is turned off, do not disassemble th

14Toshiba5) Use the reducing valve to adjust the nitrogen gas flow speed to 0.05 m3/hour or 0.02 MPa (0.2 kgf/cm2).6) After the steps above, keep the

149Toshiba4 Electric parts replacement2. Reactor1)Perform the step 1-1.2)Remove the reactor lead connected to the control board.CN05 White, CN06 White

150Toshiba5 Fan motor 1) Perform the step 1-1 and step 2.2)Remove the fan motor and the flange nut that fixes the propeller fan.• To loosen the flange

151Toshiba6 CompressorCompressor lead1. Remove defective compressor1)Perform refrigerant gas recovery.2)Perform the step 1-1 and step 3.3) Remove the

152Toshiba6 CompressorCompressor lead2. Attach the compressor1)Attach the compressor in the reverse order of the removal.Note)• Be sure to replace the

153Toshiba7 Pulse motor valve coil1. How to remove1)Perform the step 1-1.2)Remove the coil from the pulse motor valve body by pulling upward while rot

154Toshiba12Periodic Inspection ItemsFor a long-term safe operation of this equipment, perform periodic inspection and parts replacement.<Inspectio

155Toshiba13Part Exploded View, Part ListHydro Unit201203208202219236218209 210211213203214215206216207212204205217+00A09-002_01EN_SVM_ALL_Air_to_Wate

156Toshiba220223235234222225226231232229228235233230221224227+00A09-002_01EN_SVM_ALL_Air_to_Water.book Page 156 Monday, October 5, 2009 2:09 PM

157ToshibaSafety Location No.Part No. DescriptionNumber of pieces per unitHWS-1402XWHM3-EHWS-1402XWHT6-EHWS-1402XWHT9-EHWS-802XWHM3-EHWS-802XWHT6-E201

158ToshibaOutdoor Unit (HWS-802H-E)021016015023022029020024013019005030028031032026017004003006 027025 034008007035010009011033002001014018012+00A09-0

15Toshiba3 Specifications*1 Heating performance measurement conditions: outside air temperature 7 or 6 °C, water supply temperature 30 °C, outlet temp

159ToshibaSafety Location No.Part No. DescriptionNumber of pieces per unitHWS-802H-E001 43019904 HOLDER, SENSOR 1002 43032441 NIPPLE, DRAIN 1003 43041

160ToshibaInverter Assembly (HWS-802H-E)112233RRSSTT703Sensor assembly (F4)TD, TL sensorTS, TE, TD sensor705707Terminal (3P)Fuse706Terminal 3P708Senso

161ToshibaSafety Location No.Part No. DescriptionNumber of pieces per unitHWS-802H-E701 43050425 SENSOR ASSY, SERVICE 3702 43063325 HOLDER, SENSOR 170

162ToshibaOutdoor Unit (HWS-1102H-E, 1402H-E)020015021022029030017013018028026 03201901401103102403403500100203302703700400301602500600900800501001200

163ToshibaSafety Location No.Part No. DescriptionNumber of pieces per unitHWS-1102H-E HWS-1402H-E001 43019904 HOLDER, SENSOR 3 3002 43032441 NIPPLE, D

164ToshibaInverter Assembly (HWS-1102H-E, 1402H-E)112233RRSSTT703Sensor assembly (F4)705707Terminal (3P)Fuse706Terminal 3P708Sensor holder (TO)702Sens

165ToshibaSafety Location No.Part No. DescriptionNumber of pieces per unitHWS-1102H-E HWS-1402H-E701 43050425 SENSOR ASSY, SERVICE 3 3702 43063325 HOL

166Toshiba+00A09-002_01EN_SVM_ALL_Air_to_Water.book Page 166 Monday, October 5, 2009 2:09 PM

Toshiba+00A09-002_01EN_SVM_ALL_Air_to_Water.book Page 167 Monday, October 5, 2009 2:09 PM

16Toshiba*1 Heating performance measurement conditions: outside air temperature 7 or 6 °C, water supply temperature 30 °C, outlet temperature 35 °C, r

17Toshiba4 Outside Drawing4-1. Hydro unitHWS-802XWHM3-E, 802XWHT6-EHWS-1402XWHM3-E, 1402XWHT6-E, 1402XWHT9-E960Anchor bolt long hole pitchB leg part4

18Toshiba4-2. Outdoor unitHWS-802H-EPortion BDrain hole ( 25 burring hole)Portion AAir outlet900Air inletAir inlet5-Drain hole ( 20 88 burrin

1ToshibaContents1 SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 NEW REFRIGERAN

19ToshibaHWS-1102H-E, 1402H-EPortion B96394854600Portion A703475461706038020017.5128Air inlet11874383Air outlet15017.5 365Mounting bolt holePower sour

20Toshiba4-3. Hot water cylinder5505952066.62040550595111410905951497.61474550Specification for UK onlySpecification for UK onlySpecification for UK o

21Toshiba5 Wiring Diagram5-1. Hydro Unit1133123456145623WHIWHITransformerORNORNREDREDBRWBRWCN102(WHI)11323CN101(WHI)CN202(YEL)BLKBLKCN201(WHI)2211Ther

22Toshiba5-2. Outdoor UnitControl board(Blue)(White)HMS-1102,1402H-E only(White)(White)Upper(White)Operating power4-way valve coilReactor230V50HzEarth

23Toshiba5-3. Hot Water Cylinder Unit12TB03(230V)ABTB06(TTW)Supply 230 V from hydro unitCable size 1.5 mm2 (minimum) To hydro unitGreen /YellowGreen /

24Toshiba6 Key Electric Component Rating6-1. Hydro UnitHWS-802XWHM3-E, 802XWHT6-E O ·········AppliedOP······· Optional accessoryNo. Component nameMode

25ToshibaHWS-1402XWHM3-E, 1402XWHT6-E, 1402XWHT9-E O ·········AppliedOP······· Optional accessoryNo. Component nameModel nameType name RatingM3-E T6-E

26Toshiba6-2. Outdoor UnitHWS-802H-E No. Component name Type name Rating1Compressor DA220A2F-22L2Outdoor fan motor ICF-280-A60-1 Output 60 W34-way val

27ToshibaHWS-1102H-E, 1402H-E No. Component name Type name Rating1Compressor DA422A3F-25M2Outdoor fan motor (x2) ICF-280-A100-1 Output 100 W3Reactor (

28Toshiba6-3. Hot Water Cylinder Unit O ·········AppliedNo. Component nameModel nameType name Rating1501CSHM3-E(-UK)2101CSHM3-E(-UK)3001CSHM3-E(-UK)1H

2Toshiba9 Method of Defect Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 649-1.Matters to be confi

29Toshiba6-4. Water Heat Exchange Control BoardHWS-802XWHM3-E, 802XWHT6-EHWS-1402XWHM3-E, 1402XWHT6-E, 1402XWHT9-ERelay board connectorCN501Transforme

30Toshiba6-5. Outdoor Control BoardHWS-802H-EElectrolytic capacitorsReactor connection connectorCompressor output terminalsCN202CN201CN200Fan motor ou

31ToshibaHWS-1102H-E, 1402H-EFan motor output (Upper)CN400(White)Fan motor output (Lower)CN300(White)Case thermostat connectorCN609(Blue)Power circuit

32Toshiba7 Refrigeration Cycle / Water System Diagram 7-1. Water System DiagramMMFan coil unitRadiator unitFloor heatingBy-pass valve(locally procu

33ToshibaInstallation example of water circuitThe water circuit for a system without buffer tank ((1), (2), (3), (5)) requires 5 or more branches of F

34Toshiba7-2. Refrigeration Cycle System DiagramHWS-802XWHM3-E, 802XWHT6-E/802H-EHWS-1402XWHM3-E, 1402XWHT6-E, 1402XWHT9-E/1102H-E, 1402H-EPTWOTHOTWIT

35Toshiba8 Operational DescriptionThis chapter describes the working circuit and control of Air to Water Heat Pump about the following operations.Item

36ToshibaItem Operation flow and applicable data, etc. Operation description8-1.Basic Operation1) Operation controlRemote controller1. PurposeThe oper

37Toshiba8-1.Basic Operation2) Hot water supply operation Hot water supply operation1. Purpose Hot water supply2. DetailsThis section performs hot wat

38Toshiba8-1.Basic Operation4) Cooling operationNOTE:No coding mode in default setting. When use the cooling mode, please change the FC02 to “0”.Relat

3Toshiba1 SAFETY PRECAUTIONSThe unit and this service guide list very important safety precautions.Understand the following details (indications and s

39ToshibaItem Operation flow and applicable data, etc.8-2.Operation Mode and Control MethodThe following shows the operation modes and controlled obje

40Toshiba8-2.Operation Mode and Control Method2) Heating operation<Operation only for ZONE1>• This operation is enabled when DP_SW12_2 ZONE1 is

41Toshiba8-2.Operation Mode and Control Method3) Cooling operationPressing the [ZONE1, 2] button and then [OPERATION MODE] starts a cooling operation.

42Toshiba8-2.Operation Mode and Control Method5) Simultaneous operations of "hot water supply" and "cooling"For simultaneous opera

43Toshiba8-2.Operation Mode and Control Method7) Hot water boost operationA hot water boost operation boils water quickly to the set temperature TSC_H

44Toshiba8-2.Operation Mode and Control Method8) Anti bacteria (ANTI BACTERIA) operationAn anti bacteria operation regularly performs a Hot water supp

45Toshiba8-2.Operation Mode and Control Method9) Night set back (NIGHT SET BACK) operationA night set back operation performs heating at 5°K lower and

46Toshiba8-2.Operation Mode and Control Method11) AUTO operationAn auto operation sets the water temperature TSC_F depending on the outside temperatur

47Toshiba8-2.Operation Mode and Control Method12) Nighttime low-noise operationA night time low-noise operation reduces operation frequency and the nu

48Toshiba8-3.Hydro Unit Control1) Capacity control (compressor, high-temperature release, low-temperature release)This unit controls the compressor fr

4Toshiba<No modification>Do not modify the unit.• Do not disassemble or modify the parts also.• A fire, an electric shock, or an injury may occu

49Toshiba8-3.Hydro Unit Control1-2) High temperature release controlA heat pump operation is performed as shown in the table below according to the TC

50Toshiba8-3.Hydro Unit Control2) Heater control2-1) Hot water supply operationDuring a hot water heat pump operation, the unit energizes the hot wat

51Toshiba8-3.Hydro Unit Control2) Control at the time of heating heater operation• Controlled Object: Backup heater, Booster heaterThe backup heater c

52Toshiba8-3.Hydro Unit Control3) Circulation pump controlOne circulation pump (enhancing pump P2) can be connected to the unit in addition to the bui

53Toshiba8-3.Hydro Unit Control5) Mixing Valve control (2-temperature heating control)To set different radiator unit supply temperatures or floor heat

54Toshiba8-3.Hydro Unit Control7) Automatic restart controlThe unit records operation information before a power outage and retrieves the information

55Toshiba8-3.Hydro Unit Control8-2) Piping freeze prevention control 2TC and TWO activates freeze prevention regardless of a heat pump operation mode.

56Toshiba3. Hydro Unit Control10) Room temperature thermostat control (Option board TCB-PCM03E is necessary. Connect the connection cable to the water

57Toshiba8-4.Outdoor unit control1) PMV (Pulse motor valve) controlValve opening is controlled using the expansion valve with a pulse motor according

58Toshiba8-4.Outdoor unit control3) Current release controlThe number of compressor rotation is controlled so that current value of the compressor dri

5Toshiba<Check insulation>After the work is completed, check with an insulating-resistance tester (500V) that the insulation resistance between

59Toshiba8-4.Outdoor unit control5) Outdoor fan controlThe outdoor side control part controls the number of fan motor rotations by receiving an operat

60Toshiba8-4.Outdoor unit control5-2) Hot water supply and heating fan control1) The TE sensor, TO sensor and operation frequency control the outdoor

61Toshiba8-4.Outdoor unit control6) Defrosting controlThis control defrosts the outdoor heat exchanger. The temperature sensor (TE sensor) of the outd

62Toshiba8-4.Outdoor unit control7) Winding heating control1) This control energizes the inactive compressor instead of the case heater to warm the co

63Toshiba8-4.Outdoor unit control10) High temperature release control1) To prevent excessive hi pressure rise, operation frequency is controlled by th

64Toshiba9 Method of Defect Diagnosis In order to diagnose the defective part of the heat pump system, first understand the symptom of the defect.(1)

65Toshiba9-1. Matters to be confirmed first9-1-1. Check the power supply voltageCheck that the power supply voltage is AC230 V±23 V. If the power supp

66Toshiba9-3. Outline of the determination diagramThe first determination of whether a defective part is in the hydro unit or the outdoor unit can be

67Toshiba9-3-4. How to diagnose by error codeDefect mode detected by the water heat exchangeO ... Possible× ... Not possibleCheck codeDiagnostic func

68ToshibaA07Pressure switch operationThe pressure switch operates for 300 sec continuously during the heat pump operation. O×1. Almost no or little wa

6Toshiba2 NEW REFRIGERANT (R410A) This Air to Water Heat Pump adopts a new refrigerant HFC (R410A) to prevent destruction of the ozone layer.The worki

69ToshibaF17TFI sensor errorOpen or short circuit in the floor temperature sensor. × O1. Check the resistance value and disconnection of the floor-inl

70ToshibaDefect mode detected by the outdoor unitO ... Possible× ... Not possibleCheck codeDiagnostic functional operationDetermination and actionNum

71ToshibaH04Operation of case thermostatWhen the case thermostat exceeds 125°C. O×1. Check the refrigeration cycle (gas leak). 2. Check the case therm

72ToshibaP20High pressure protection operationWhen an abnormal stop occurs due to the high pressure release control. When the heat exchange temperatur

73ToshibaDefect mode detected by the remote controlCheck codeDiagnostic functional operationDetermination and actionOperational causeStatus of air-con

74Toshiba9-4. Diagnosis flow chart for each error code9-4-1. Hydro unit failure detection[A01] Error Pump flow determinationPump rotatesReplace TC sen

75Toshiba[A02] Error Temperature rise and error short circuitReplace TWI, TWO, and THO sensorsNo(TWI,TWO,THO 70°C)TWI, TWO, and THO sensor character

76Toshiba[A03] Error Temperature rise and error short circuitReplace TTW sensorNo(TTW 85°C is detected)TTW sensor characteristic is correctYesNoHot

77Toshiba[A04] Error Freeze prevention controlWhen the outside temperature or inlet water temperature is low (approx. 20°C or lower) and the room load

78Toshiba[A05] Error Piping freeze prevention controlWater heat exchange control board DPSW11-1 is ONReplace backup heater and safety valveSet water h

7Toshiba2-2. Installing refrigerant pipe2-2-1. Steel pipe and jointFor refrigerant piping, steel pipe and joints are mainly used. Select those comply

79Toshiba[A07] Error Pressure switch operation (Hot water supply/Heating operation)Replace flow switchRemove wasteFlow switch is normalSecure water ci

80Toshiba[A08] Error Lo pressure sensor lowering operation failure (Cooling/Defrosting operation) Replace flow switchRemove wasteFlow switch is normal

81Toshiba[A09] Error Overheat prevention thermostat failure (Hot water supply/Heating operation)Put water into water circuit (Recommended: 1 - 2 Bar)R

82Toshiba[A11] Error Release protection operationReplace flow switchRemove wasteFlow switch is normalSecure water circulation amountCirculation flow s

83Toshiba[A12] Error Heating or Hot water supply heater failureWater heat exchanger board DPSW11-1,2 is ONReplace booster heater unit and safety valve

84Toshiba[E04] ErrorOutdoor unit operatesGroup address of remote controller is correctly setYesCheck water heat exchanger control boardIf defective, r

85Toshiba[F03] Error TC sensor failure [F04] Error TD sensor failure [F06] Error TE sensor failureCorrect TC sensor connectionReplace TC sensorNoNoTC

86Toshiba[F07] Error TL sensor failure[F08] Error TO sensor failure[F10] Error TWI sensor failureCorrect TL sensor connectionReplace TL sensorNoNoTL s

87Toshiba[F11] Error TWO sensor failure[F14] Error TTW sensor failure[F17] Error TFI sensor failureCorrect TWO sensor connectionReplace TWO sensorNoNo

88Toshiba[F18] Error THO sensor failure[F19] Error THO sensor detach failureCorrect THO sensor connectionReplace THO sensorNoNo(See characteristic tab

8Toshiba2-2-2. Processing of piping materialsWhen installing refrigerant pipe, prevent water or dust from entering the pipe, and do not use oil other

89Toshiba[F20] Error TFI detach failure[F23] Error Lo pressure sensor detach failureAttach TFI sensor to pipeReplace TFI sensorNoNoTFI sensor is attac

90Toshiba[F29] Error EEPROM failureA failure is detected in the IC10 non-volatile memory on the water heat exchanger board during a hot water supply u

91Toshiba9-4-2. Outdoor Unit Failure DetectionDiagnosis procedure for each check code• One check code may indicate multiple symptoms. In such a case,

92Toshiba[H02]<Indication 1> <Indication 2>[Compressor lock][H04]<Indication 1> <Indication 2>[Case thermostat operation][L10]

93Toshiba[L29] * Any of the following abnormality may occur.Seeing the LED on the outdoor board can determine which abnormality occurs.Communication f

94Toshiba[P03]<Indication 1> <Indication 2>[Abnormal outlet temperature][P04] * Any of the following abnormality may occur.Seeing the LED

95Toshiba[P07]<Indication 1> <Indication 2>[Heat sink overheat failure][P15]<Indication 1> <Indication 2>[Gas leakage detectio

96Toshiba[P19]<Indication 1> <Indication 2>[4-way valve invert failure]Outdoor control board operation check direction (Self-hold valve)1)

97Toshiba[P20]<Indication 1> <Indication 2>[Hi pressure protection operation]Check codeOutdoor LED indicationCheck and Action procedure (N

98Toshiba[P22]<Indication 1> <Indication 2>[Blower system failure]Outdoor fan sole operation check1)With the dip switch SW804 set as in th