Manuals / Toshiba / Household Appliance / Heat Pump

Toshiba HWS-1402XWHT6-E, HWS-802XWHT6-E F07 Error TL sensor failure, F08 Error to sensor failure

Models: HWS-1402XWHT9-E HWS-1402XWHM3-E HWS-1402XWHT6-E HWS-1501CSHM3-E(-UK) HWS-1402H-E HWS-2101CSHM3-E(-UK) HWS-3001CSHM3-E(-UK) HWS-802XWHM3-E HWS-802H-E HWS-802XWHT6-E

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[F07] Error TL sensor failure

Start

TL sensor	No
TL sensor		Correct TL sensor
connector (CN604) is		Correct TL sensor
connector (CN604) is		connection
connected		connection
connected
Yes
TL sensor	No
TL sensor		Replace TL sensor
resistance characteristic
resistance characteristic	(See characteristic table on page 101)
is normal
is normal

Yes

Replace water heat exchange control board

[F08] Error TO sensor failure

Start

TO sensor	No
TO sensor		Correct TO sensor
connector (CN602) is		Correct TO sensor
		connection

connected
connected
Yes
TO sensor	No
TO sensor	No	Replace TO sensor
resistance characteristic
resistance characteristic	(See characteristic table on page 101)
is normal
is normal

Yes

Replace water heat exchange control board

[F10] Error TWI sensor failure

Start

TWI sensor		No
TWI sensor		No
connector (CN205) is
connector (CN205) is
connected
connected
Yes

Correct TWI sensor connection

TWI sensor	No
TWI sensor	No	Replace TWI sensor
characteristic is normal
characteristic is normal	(See characteristic table on page 101)
Yes	(See characteristic table on page 101)
Yes

Replace water heat exchange control board

Page 87

Image 87

Toshiba HWS-1402XWHT6-E, HWS-802H-E F07 Error TL sensor failure, F08 Error to sensor failure, F10 Error TWI sensor failure

Contents

HWS-1501CSHM3-E-UK HWS-2101CSHM3-E-UK HWS-3001CSHM3-E-UK Hydro Unit Outdoor UnitHot Water Cylinder HWS-802XWHT6-E HWS-1102H-E HWS-1402XWHM3-E HWS-1402H-E Contents Method of Defect Diagnosis About indication About symbols∗ For details, see the schematic ∗ Ground wire of class D grounding No modification Do not modify the unit Do not make additional charge of the refrigerant∗ For details, see the parts price list ∗ Thick gloves such as cotton work gloves Failure to do so may cause an electric shock NEW Refrigerant R410A Safety During Installation and Service Wall thickness of copper pipe Installing refrigerant pipeSteel pipe and joint Copper pipe 4 Dimension of flare for R410A and flare nut Flare and precautionsFlare dimension 3 Flare processing related dimension for R410A 5 Tightening torque of flare for R410A Reference values Flare connecting procedure and precautions Gauge manifold ToolsNecessary tools General tools Conventional tools are available For refrigerant charging, see the figure below Recharging of refrigerant Gauge manifold Outdoor unit Refrigerant cylinder Cylinder without siphon Brazing Brazing of pipesMaterials of brazing Flux Robber plug Prevention of oxidation during brazing Specifications Page Hydro unit Outside Drawing HWS-802H-E HWS-1102H-E, 1402H-E HWS-1501CSHM3-E-UK HWS-3001CSHM3-E-UKHWS-2101CSHM3-E-UK Block of the outdoor unit Wiring Diagram Control board Hot Water Cylinder Unit Key Electric Component Rating HWS-802XWHM3-E, 802XWHT6-EModel name Component name Type name Rating M3-E T6-E Model name Component name Type name Rating M3-E T6-E T9-E Component name Type name Rating CAM-MD12TF-15US-622KXTMQO-SS OFF = 125 ± 4 C, on = 90 ± 5 C CSH Model name Component nameType name Rating Thermal cut-out Water Heat Exchange Control Board F03 250 V, 10 a P01Red P02White Earth lead wire P09 BlackOutdoor Control Board D503 Green, Outdoor = Hydro F700250V,3.15A Water DiagramSystem Diagram System Installation example of water circuit Outdoor unit Hydro unit Refrigeration Cycle System DiagramHWS-802XWHM3-E, 802XWHT6-E/802H-E HWS-1402XWHM3-E, 1402XWHT6-E, 1402XWHT9-E/1102H-E, 1402H-E Operational Description Cooling Temperature setting Operation Remote control settingsHeating Temperature setting Hot water supply Temperature setting Hydro unit Hot water temperature 40C to 75CHeating temperature 20C to 55C Backup heater control Cooling temperature 10C to 25C TransmitOutdoor unit Operation flow and applicable data, etc TTW sensorHot water cylinder unit TWI Zone Operation with heating priority Pressing the ZONE1, 2 button and then Operation ModeStarts a cooling operation Pump priority Simultaneous operations of hot water supply and cooling 75C Hot water operation Switches to Hot water Supply operationHOT Water button set to on HOT Water Boost button set to on Heating side Supply heater HOT Water button set to onAnti bacteria Anti Bacteria operation Another 30 minutes can be set with FC0B Night set back Night SET Back operation Operation 35B 30C 25D 20E Nighttime low-noise operation Operation Inverter output change Hz signal correctionController set temperature Temperature settings Water outlet temperature TC=TWO TC TWO Keep THO TSCF-0 TSCF-2Keep TSCF-4 Non-interlocked with the built-in pump Circulation pump control Hydro Unit SW3 Flow rateL/minSW3 SW2 SW1 1Piping freeze prevention control Automatic restart controlHeating operation Night Set Back Piping freeze prevention control TWOTWI, TWO, THO TCB-PCMO3E Hydro Unit Room temperature thermostat control Option PMV Pulse motor valve control Main circuit control current Settings YesCurrent degradation Current release control Number of rotation hold TL C WE tap + 1 tap/20 secs For 1402H-E Hot water supply and heating fan controlFor 802H-E For 1102H-E Heating operation starts Inside brackets For 802H-EOFF Continuously energized Not energizedIntermittently energized Output equal to 40W 802H-E 1102H-E, 1402H-E Heating Cooling TC TWO+2 61C Method of Defect Diagnosis Procedure of defect diagnosis Remark 1 Non-defective operation Check the power supply voltageAbout the installation of the temperature sensor Matters to be confirmed first How to cancel a check code on the remote controller Outline of the determination diagramProcedure of defect diagnosis How to determine from the check code on the remote control 3TWI How to diagnose by error codeDefect mode detected by the water heat exchange 2TWO Diagnostic functional operation Number Diagnostic functional operation Number Defect mode detected by the outdoor unit Diagnostic functional operation Number Diagnostic functional operation Number Defect mode detected by the remote control Diagnostic functional operationDetermination and action Diagnosis flow chart for each error code A01 Error Pump flow determinationHydro unit failure detection Yes Water outlet A02 Error Temperature rise and error short circuitReplace flow switch Replace TWI, TWO, and THO sensors A03 Error Temperature rise and error short circuit StartYes TTW 85C is detected Replace TTW sensor A04 Error Freeze prevention control A05 Error Piping freeze prevention control Place buffer tank Yes Lower set temperatureRemove waste Water circuit Yes Defrost outdoor unit Yes Raise set temperatureWhere frost remains Cooling overload operation Put water into water circuit Recommended 1 2 Bar Water cycle contains water A11 Error Release protection operation Secure water Waste stuck inside Remove wasteTWI sensor is Attach TWI sensor A12 Error Heating or Hot water supply heater failure E04 Error Yes Replace water heat exchange control board F03 Error TC sensor failureF04 Error TD sensor failure F06 Error TE sensor failure F07 Error TL sensor failure F08 Error to sensor failureF10 Error TWI sensor failure F11 Error TWO sensor failure F14 Error TTW sensor failureF17 Error TFI sensor failure F19 Error THO sensor detach failure F18 Error THO sensor failure TFI s ensor Is attached to pipe F20 Error TFI detach failureF23 Error Lo pressure sensor detach failure Lo pressure sensor Yes Is detached CN207 When operation L09 Error F29 Error Eeprom failureF30 Error Enhanced IC failure L07 Error Outdoor Unit Failure Detection Diagnosis procedure for each check code Lock compressor Replace it Yes Board side Wiring connectionIs normal Check and correct Compressor is normal Yes Eeprom failure → See F31 details Heat sink temperature sensor TH failure → See F13 detailsCommunication failure between MCUs Check outdoor control board If defective, replace it Power voltage abnormally Yes Is cleared, Blower is not blocked Deal with short circuit Short circuit, etc YesHeat sink overheat failure Outdoor control SW804 SW801 Way valve invert failure Heating operation Yes Outdoor fan operates normally Check the same item asElement Short circuit Replace fan motor Power voltage is normal Check wiring 230ACV ±Diagram Yes Correct wiring Replace outdoor board Correct TE sensor Characteristic tableTL sensor connector CN604 is connected TL sensor resistance characteristic is normal Suction temperature sensor TS failure TS sensor resistance characteristic is normal100 101 TC, TWI, TWO, TFI, TTW, TE, TS, to sensorsTD, TL sensors Rotary Check contents Remark Switch Operation check by PC board switchOperation check mode Operation check mode 103 Component name Check procedureBrief method for checking the key components Hydro unit 14.8 ± 1.5 Ω Outdoor unit104 802H-E 32.6 ± 3.3 Ω 10Hydro unit and Outdoor Unit Settings Hydro unit Hydro unit Setting105 106 Hydro unit Function Code Setting Details First shipment 107 108 Details Fist shipmentNighttime low-noise end time 109 Trial Operation TSC-F Auto Curve SettingSet temperature A40 B35 C30 D25 E20 20 T1 110 111 Time Setting Scheduled Operation Setting Set temperature, day , and time112 113 Frost Protection Setting 114 Night Operation Setting 115 Anti Bacteria Setting Hot Water Boost Setting Nighttime Low-noise Setting116 Forced Defrosting Setting Rated Operation Setting117 118 Display Function of Set Temperature and Other Settings 119 Failure History Calling Function 120 Outdoor unit Outdoor Unit Setting 121 Function and details 122 123 LED indication Item setting Temperature sensor124 Current Compressor PMV openness Operation Pulse Frequency Operation when press button switch SW801 is pressed 125SW804 126 SW804 Operation when press button switch SW801 is pressed 127 11How to Exchange Main PartsWork procedure Remarks Hydro Unit Controller holder Remote controller cable128 Remote MgSW Electric parts assembly129 Relay board 130 Exchange parts name Work procedure Remarks 131Expansion vessel Board 132Pump Fixing Exchanger inlet pipe so that the wire is place on 133Manometer 134 135 136 Outdoor Unit 2-1. HWS-802H-E 137 CN202 Black Remove the power source cable from the power138 Lead 139 Fan motor lead Binding tie Compressor lead, Relay connector Fan motor 140Propeller fan Turn it right to loosen Flange nut 141 142 143 Pulse motor 144Spring Valve body 145 146 Valve fixing board Inverter assembly147 Heat exchanger 148 Case thermostat, fan motorReactor lead CN05 White Reactor lead Binding tie Reactor body Name Electric parts Reactor Replacement 1Perform the step149 Reactor lead Fixing rubber Projection/Refrigerant cycle side Fan motor 150 Compressor nut 3 nuts 151 152 Positioning Motorized Projection Control valve coil Pulse motor valve coil 1. How to remove 1Perform the step153 Recess Pulse motor valve body 12Periodic Inspection Items Inspection items154 155 13Part Exploded View, Part List 156 157 002 158Outdoor Unit HWS802H-E 159 TD, TL sensor Inverter Assembly HWS-802H-ESensor assembly 701 F6 TS, TE, TD sensor 160 161 Outdoor Unit HWS-1102H-E, 1402H-E 162 163 Inverter Assembly HWS-1102H-E, 1402H-E 164TS, TE, to sensor 4316V357 16543158190 Reactor 166