Sanyo XMS0972, XMS1272 service manual Self-diagnostics Lamps

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(1) Self-diagnostics Lamps

INDOOR UNIT

OPERATION button

 

 

OPERATION lamp

 

TIMER lamp

 

HIGH POWER lamp

 

REMOTE CONTROL receiver

Since the indications cover various units, the corresponding parts listed below may not be present in some models.

Indication on indoor unit

.... OFF

 

 

.... Blinking

.... ON (Illuminated)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OPERATION

Timer

HIGH POWER

Code

Diagnostics items

 

 

 

 

 

Diagnostics contents

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S01

Room temperature sensor failure

(1)

Sensor open circuit or short circuit

 

 

 

 

 

 

 

 

 

 

(2)

Contact failure at connector or open circuit at terminal crimping location

 

 

 

S02

Indoor heat exchanger sensor failure

 

 

 

(3)

Indoor/outdoor PCboard failure

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S04

Compressor temperature sensor failure

(1)

Sensor open circuit or short circuit

 

 

 

 

 

 

 

 

 

 

(2)

Contact failure at connector or open circuit at terminal crimping location

 

 

 

S05

Outdoor heat exchanger sensor failure

 

 

 

(3)

Outdoor PCboard failure

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S06

Outdoor air temperature sensor failure

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S07

Outdoor electrical current detection

Outdoor PCboard failure

 

 

 

 

 

 

 

 

 

 

failure

 

 

 

 

 

 

 

 

 

 

 

Indoor/outdoor communications failure

(1)

Mis-wiring

(2) AC power failure

(3) Blown fuse

(4) Power Relay failure

 

 

 

E01

(5)

Indoor or outdoor PCboard failure

(6) Outdoor Fan Motor failure (7) Reactor failure

 

 

 

(serial communications)

(8)

High-Pressure Switch failure

(9) Overload Relay failure

(10) Magnetic Coil failure

 

 

 

 

 

* See detailed flowchart in this section.

 

 

 

 

 

 

 

E02

• HIC circuit failure

(1)

HIC or power Tr failure (2) Outdoor fan does not turn.

(3) Instantaneous power outage

 

 

 

(4)

Service valve not opened.

(5) Outdoor fan blocked.

(6) Continuous overload operation

 

 

 

• Power Tr (transistor) circuit failure

 

 

 

 

 

(7)

Compressor failure

(8) Outdoor PCboard failure

 

 

 

 

 

 

 

E03

Outdoor unit external ROM (OTP data)

(1)

External ROM data failure

 

(2) Outdoor PCboard failure

 

 

 

 

failure

 

 

 

 

 

E04

Peak current cut-off

(1)

Instantaneous power outage

(2) HIC or power transistor failure

 

 

 

(3)

Outdoor PCboard failure

 

 

 

 

 

 

 

 

 

 

E05

PAM circuit failure

(1)

Outdoor PCboard failure

(2) Outdoor power supply voltage failure

 

 

 

Active circuit failure

 

 

 

E06

Compressor discharge overheat

(1) Electric expansion valve failure

(2) Capillaries choked

(3) Shortage of refrigerant

 

 

 

prevention activated.

(4) Continuous overload operation

(5) Outdoor fan does not rotate

(6) Outdoor PCboard failure

 

 

 

E07

Indoor fan operating failure

(1)

Fan motor failure

(2) Contact failure at connector

 

(3) Indoor PCboard failure

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E08

4-way valve switching failure

(1)

4-way valve failure (heat pump model only)

 

 

 

 

 

 

 

Indoor zero-cross failure

(2)

Outdoor PCboard failure

 

 

 

 

 

 

 

 

 

 

E09

No-refrigerant protection

(1)

Service valve not opened.

 

(2) Shortage of refrigerant

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E10

DC compressor drive circuit failure

(1)

Open phase

(2) Outdoor PCboard failure

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E11

Outdoor fan operating failure

(1)

Fan motor failure

(2) Contact failure at connector

 

(3) Outdoor PCboard failure

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Outdoor system communications failure

(1)

Mis-wiring

(2) Blown fuse

(3) Power Relay failure

 

(4) Outdoor PCboard failure

 

 

 

E12

OLR operation

(5)

Compressor failure

 

 

 

 

 

 

 

 

 

 

 

Outdoor power supply open phase

 

 

 

 

 

 

 

 

 

 

 

 

Outdoor coil freezing

* See detailed flowchart in this section.

 

 

 

 

 

 

 

E13

Freeze-prevention operation activated.

(1)

Indoor fan system failure

(2) Shortage of refrigerant

(3) Low-temperature operation

TIMER

BLINKING (3 SEC. INTERVAL)

LAMP

 

FLOAT SWICTH (FS) IS ACTIVED.

(1) DRAIN PUMP FAILURE (2) FS FAILURE (3) CHOKED DRAIN HOSE

32

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Contents 11,900BTU / h 17,500BTU / hSafety Precautions Prohibit Table of Contents STK-RCS-7TWSUA Applicable MULTI-OUTDOOR Units Operating Range Indoor Air Intake Temp Outdoor Air Intake TempIndoor Unit XMS0972 & PNR-XS1872 SpecificationsUnit Specifications 208V Indoor UnitXMS0972 & PNR-XS1872 XMS1272 & PNR-XS1872 XMS1272 & PNR-XS1872 XS1872 & PNR-XS1872 XS1872 & PNR-XS1872 Major Component Specifications Indoor UnitIndoor Unit Body XMS0972 Indoor Unit PanelIndoor Unit Body XMS1272 Indoor Unit Body XS1872 Other Component Specifications ModelKTEC-35-S98Indoor heat exchanger sensor ModelPT2M-51H-S3Dimensional Data 534Indoor Unit XS1872 & PNR-XS1872 Indoor unit Refrigerant Flow DiagramRefrigerant Flow Diagram 8FA2 Electrical Data5250-46900 Maintenance Disassembly ProcedureDisconnect the connectors in the control box Remove the air intake grillRemove the ceiling panel Remove the indoor air temperature sensor Remove the power box and control boxScrew Ground cable CN07 ScrewCN03 CN09 CN06 Remove the main body lower section Remove the drain pump and float switch Remove the heat exchanger sensorRemove the turbo fan and fan motor Remove the heat exchangerFunctions Operation FunctionsEmergency operation PAM- controlTimer backup Lamp colorsProtective Functions Freeze preventionMethod of Self-Diagnostics TroubleshootingPrecautions before Performing Inspection or Repair Self-diagnostics Lamps Using the TEST/T-RUN terminals Checking the Indoor and Outdoor UnitsReplace the controller Replace the circuit board or the fuseSerial Communication Error Identification Procedure Before the OperationOff Blinking Illuminated Condition E01Terminal board Outdoor Unit Condition E12 Trouble Diagnosis of Fan Motor Indoor Fan MotorNoise Malfunction and Electromagnetic Interference Noise malfunctionElectromagnetic interference Locations most susceptible to noise Trouble CorrectionXMS0972 & PNR-XS1872 XMS1272 & PNR-XS1872 Mode D’EMPLOI Pub. OI-85264181141000 SanyoFeatures ContentsAlert Symbols Installation LocationSafety Instructions Product InformationNames of Parts Unit Display and Operation ButtonRemote Control Unit Display SymbolsRemote Control Unit HR. Timer button 1-HOUR OFF Timer Temperature setting buttons TempMode selector button SensorUsing the Remote Control Unit Manual fan speed Operation with the Remote Control UnitAutomatic fan speed Setting the Timer Cooling and DRY ModeSpecial Remarks How it works?Operation Indication 1030 pm 710 am 1100 am Present timeUsing the 1-HOUR OFF Timer Adjusting the Airflow DirectionTips for Energy Saving Do notCare and Cleaning When the air conditioner is not runningCleaning the flaps Cleaning the main unit and remote control unitHow to remove the filter How to remove the air intake grilleAir filter Care After a prolonged idle periodOperating Range TroubleshootingWired Remote Controller XS1872 & PNR-XS1872 XS1271 XS1872 Pub. OI-85264181108001 SanyoOI-108-2-EG Important Multiple use is applied for the model XS1872 only OI-108-4-EG OI-108-5-EG OI-108-6-EG OI-108-7-EG OI-108-8-EG OI-108-9-EG OI-108-10-EG OI-108-11-EG OI-108-12-EG OI-108-13-EG OI-108-14-EG OI-108-15-EG Appendix C Installation Instructions Contents For Indoor UnitFor safe installation and trouble-free operation, you must Please Read Before Starting…In a Ceiling or Wall …In a RoomTools Required for Installation not supplied Accessories Supplied with Unit TableGeneral Optional Copper Tubing KitInstallation Site Selection Additional Materials Required for InstallationEmbedding the Tubing and Wiring H1, H2, H3, H4How to Install the Indoor Unit Preparation for SuspendingSuspending the Indoor Unit Placing the Unit Inside the CeilingInstalling the Drain Piping Do not install an air bleeder asAttach so that the hose band Fastener is on the sideChecking the Drainage 10aInstalling the Ceiling Panel Indoor unit Gaps Ceiling surface Ceiling panelWiring the Ceiling Panel and the Indicator Attaching the air-intake grilleChecking After Installation When Removing the Ceiling Panel for ServicingAdjusting the Auto Flap Wiring Instructions General precautions on wiringFor stranded wiring How to connect wiring to the terminal For Indoor UnitFor Outdoor Unit For solid core wiring or F-cable How to Test Run the Air Conditioner Remote Control Unit Installation Position Rear side Remote control unit mountTo take out the remote control unit, pull it forward Mounting on a WallAddress Switch Address Setting of the Remote Control UnitConnecting a Home Automation Device Installation Check SheetSTK-RCS-7TWSUA STK-RCS-7TWSUA Pub. OI-85264181139000 SanyoDo not cool or heat the room too much Hot Start Heating System Timer and Present Time setting buttons SET buttonTimer Select button AutoAutomatic Operation Only for COOL/DRY/HEAT Model Remote Control Unit Display Heating Mode Only for COOL/DRY/HEAT Model910 pm 710 am 1130 pm Present time ProgrammedDaily on / OFF Sweep Cool Drysweep Heat FAN Appendix E Installation Instructions STK-RCS-7TWSUA Parts supplied with the remote controller Remote controller installation guidelinesHow to install the remote controller Installation locationInstalling with in-wall junction box Installing directly onto the wallHow to wire the remote controller ON/OFF

XMS1272, XMS0972 specifications

The Sanyo XMS0972 and XMS1272 are remarkable air conditioning units that blend efficiency with cutting-edge technology. Designed for residential and commercial spaces, these models promise comfort while optimizing energy consumption.

One of the standout features of both the XMS0972 and XMS1272 is their advanced inverter technology. This feature allows the units to adjust their cooling capacity based on the room's ambient temperature. As a result, the air conditioners can maintain a consistent temperature without the frequent on/off cycles associated with traditional units. This not only ensures a more stable climate but also significantly reduces energy consumption, making them eco-friendly options.

Another significant characteristic is the Quiet Operation mode. Both models are engineered with noise reduction technology, providing a tranquil environment for users. This is particularly beneficial for bedrooms, offices, or libraries where noise levels can be a concern. The XMS models operate at a whisper-quiet level, allowing users to focus on their tasks or enjoy a peaceful night's sleep without disruption.

The Sanyo XMS0972 and XMS1272 also feature a user-friendly digital interface. With an intuitive remote control and an easy-to-read display, setting your desired temperature or switching modes has never been easier. Moreover, the smart diagnostic capability allows for quick troubleshooting, helping to identify any issues to ensure peak performance throughout their lifespan.

Both models are equipped with a 24-hour timer, adding convenience for users who wish to come home to a pre-cooled or heated environment. This feature enhances comfort and saves energy when the unit is not in use.

In terms of design, the Sanyo XMS units boast a sleek and modern aesthetic that seamlessly integrates into various interior styles. Their compact size allows for flexible installation options, making them suitable for various living and working spaces.

The XMS line also emphasizes air purification, incorporating advanced filters that capture dust, allergens, and other pollutants. This results in not just temperature control but also improved air quality, contributing to a healthier living environment.

In conclusion, the Sanyo XMS0972 and XMS1272 air conditioning units stand out for their energy efficiency, quiet operation, user-friendly features, and air purification capabilities. These characteristics make them an ideal choice for individuals and businesses looking for reliable and sophisticated climate control solutions.