Contents - service manual
- Table Of Contents
- Table Of Contents
- Table Of Contents
- Table Of Contents
- Table Of Contents
- Table Of Contents
- Table Of Contents
- Table Of Contents
- What Is in This Chapter?
- FCQ71D
- FCQ100, 125, 140D
- FFQ25, 35, 50, 60B
- FBQ35, 50B
- FBQ60, 71B
- FBQ100, 125B
- FHQ35, 50B
- FHQ60, 71B
- FHQ100B
- FHQ125B
- FUQ71B
- FUQ100, 125B
- FAQ71B
- FAQ100B
- FDEQ71, 100B
- FDEQ125B
- specifications
- technical specifications
- Indoor Piping
- Pipe Connection Diameters
- FCQ35, 50, 60B
- FCQ71, 100, 125B
- FCQ71, 100, 125, 140D
- FBQ35, 50, 60B
- FBQ71B
- FDQ125, 200, 250B
- FHQ35, 50, 60B
- FHQ71, 100, 125B
- FUQ71, 100, 125B
- FDEQ71B
- FDEQ100B
- FCQ35, 50, 60, 71B
- FCQ100, 125B
- FCQ71, 100, 125 140D
- FBQ35, 50, 60, 71, 100, 125B
- FHQ35, 50, 60, 71, 100, 125B
- FDEQ71, 100, 125B
- FBQ35, 50, 60, 71B & FDEQ71B
- FBQ100, 125B & FDEQ100, 125B
- Simulated Operation Function
- functions of thermistors
- outdoor unit identification function
- restart standby
- automatic restart
- forced thermostat off
- freeze prevention function
- pmv control
- thermostat control
- drain pump control
- Condensation Avoidance Control
- Draft Avoidance Control 1
- Fan and Flap Operations
- Indoor Unit Fan Control
- Additional Checks for Troubleshooting
- What Is in This Chapter
- General Troubleshooting Flowchart
- Overview of General Problems
- equipment does not operate
- equipment operates but does not provide heating
- equipment discharges white mist
- equipment produces loud noise or shakes
- equipment discharges dust
- swing flap does not operate
- Procedure of Self-Diagnosis by Remote Controller
- Fault-diagnosis by Wired Remote Controller
- Troubleshooting by LED Indications on the Indoor Unit
- Troubleshooting by Remote Controller Display / LED Display
- system malfunctions
- Overview of the Indoor Safety Devices
- Malfunctioning Indoor PCB ..............................................................(A1)
- Malfunction of Drain Water Level System ........................................(A3)
- Malfunctioning Drain System .......................................................... (AF)
- Thermistor Abnormality ...................................................... (C4, C5, C9)
- Malfunctioning Remote Controller Air Thermistor ............................ (CJ)
- Malfunctioning of Moisture Sensor System..................................... (CC)
- Malfunction of Transmission between Indoor and Outdoor Unit (U4 or UF)
- Malfunction of Transmission between Indoor Unit and Remote Controller (U5)
- Malfunction of Transmission between MAIN Remote Controller and SUB Remote Controller (U8)
- Malfunctioning Field Setting Switch ................................................ (UA)
- Centralized Address Setting Error ..................................................(UC)
- Indoor Unit: Checking the Power Supply Wave Form
- Test Run Checks
- Setting the Wireless Remote Controller
- How to Change the Field Settings with the Wired Remote Controller
- Overview of the Field Settings on the Indoor Units
- Overview of the Factory Settings on the Indoor Units
- Setting the Ceiling Height
- Setting the Filter Counter
- setting the centralized group no
- The Field Setting Levels
- 3 Test Run and Operation Data
- General Operation Data
- removal of humidity sensor and air temperature thermistor
- removal of heat exchanger temperature thermistor
- removal of horizontal vane
- installation of drain pump
- replacement of heat exchanger thermistor
- replacement of heat exchanger
- replacement of pc board
- removal of electrical parts and pc boards
- removal of fan bearing
- removal of bottom panel and drain pan
- removal of fan
- removal of air flow control blade
- removal of front grille
- removal of electrical box
- removal of electrical parts box
- removal of swing louvre unit
- removal of fan rotor
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ESIE05-04 TroubleshootingPart 3 – Troubleshooting 3–15334511.3.8 Equipment produces loud noise or shakesApplicable Model All models of SkyAir seriesError DetectionMethodError GeneratingConditionPossible Cause Q Excess charge of refrigerantQ Air intrudes into refrigerant systemQ Flushing noise due to refrigerant shortage. (Sound of shoo...)TroubleshootingCaution Be sure to turn off power switch before connect or disconnect connector, or parts damage may beoccurred.Correction of installationReinforcement for ceilings orwallsInsert shock absorber inmounting section, orstrengthen the mountingsection.Normal. The sound is flushingnoise of gas (refrigerant)inside air conditioning unitInsert cushion materials to thepipe support such as saddle.Normal. The noise is a soundgenerated at the time of gas(refrigerant) flow change orstopDisassemble and removeparts contact.Normal. Operation sound ofdraining deviceCorrect piping manually orattach a dead weight to pipeNormal. Creak generates byshrinkage of resin parts due totemperature change.Normal.After vacuum drying, chargecorrect amount of refrigerant.∗ Excess charge of refrigerant∗ Air intrudes into refrigerantsystem∗ Flushing noise due torefrigerant shortage. (Soundof shoo...)NOYESYESYESYESYESDoesthe noise generatewith vibration of wholeceilings andwalls?YESNONONODoesthe noise generatewith vibration of unitmounting section?Continuousslight noise of "shoo..."during cooling ordefrostingYES[Power supply side]Is the piping secured?Sound of"shoo..." generatesjust after operation start orstop, or defrostingstart or stop.NONODoes thefan contact with otherparts? Sound of"shoo..." generatesduring cooling or afteroperationstop.NONODoes thepipe contact withcasing?Creak duringheatingand after operationstopYESNOYESYESNOIsthe noiseflushing sound frompressure reducing valveor capillarytube?YES[Installation work side](S1997)
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