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
- about this manual
- Part 1 System Outline
- Table Of Contents
- What Is in This Chapter?
- FCQ35, 50, 60, 71B
- 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
- Piping Components
- Part 1
- 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
- Part 1
- 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
- Part 2
- Simulated Operation Function
- functions of thermistors
- forced operating mode (emergency operation)
- outdoor unit identification function
- simulated operation function
- restart standby
- automatic restart
- using conditions for remote control thermostat
- forced thermostat off
- freeze prevention function
- pmv control
- thermostat control
- drain pump control
- condensation avoidance control
- fan and flap operations
- indoor unit fan control
- Additional Checks for Troubleshooting
- What Is in This Chapter
- troubleshooting
- 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
- Troubleshooting by LED Indications on the Indoor Unit
- system malfunctions
- Overview of the Indoor Safety Devices
- Malfunction of Transmission between Indoor and Outdoor Unit (U4 or UF)
- Test Run Checks
- Part 4
- how to change the field settings with the wired remote control
- how to change the field settings with the infrared remote control
- 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
- main/sub setting when using two remote controls
- setting the centralized group no
- The Field Setting Levels
- General Operation Data
- Table Of Contents
- removal of suction grille
- removal of air filter
- removal of decoration panel
- removal of horizontal blade
- removal of swing motor
- removal of switch box
- removal of pc board
- removal of humidity sensor and air temperature thermistor
- removal of fan motor
- removal of drain pan, drain pump, float switch
- removal of heat exchanger temperature thermistor
- 1.12 FFQ25, 50, 60B
- Table Of Contents
- removal of horizontal vane
- removal of fan rotor and fan motor
- removal of drain pan
- removal of drain pump
- installation of drain pump
- replacement of heat exchanger thermistor
- replacement of heat exchanger
- replacement of pc board
- replacement of receiver section of infrared remote control
- removal of air filter and suction grille
- 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 heat exchanger
- removal of electrical parts box
- removal of swing louvre unit
- removal of fan rotor
- Table Of Contents
- Table Of Contents
- Table Of Contents
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ESIEN05-04 TroubleshootingPart 3 – Troubleshooting 3–5334511.3 Overview of General ProblemsOverviewEquipment Condition Remedy1 Equipment does not operate. See page 3-62 Fan operates, but compressor does not. See page 3-83 Cooling/heating operation starts but stopsimmediately.See page 3-104 Equipment operates but does not provideheating.See page 3-127 Equipment discharges white mist. See page 3-148 Equipment produces loud noise or shakes. See page 3-159 Equipment discharges dust. See page 3-1610 remote control LCD displays “88.” See page 3-1711 Indoor swing flap does not operate. See page 3-1812 Equipment emits odor. Room smell and cigarette odors accumu-lated inside the indoor unit are dischargedwith air. Inside of the indoor unit must becleaned.13 Flap operates when power is turned on. It is normal. The flap initializes for accuratepositioning.14 Change of operation mode causes flap tomove.It is normal. There is a control function thatmoves the flap when operation mode ischanged.15 Fan operates in “M” mode during heatingeven if remote control is set to “Low.”It is normal. It is caused by the activation ofthe overload control (airflow shift control).16 Flap automatically moves during cooling. It is normal. It is caused by the activation ofthe dew prevention function or ceiling soil-ing prevention function.17 Indoor unit fan operates in “L” mode for 1minute in microcomputer-controlled drymode even if compressor is not operating.It is normal. The monitoring function forci-bly operates the fan for one minute.18 In simultaneous ON/OFF multi-systemsetup, indoor unit (sub) does not operate insync with the other indoor unit (main).(Flat, fan, etc.)It is normal. It is caused by a signal trans-mission lag.19 Indoor unit fan operates after heating oper-ation stops.It is normal. The fan operates in the “LL”mode for 60 to 100 seconds to dissipatethe residual heat in the heater.20 Drain pump operates when equipment isnot operating.It is normal. The drain pump continues tooperate for several minutes after equip-ment is turned off.21 Horizontal swing sends air to differentdirections in cooling and heating even if itis set to the same position.It is normal. The airflow direction in cool-ing/dry operation is different from that inheating/fan operation.22 Flap remains horizontal even if it is set toSwing.It is normal. The flap does not swing in thethermostat OFF mode.
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