Daikin RY24PEV1K Service Manual
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Contents
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SiGR401004_AMAINTENANCE 881. Remote controller display malfunction andcontentsMalfunctionCode Trouble Case Origin of TroubleSignal MeasureE1 Actuation of Highpressure switchHigh pressureswitchAbnormality is detected when the contact ofthe high pressure switch opens for 3 sec. Thesystem will be shut down. Only On/Off button isacceptable. But the other buttons are notacceptable. This fault cannot be recoveredautomatically.E2 Indoor anti-freezingProtectionEvaporatortemperaturethermistor ofindoor unitWhen defrosting operation and dehumidifyingoperation have been performed a period oftime, in the case of detecting the evaporatortemperature less than -2°C by the evaporatortemperature thermistor, the compressor andoutdoor unit fan will stop. In the case of theevaporator temperature 10°C or more, thealarm displays malfunction code on the screenand the compressor will be stopped for 3 minsand then the system will operate.E3 Actuation of lowpressure switchLow pressureswitchWhen the unit is running or standby (thecompressor has been operated for more than3mins), the low pressure switch opens for morethan 30sec and the screen will displaymalfunction code.E4 Abnormal dischargetemperatureDischargetemperaturethermistorAfter the startup of compressor, the dischargetemperature is higher than 130°C for more than30sec, malfunction code (E4) will be displayedon the screen and the system will be shutdown. After stopping the compressor for 3mins, if the discharge temperature thermistordetects that the discharge temperature is lowerthan 90°C for more than 5 sec, the compressorwill re-start. The malfunction will be determinedaccording to the retry 3 times. The malfunctionwill be not cancelled automatically.E5 Compressor overheat CompressorAfter the startup of the compressor, if theoverload switch opens for more than 3 sec, themalfunction of the overheat for the compressorwill be displayed on the screen. After thecompressor has been stopped for 3 mins, if themalfunction has been recovered, thecompressor will re-start. When overheatactivates 3 times within 30mins, themalfunction of overheat will be determinedaccording to the retry 3 times. The reset for themalfunction of overheat is manual reset.Therefore, the malfunction of overheat cannotbe recovered automatically. Buzzer will sound.Press On/Off button to recover. |
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