Outdoor Unit Errors - Samsung AE090JXYDEH Service Manual

4-2 OUTDOOR UNIT errors

Error
Contents
No.
E201 Hydro Unit quantity is mismatched.
Communication error between
E203 Indoor/outdoor INV ↔ MAIN MICOM
(1 min)
Outdoor temperature sensor
E221
error
E231 Cond temp sensor error
[Inverter] Emission temperature
E251
sensor error
E320 OLP sensor error
Detection of Outdoor Freezing when
E403
Comp Stop
Protection of Outdoor Overload when
E404
Comp Stop
E407 HIGH PRESS SWITCH ERROR
Discharge over temp error when Comp
E416
Stop
E419 Outdoor EEV open error
E425 3Phase power source miss wiring error
E439 Gas leakage error(Stop state)
E440 Heating operation blocked
E441 Cooling operation blocked
E443 Gas leakage error(before operating)
E458 Outdoor fan 1 error
[Inverter] Compressor startup
E461
error
[Inverter] Total current error/
E462
PFC over current error
E463 OLP over heat and comp stop
[Inverter] IPM over current
E464
error
44
Measure
Hydro Unit quantity must be matched with outdoor unit
1 by 1. Check the Hydro Unit quantity. It must be 1EA.
Check MAIN MICOM
Check INVERTER MICOM
Check sensor connection status
Check sensor location
Check sensor resistance
Check sensor connection status
Check sensor location
Check sensor resistance
Check sensor connection status
Check sensor location
Check sensor resistance
Check sensor connection status
Check sensor location
Check sensor resistance
Check outdoor cond.
Check comp.
Check refrigerant pipe line blockage
Check high pressure sensor
Check refrigerant amount
Check the operation setting state
Check temperature sensor
Check the EEV of Outdoor
Check the EEV connector to the PCB
Check the 3-phase inspection part power of the outdoor unit
PCB.
Check Refrigerant leakage and shortage
Check Disconnection or breakdown of high & low pressure
sensor
Check the operation setting state
Check temperature sensor
Check the operation setting state
Check temperature sensor
Check Refrigerant leakage and shortage
Check Disconnection or breakdown of high pressure sensor
Check input power connection status
Check the connection status between the motor and
outdoor unit PCB
Check indoor/outdoor fuse
Check the compressor connection status
Check the resistance between difference phases of the
compressor
Check the input power
Check the coolant charging status
Check the normal operation of outdoor fan
Check OLP sensor
Check coolant charging
Check the compressor connection status and normal
operation
Check the obstacles around the indoor and outdoor units
Check whether the outdoor unit service valve is open
Check whether the indoor/outdoor installation pipe/
wiring are correct
LED Display
Red Green Yellow
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 Off  Blink  On
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