REMKO MXW 202 - Manual (Page 34)

Fault indicated on indoor unit MXW 202-522
Display Cause Required action
E0 EEPROM error
Switch off power to unit for 1 min. Contact spe-
cialist dealer
E1
Communication error between outdoor and
indoor unit
Contact specialist dealer
E2 Phase monitoring has responded Check wiring
E3 Evaporator fan motor speed too low / defective Contact specialist dealer
E4
Ambient air probe on indoor unit defective /
connection interrupted (T1)
Check connection and plug
E5
Register probe on indoor unit defective /
connection interrupted (T2)
Check connection and plug
EC
Cooling mode: no cooling output after 30 min.
Heating mode: no heating capacity after
30 min.
Contact specialist dealer
F1
Ambient air probe for outdoor unit faulty /
connection interrupted (T4)
Check connection and plug
F2
Register probe on outdoor unit defective /
connection interrupted (T3)
Check connection and plug
F3
Heat gas probe on outdoor unit faulty /
connection interrupted (T5)
Check connection and plug
F4 EEPROM error on outdoor unit
Switch off power to unit for 1 min.
Contact specialist dealer.
P0
Rotational speed monitoring on compressor
has responded (inverter module)
Check connections CN4 and CN1 on the out-
door unit PCB / Contact specialist dealer
P1 Overload switch on outdoor unit tripped (250V) Check the voltage of the power supply
P2
Excessive temperature (Klixon) compressor
has tripped
Check the refrigerant quantity / Check the
resistance of the compressor sensor (normal
0Ω)
P3
Compressor overcurrent protection
has responded
Check winding resistance of the compressor
(1Ω = U-V / U-W / V-W)
P5 Mode conflict
The indoor units operate in different operation
modes (e.g. an indoor unit in cooling mode and
another in automatic mode). Please select the
same mode!
See the operating instructions of the relevant outdoor unit for fault diagnosis and troubleshooting.
REMKO MXW
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