REMKO ML 263 DC - Manual (Page 49)

Fault EC: No cooling performance or heating performance after 30 minutes
Switch the unit off for 5 seconds. Is the fault still
shown on the display?
YES
Is the indoor unit blowing out cold air or warm
air?
YES Check the probe on the evaporator (T2). Is this
correctly seated?
NO YES
Check all pipe connections for leak-tightness. Is
there a deficit of refrigerant?
Replace the indoor unit circuit board.
YES Rectify the leak and fill with new refrigerant.
NO
Are the pipelines kinked or perhaps contami-
nated?
YES
Replace the pipelines.
Fault P0: Inverter module fault
Check the electrical wiring between the circuit
board and the compressor. Is this correctly
implemented?
NO
Replace the connections.
YES
Check whether the IPM module is correctly
installed.
NO Correct the installation and retighten all
screwed connections.
YES
Does the condenser fan run properly?
NO Check the connection of the condenser fan
motor or replace it if necessary.
YES
Replace the outdoor unit motherboard. Is the
fault still present?
YES
Replace the compressor.
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