Altech ATE-053DCIMX05, Technical & Service Manual

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Indoor unit display LED STATUS
P0 Inverter module protection
Indoor unit display LED STATUS
P1 Outdoor voltage protection
Is the power supply good?
Be sure the power supply is
normal when using the units
NO
YES
Replace the outdoor e-box.
Revise the power and retest.
Is voltage normal?
NO
YES
Is all connection good?
NO
Revise the power and retest.
YES
Is the wiring to compressor
right?
YES
Check the module if some
components blow out or be
failure?
YES
Repair or replace the module.
YES
Is it breakdown between P-N,
P-V, P-W, N-V,N-W or V-W of
inverter module?
YES
Replace the module.
YES
Check the compressor.
Is the indoor temperature and
evaporator sensor connector
and connection good?
Repair the connector and
reconnect
Replace the sensor and
check if E6 display again?
NO
YES
Replace the.indoor PCB
YES