Carrier 38LUVH055N, Руководство по обслуживанию

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9.2.3 E2(zero-crossing signal error) diagnosis and solution
9.2.4 E3(indoor fan speed out of control) diagnosis and solution
9.2.5 E5(Open or short circuit of outdoor temperature sensor) diagnosis and solution.
9.2.6 E6(open or short circuit of room or evaporator temperature sensor) diagnosis and solution.
Is the indoor fan motor
connector and
connection good?
Repair the connector and
reconnect
Is voltage being
applied to the fan
motor?
(rang 90v-160v
between mid pin and N
on CN1
YES
Indoor PCB is defective.
Replace the indoor PCB.
YES
Replace the indoor fan
motor
NO
NO
Is power supply and
connection of
connectors good?
Indoor PCB is defective.
Replace the indoor PCB.
Be sure the power supply is
good and correct the
connection
NO
YES
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
Is the outdoor temperature
sensor connector and
connection good?
Repair the connector and
reconnect
Replace the sensor
and check if E5 display
again?
NO
YES
Replace outdoor e-box
YES