AirQ MSM-09HRN1, Руководство по обслуживанию

Страница: 14 / 22

4/8/2008R series service manual
PAGE 13 OF 20
7.3.2 Indoor room temp. sensor or evaporator temp. sensor is open circuit or short circuit
7.2.3 EEPROM error
7.2.4 Cross zero signal error
7.2.5 High temp. Protect of condenser
When outdoor pipe temp. is more than 65°C, the unit will stop, and unit runs again when outdoor pipe
temp. less than 52°C.
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
NO
YES
Indoor PCB is defective.
Replace the indoor PCB.
YES
Replace the indoor fan motor
NO
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
NO
YES
Indoor PCB is defective.
Replace the indoor PCB.
YES
Replace the indoor fan motor
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
Circuit or software error on indoor
Replace indoor PCB