Haier HSU-18HEA03/R2(DB)-I User Manual

67
Domestic air conditioner
HSU-18HEA03/R2(DB)-I
Service Diagnosis
NO
NO
7.3.8 The EEPROM Abnormality ( outdoor unit)
outdoor display LED1 flash 1 times
Method of
Malfunction
the Data detected by the EEPROM are used to determine MCU
Detection
Malfunction
when the Data of EEPROM is error or the EEPROM is damaged
Decision
Conditions
Supposed
Ƶ Faulty EEPROM data
Causes Ƶ Faulty EEPROM
Ƶ Faulty PCB
Troubleshooting
* Caution Be sure to turn off power switch before connect or disconnect connector, or
parts damage may be occurred.
Pull out the exhaust sensor and measure its
resistance at standard temperatures
according to the resistance-temperature table
YES
The sensor is damaged. Replace the sensor
with a new one.
the results deviate
much?
YES
The sensor is damaged. Replace the sensor
with a new one.
The outdoor mainboard is damaged and
needs be replaced
The outdoor mainboard is damaged and
needs be replaced

Haier HSU-18HEA03/R2(DB)-I Specifications

General

Brand	Haier
Model	HSU-18HEA03/R2(DB)-I
Category	Air Conditioner
Language	English