Samsung SH09AI8V Dokumentacja Pobierz pdf (Strona 21)

Samsung Electronics20

6-3 Breakdown diagnosis by symptoms

6-3-1 Indoor unit temperature sensor failure

Indoor unit temperature sensor open or short

Error mark

Error Part

7-SEGMENT

E1

Yes

No

No

No

Yes

Yes

Detach the assembly sensor from the ASS'Y PCB

CN43 connector and measure the sensor resistance

with an ohmmeter (tester).

Is the sensor resistance value 10KΩ ±1,2KΩ at the

room temperature of 25˚C?

ASS'Y Sensor Replace

SENSOR Resistance Value : 20˚C-12.09kΩ

SENSOR Resistance Value : 30˚C-8.31kΩ

SENSOR Resistance Value : 35˚C-6.94kΩ

SENSOR Resistance Value : 40˚C-5.83kΩ

Poor ASS'Y PCB Replace

Poor ASS'Y PCB Replace

Connect the sensor to CN43, supply power, and measure

the voltage of #1 and #2 of the CN43 connector.

Below 1.3V?

Over 3.7V?

MICOM Error, MICOM Replace

DB98-17813(1)_1 04/2/23 10:31 AM Page 20

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