Alignment And Adjustments; Test Mode - Samsung AQ09NSA Service Manual

3. Alignment and Adjustments

3-1 Test Mode

 How to Approach Test Mode
You can approach the Test Mode by pressing the on/off switch of
indoor unit for 5 seconds.
 Test Mode Operation Option
After installing the air conditioner, check whether each subordinate is normally operated or not by operating the Test Mode.
• Temperature Display Part : Display the set option at one-second intervals. (Only for models having the temperature display part)
• When an error occurs, display the Error Mode.
LED Display
OPERATION
Waiting Operation
Blink all lamps
Samsung Electronics
→
ex) 0b0000-1730F8 : 0b 00
LAMP
TIMER TURBO
Indoor heat exchanger
temperature sensor error
Indoor fan motor speed
(Occur when it continues
for 15 seconds at below
* Display only for models
having the returning
function for the power fail-
When there is an option
When options are not set
When there is an option
→ → → → →
00 17 30 F8 0b ...(Repeat)
Cause
• Check assembling status of the sensor part's
connector on the indoor unit main PCB
Indoor temperature
sensor error • Measure the resistance value on both sides –
(OPEN / SHORT) connector no. 1 and no. 2 (E1), no. 3 and no. 4
(E2) – by separating the sensor part's connector
Temp.
(OPEN / SHORT)
* If not meet the above DATA, replace sensors.
detecting error
• Check assembling status of the Motor Hall IC
output connector (CN44) on the indoor unit
main PCB
450rpm)
EEPROM error
(Option memory)
• Reset options
• Replace the PCB
ure
related error
• Reset options
data error
on/off switch
Follow-up Measures
Resistance Temp. Resistance
(°C) Value(KΩ) (°C) Value(KΩ)
15 14.68 30 8.31
20 12.09 35 6.94
25 10.00 40 5.83
Others
The error of
DATA is
±2%.
3-1