Question about Hitachi RAS-09UH Air Conditioner

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Wont work just installed hitachi split and self diagnostic indicator say problem with thermistor defective . how do we fix . cheeers

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Simply you just replace thermistor in order to activate your unit.

Posted on Jan 26, 2009

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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It shuts off and blinks 11


AHX18MEV
4 - 12
[8] SELF-DIAGNOSIS FUNCTION
1. Indoor unit
(AH-X18MEV, AH-X18MEV-1, AH-X24MEV, AH-X24MEV-1)
To display the self-diagnosis, hold down the AUX button for over 5 seconds on the indoor unit when the indoor unit is not operating.
• The operation lamp (red), timer lamp (orange) and Super jet lamp lighter) flash to indicate the information of malfunction.
(Display of self-diagnosis result)
The operation lamp (red) and the Super jet lamp (green) flash in synchronization with the timer lamp (orange).
(AH-XP18MV, AH-XP18MV-1, AH-XP24MV, AH-XP24MV-1)
To display the self-diagnosis, hold down the AUX button for over 5 seconds on the indoor unit when the indoor unit is not operating.
• The POWER CONSUMPTION indicator indicates the information of malfunction by showing the main category error (number) and the sub-category
error (-number) alternately in 1-second intervals.
Example: Compressor high-temperature error
Remark

3. CHART
<INDOOR UNIT> ?:1-second ON / 1-second OFF
Problem
symptom
Outdoor
unit indication
(LED1)
Indoor unit Malfunction
No.
Content of diagnosis Check point Action
Lamp Main Sub Main Sub
Normal
condition
Normal
blinking
? ? ? ? ? Timer (Orange) 0 0 Normal
Operation (Red)
Super Jet (Green)
Indoor and
outdoor
units do not
operate.
1-time ? ? ? ? ? Timer (Orange) 1 0 Outdoor unit
thermistor
short-circuit
Heat exchanger
thermistor short
circuit error
(1) Measure the resistance
of the outdoor
unit
thermistors.
(1) Replace the outdoor
unit thermistor
assembly.
? Operation (Red)
Super Jet (Green)
? ? ? ? ? Timer (Orange) 1 Outdoor temperature
thermistor
short circuit error
(2) Check the lead wire
of the outdoor unit
thermistor for torn
sheath and shortcircuit.
(2) Replace the outdoor
unit thermistor
assembly.
? Operation (Red)
? Super Jet (Green)
? ? ? ? ? Timer (Orange) 2 Suction thermistor
short circuit
error
(3) No abnormality
found in above
inspections (1) and
(2).
(3) Replace the outdoor
unit control
PWB assembly.
? Operation (Red)
? Super Jet (Green)
? ? ? ? ? Timer (Orange) 3 2-way valve
thermistor short
circuit error
? Operation (Red)
? ? Super Jet (Green)
LED1
AU-X24MV, AU-X24MEV
AU-X18MV, AU-X18MEV
LED1

May 27, 2012 | Sharp Heating & Cooling

5 Answers

ERROR CODE ON AIRCONDITIONER LG ART COOL INVERTER MODEL NUMBER LSZ244VM4


Hi,

The first thing i'll say is you will need to get it repaired by a technician and i strongly recommend you not to do it by urself.

Remote control units have diagnostic program in the
control, after 3 to 5 minutes of operating if the diagnostic
tools detect abnormal operation, then its shutdown the unit
to protect from damage. Thermistor sensor is one of the
parts that detect the operation of the unit. Out of range
or defective thermistor can shut the operation of the unit.
-
If your indoor and outdoor is clean start the unit in cool mode and monitor the outdoor pipes. If your suction pipe is icing or dry then your unit is under charge, but if your suction is cold and sweating then the system is ok and sure that the thermistor sensor is defective.
- Out of range thermistor sensor in both return air and freeze up sensor can cause the tripping “off “ the unit.

3683b64.jpg


Goodluck..

Mar 08, 2008 | LG LSC183VMA Split System Air Conditioner

3 Answers

Onida split ac show only f8 in display. how to slove the problem


Hi,
That code is usually a result of a leak in the system and the unit being low on charge...find/fix the leak and recharge the unit.
Here is a tip about troubleshooting your air conditioner...
There are many things that can cause your air conditioner not to cool...

Air ConditionerTrouble -Review the Possibilities

heatman101

Jun 21, 2011 | Heating & Cooling

3 Answers

Misubishi split a c 2 tons green light blinking problems


Please write how many times blinking and with an interval. Depends upon it, we can give solution.

Normally, blinking 5 times means for drain motor malfunctioning. Check drainline, oif blocked clean it. If drain motor not working, replace it.
If blinking 2 times, Indoor room air thermistor defective replace.

Thanks.

Feb 18, 2011 | Mitsubishi MSZ-A15NA Split System Air...

1 Answer

Oil Leak


This would indicate a leak somewhere in the condenser sheet coil. I hate to be the bearer of bad news but you should call a service tech in to fix this problem.

Aug 29, 2008 | GE Zoneline AZ38H12DAD Split System Air...

1 Answer

Fujitsu split level


Check for errors like blinking indoor light if present. Reset the error by disconnecting power supply from the unit for 10 sec. and "on" the unit. If the error persist, some parts of the unit may be defective and need to replace. Like room air thermistor, coil thermistor in the indoor side or the relay board. Some safety device in the outdoor may give in, some outdoor parts may be defective. You need a qualified technician for the this problem.

May 17, 2008 | Fujitsu 24C1 Air Conditioner

1 Answer

Air conditioner


Remote control units have diagnostic program in the
control, after 3 to 5 minutes of operating if the diagnostic
tools detect abnormal operation, then its shutdown the unit
to protect from damage. Thermistor sensor is one of the
parts that detect the operation of the unit. Out of range
or defective thermistor can shut the operation of the unit.
-
If your indoor and outdoor is clean start the unit in cool mode and monitor the outdoor pipes. If your suction pipe is icing or dry then your unit is under charge, but if your suction is cold and sweating then the system is ok and sure that the thermistor sensor is defective.
- Out of range thermistor sensor in both return air and freeze up sensor can cause the tripping “off “ the unit. The resistance of both thermistor is 8 to 10k ohms, so can test by using ohm meter


fc7c791.jpg

Jan 12, 2008 | LG LSC121PMA Split System Air Conditioner

1 Answer

Air conditioner


Remote control units have diagnostic program in the
control, after 3 to 5 minutes of operating if the diagnostic
tools detect abnormal operation, then its shutdown the unit
to protect from damage. Thermistor sensor is one of the
parts that detect the operation of the unit. Out of range
or defective thermistor can shut the operation of the unit.
- If your indoor and outdoor is clean start the unit in cool mode and monitor the outdoor pipes. If your suction pipe is icing or dry then your unit is under charge, but if your suction is cold and sweating then the system is ok and sure that the thermistor sensor is defective.
- Out of range thermistor sensor in both return air and freeze up sensor can cause the tripping “off “ the unit. The resistance of both thermistor is 8 to 10k ohms@25 deg. C temp. , so can test by using ohm meter.
- Try also to check the voltage in you area if normal, loose ac outlet.
- Be sure that unit is clean no obstruction in your air out and air in.
- Unplug the unit to reset the c6 error.

fc6dff4.jpg

Jan 10, 2008 | Heating & Cooling

2 Answers

Art cool keeps stopping


Try to unplug the unit or “off” after 10sec. “on” the circuit breaker and then start the unit.
But if the defect persist then you need a qualified technician. The below error may be the cause of unit failure.
- Out of range thermistor is also can also be the cause of tripping outdoor unit with matching blinking light same as low refrigerant.
- Dirty indoor and outdoor can also be the cause
Remote control units have diagnostic program in the
control, after 3 to 5 minutes of operating if the diagnostic
tools detect abnormal operation, then its shutdown the unit
to protect from damage. Thermistor sensor is one of the
parts that detect the operation of the unit. Out of range
or defective thermistor can shut the operation of the unit.
- If your indoor and outdoor is clean start the unit in cool mode and monitor the outdoor pipes. If your suction pipe is icing or dry then your unit is under charge, but if your suction is cold and sweating then the system is ok and sure that the thermistor sensor is defective.
- Out of range thermistor sensor in both return air and freeze up sensor can cause the tripping “off “ the unit. The resistance of both thermistor is 8 to 10k ohms, so can test by using ohm meter

cc9c51b.jpg

Dec 26, 2007 | Heating & Cooling

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