Question about Carrier 38CKC042 Air Conditioner

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Blinking indicate at indoor unit

Outdoor unit run ok,indoor run ok,but after temperature reach,comp off and when it was start again the unit will off and light will blinking 2 times

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  • Perry Putnam
    Perry Putnam May 11, 2010

    Welcome to Fixya. On the inside of the cover is a list of the fault codes and what they mean. Tell us what it says and we can probably help.

  • Anonymous Mar 16, 2014

    the indoor unit not running and the alarm mode are blink continuesly

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  • 236 Answers

Reset your unit by disconnecting the power supply for 10sec. and "on " the unit for testing. if error persist you need to replace your thermistor.

Posted on Jan 26, 2009

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Posted on Jan 02, 2017

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1 Answer

Changed batteries and now cannot get an outdoor reading.how do I fix this?


  • Remove all batteries
  • Install batteries in outdoor unit
  • Make your way indoors at a leisurely pace. This allows the outdoor unit to initialize and begin sending data
  • Install batteries in indoor unit. You should see outdoor temperature displayed
In cold weather, the outdoor temperature display may disappear due to frozen batteries. At the moment my reading is - - because it is around 40 deg. F. However, in a day or two when the outdoor temperature reaches 50 deg., the outdoor temperature will be displayed again. All in all, rather whimsical.

Jan 22, 2017 | Measuring Tools & Sensors

1 Answer

Is the heat pump cooling itself down? It is a combination heat pump/air conditioner wall unit.


If a unit is in heating mode the outdoor unit is in cooling mode (outside always does opposite of indoor) after a while if there is a build up of ice on outdoor coil unit stops and puts hot gas through outdoor coil to clear it. The indoor fan stops to avoid and heat loss in area served buy unit once this has been done and indoor unit coil is hot again fan will start. This is the correct operation of the unit to save against bust could and reduced efficiency

Dec 31, 2015 | Heating & Cooling

2 Answers

Goodman minisplit flashes on pre. Def. Wont start


You have to try resetting the system. First turn the breaker off for the condenser and wait about 20 seconds. After you turn it back on the system should reset.


Air Conditioning Repair Tamarac

Apr 07, 2015 | Goodman Heating & Cooling

1 Answer

Comfort star


Make sure the indoor filters are clean. The outside unit will continue to run until the indoor reaches the temperature you have selected. Dirty filters can throw the temperature out. Its common for outdoor units to freeze up when on heating mode if the ambient air temperature is below 5 degrees Celcius.. The machine should however, defrost itself. There could be a problem with one of the pipe or air sensors on the outdoor unit.

Feb 23, 2014 | ComfortStar CHH012CD-13B Wall Mounted Mini...

1 Answer

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

1 Answer

When i start the a/c indoor unit working and after 1 minute of the indoor unit and blinking the green and red light.


Green blinks indicate communication to outdoor, but red light indicates communication problem. Check PCB.

Oct 16, 2011 | Samsung AS18A6RB Air Conditioner

1 Answer

My aircon unit turns on runs for a minute then indoor and outdoor unit switch off


If this is a LG Airconditioning unit.
It has reached the set parmeter of the safety switch point.
1 The unit could be running on too low refrigerant charge and cuts out on low temperature on the indoor unit coil (-5°C longer that 30sec switch off)
2 The unit might be drawing to much current, to much refrigerant, cutting out on high pressure.

Check the refrigerant charge and check the indoor pipe temperature thermister (calibrated at 5kΩ @ 25°C)

Mar 18, 2010 | LG Heating & Cooling

2 Answers

Air con indoor unit is flashing 6 times out door is off


Please specify the make and model of your unit.
If this is a LG inverter model.
The six flashes of the indoor unit light indicates a CH 06 alarm.
This alarm state indicates that the indoor unit pipe temperature sensor has measured a temperature out of range or the unit is protecting itself from this low temp state. Indoor unit coil temperature to low. Should it have reached a temperature of -5°C for longer that 30sec it will switch the machine off.

It could indicate that the unit refrigerant charge is too low or the sensor has gone out of calibration.

It should measure 5kΩ @ 25°C

Mar 16, 2010 | LG Heating & Cooling

1 Answer

Lg split indoor fan runs non stop


Hello Hamid,
The unit is designed to run the indoor fanmotors continuously when in cooling mode on both indoor units (evaporators). The reason is that this circulates the air and the temperature thermistor or sensor is able to sense return air temperature and in turn start or stop the outdoor unit and compressor as required according to the setpoint temperature. The reason for either unit not reaching setpoint temperature can be a couple of reasons. A) Incorrect design - the unit may be too small for the application. You can calculate this roughly at 650BTU per square meter of room in a relatively warm ambient climate. Or secondly B) The outdoor unit has leaked and is short of refrigerant. You can check this when the outdoor unit is running by feeling the thicker copper tube on the right hand side of the unit. This should be cool to cold. If no temperature difference is felt, it is short of refrigerant. Hope this helps you. Goodbye

Aug 11, 2008 | LG LS-L1210CL Mini Split Air Conditioner

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