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Akai split system heating not working

Akai AC-KS24HRC split system. Heating does not working. External fan spinning, internal unit fan not working. If system mode changed to cooling system operates normally

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Posted on Jan 02, 2017

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SOURCE: heating problem with one split in a double split system

Either the board or capacitor have failed. If the motor is HOT the motor could also be the problem. in oder to tell if it is the board you will have to check to see if there is power coming fromthe board at the place where wires hook up. If power is there then it is either the motor or cap.

Posted on Feb 12, 2009

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SOURCE: Akai airconditioner AC-KS24HRC Changed

I had the same problem. Check the remote control section of the manual. When you change batteries the screen flashes the hot and cold icons alternating. press a utton when the hot one is on and it will activate the heat+cool mode.

Posted on Dec 08, 2009

SOURCE: Delonghi CP504AU Split Inverter AC system. When on

Hello I think it is a faulty defrost interlock or should at least bring on 1st stage electric heat during defrost mode.

Posted on Sep 14, 2010

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1 Answer

Why does my sanyo model KHS2472 has a red light blinking in heat mode and a green in cooling mode, does not work in either mode makes a gurgling sound when it tries to run?


Hi,
The red light indicates it's either heating or in defrost mode
Check the outdoor unit if the compressor is running - the large pipe on the outdoor unit should be hot on heating or cool to touch on cooling
When in heating mode - the indoor fan will not start until the indoor coil is warm enough
If the reversing valve that changes from heating to cooling is faulty then you may encounter the same symptoms too
Probably need a Refrig Tech to have a look at it?
Good luck

Jan 07, 2016 | Sanyo 24KS72 Split System Air Conditioner

3 Answers

Fan doesn't work in heat mode it works on all other functions. Heat does come out but fan doesn't kick in. Outside unit is operating


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Nov 01, 2015 | Heating & Cooling

1 Answer

I have a Bonaire split aircondition & heating system. When I use remote controll change mode doesn't work heating mode. Other mode are working properly but heating mode doesn't work.


check the ambient temperature as there is most probably a lock out feature that will not allow reverse cycle to work if the system cannot remove the cold from the evaporator
To understand the system , when in cool mode the outside unit is called the condenser and in effect removes the heat trapped by the evaporating gas in the evaporator to the atmosphere
in the heating mode the roles of the evaporator and the condenser are reversed so that the evaporation of the gas in the now evaporator out side is now compressed in the inside unit and the heat from that compression action is released into the room
read the manual for the unit or talk to an ac specialist and have it explained

Apr 18, 2015 | Heating & Cooling

2 Answers

Split AC whole unit turnig off at each compressor start up!


Dirty coil wash outside unit with water and change indoor unit filter

Jun 08, 2017 | Heating & Cooling

2 Answers

I have a Mitsubishi heat pump that runs well but the outdoor unit does not defrost what could be the problem.


Why does my heat pump ice up in Winter?
Heat pumps naturally ice-up in the winter. It is normal for the entire coil to be covered in a white frost and even light ice, during cold weather conditions. However, it is bad for the entire unit to be encased in ice. This indicates ductless heat pump problems which should be addressed quickly to save energy and avoid serious damage to your ductless unit. These systems should periodically go into a defrost cycle. This keeps the unit running efficiently. If the coils are blocked by ice, proper heat transfer between the coil and the outside air will not occur.
How does the defrost mode work?
When the mini split heat pump goes into defrost, the reversing valve inside of the outdoor unit is energized, switching the system from heat to the air conditioning mode. The outdoor coil becomes the hot, the indoor coil becomes cold, and both - the outdoor and indoor fans shut off. This allows the outdoor coil to melt accumulated ice. When the built-in micro-computer analyzes that all ice have been melted, the heat pump heating system goes back to heating mode.
sanyo-mini-split-defrost.pngA cloud of water vapor may be seen rising over the outdoor unit and a "whoosh" sound can be heard as the refrigerant reverses direction. The entire process usually takes up to 10 minutes (depending on conditions).
How often does the system goes into defrost mode?
Ductless mini-split heat pumps have different ways of determining when to go into defrost. The built-in microcomputer determines outdoor temperature, refrigerant pressures, and several other factors. In colder temperatures the system will go into defrost more often than in warmer.
If a ductless mini split heat pump is severely iced-up in the winter it is possible that it isn't defrosting (though there could be many other causes). Let the manufacturer certified technician check your system

Oct 29, 2011 | Mitsubishi Mr. Slim MXZ30TN Air...

1 Answer

Fan doesnt work on heat cool ok


Often the fan will cycle on and off on the heat mode. A cold air prevention mode is often built into modern Ac units whereby the indoor fan wont turn on until the internal system pressure is up to a certain point and heat is available to pump into the room. If the system cant come up to pressure or temperature then possibly the system is low on gas. Place your hand on the large pipe leaving the outdoor unit, it should be HOT when the system is on heating mode and running. If not Hot, then it is low on gas.

Feb 24, 2011 | Pace 18HPEWHEC Split System Air...

1 Answer

When we turn on our split AC, outside unit is not turning ON


The blinking light is because the unit is waiting for the outdoor unit to come on. If in heating mode, the indoor fan will not run before enough pressure and therefore heat has built up. You should check that the indoor air return sensor is not faulty and therefore preventing the outdoor unit from coming on.

Nov 15, 2009 | Amcor NanoMax A12000E Portable Air...

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