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Hitachi split air #RAS-25CHAR/RAC-25CHA

Unit will not switch on , timer light flashes 13 times, ,goes out for 5 seconds and then repeats (fault code for freeze protection thermistor ) , have tried turning unit off both at switchboard circuit breaker and at indoor unit for approx' 30 minutes , then back on again but still wont switch on. Have not used it for cooling this year as yet but has been running without fault for over 6 years , can you direct me to the location of this thermistor , and if so , is it easy to change ?

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SOURCE: Need a new remote for my Hitachi RAS-12UH Ductless Split



http://www.hitachi.com.au/productsearch.aspx?pId=62&

Posted on Jan 08, 2009

notsomot
  • 67 Answers

SOURCE: Hitachi RAS-25CHA will not work after power supply -brown outage.

Heya,
I am an ex warrenty agent for Hitachi in Western Australia and I will be able to take you through some tests if you want. But from the sounds of it I think that you will be up for a new indoor PCB as these are the most common things to go when there are power failures. If you would like me to go through it with you let me know. But first where abouts are you in Australia?

Posted on Jan 08, 2009

notsomot
  • 67 Answers

SOURCE: hitachi

I would really call your installers back mate.

If you have anything to measure air temp with I will take you though some tests.

But at this point I would say that your air con does not have any gas and the installers should come back. If they will not come back you should contact Hitachi warranty

Hope this helps

Posted on Jan 11, 2009

  • 400 Answers

SOURCE: Hitachi RAS-25CHA will not work after power supply -brown outage.

Is the unit responding to remote instruction at all? It does sound like your board is gone. This is usually a capacitor (blue or green and round flat disc) on the pc board, and possibly one of the diodes (small black cylindrical shape with a white line on one side) Often it is the compressor drive relay (rectangular black box) on pc board. If however you have managed to find a replacement board. The plastic heads holding the pc board are released by using a small long nose pliers and pinching the bit sticking through the board. The rest is simply a matter of changing one wire at a time from old board to new board. Or a good method is just to take a snapshot with a camera to refer to regarding the wire positions.

Posted on Mar 05, 2009

  • 1 Answer

SOURCE: BROKEN/MISSING HITACHI AIRCONDITIONER REMOTE CONTROL rar-2p2

abhay .hi their is a problem in my remote

Posted on Feb 08, 2010

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fujitsu is a good brand.
try one of these two things:

Turn the unit off then on again. After that press test button on remote control (rear side) and look how many times now operation and timer LED flashes. Note that. Then press MANUAL/AUTO button on indoor unit until you hear 3 beeps from buzzer. That will erase error memory.
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Is the unit responding to remote instruction at all? It does sound like your board is gone. This is usually a capacitor (blue or green and round flat disc) on the pc board, and possibly one of the diodes (small black cylindrical shape with a white line on one side) Often it is the compressor drive relay (rectangular black box) on pc board. If however you have managed to find a replacement board. The plastic heads holding the pc board are released by using a small long nose pliers and pinching the bit sticking through the board. The rest is simply a matter of changing one wire at a time from old board to new board. Or a good method is just to take a snapshot with a camera to refer to regarding the wire positions.

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I am an ex warrenty agent for Hitachi in Western Australia and I will be able to take you through some tests if you want. But from the sounds of it I think that you will be up for a new indoor PCB as these are the most common things to go when there are power failures. If you would like me to go through it with you let me know. But first where abouts are you in Australia?

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