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Operation red light flashing on my Fujitsu heat

Operation red light flashing on my Fujitsu heat pump

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

bobotfel
  • 236 Answers

SOURCE: Fujitsu split system

I you already tried the power supply reset in the unit ("off" and "on" the supply) may be there something wrong with your thermistor, out of range thermistor can cause error display (flashing LED).Or running the unit with under charge refrigerant is also one of the cause. If the unit operates but no cool at all then that is the cause of error display. Please call a qualified technician to check your unit.

Posted on Dec 31, 2007

bobotfel
  • 236 Answers

SOURCE: flashing lights on system

Maybe the unit is on test run, try to push the test run button of remote control pointing the remote to the unit receiver.6d9792c.jpg

Posted on Jan 07, 2008

  • 1 Answer

SOURCE: Fujitsu Heat Pump - problems

I had the same problem. The heater did not work in heating mode. However it was OK in air-conditioning mode. The operation light and the timer light blink twice and then the operation light blinks for 5 times followed by few seconds non blinking, then the cycle repeats again. I have read on the internet that you better unplug the power cord and then plug it again so that the heater re-sets itself. My only problem was that my heater is directly plugged to the power with no visible plug. So I went to the main distribution board and put off the power for about 20 seconds for the whole home. HOORAY!! The heater worked after that.

Posted on Aug 08, 2008

  • 1 Answer

SOURCE: i have a Fujitsu ASTA24LCC

Check your filters. Manual says they need to be cleaned every two weeks under normal operation (and in my case more often during renovations). It seems it may not take much to limit air flow enough for the indoor unit to trip out. Hope this helps.

Posted on Aug 24, 2008

  • 81 Answers

SOURCE: fujitsu asya09lcc wallmount split lights flashing indoors

According to the service manual page 8, the unit has an 'indoor unit control error'. Below is the link to the manual. Hope this helps. http://www.oceanairdist.co.uk/assets/pdf/service/Fujitsu/ASYA09LC.pdf
Mat

Posted on Jul 16, 2009

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Fujitsu asta18lcc has a constantly fast flashing green light and the red light flashes slower 5 times with a small gap between each 5 flashes. Unit wont work at all apart from lights.


The red light (operation) flashing 5 times can be one of four things depending on the green light (timer) but the green light should flash at the same rate as the red light, not faster - either 2,3,5 or 6 times. Anything other than these is abnormal and you will need a tech to diagnose.
Could be a faulty controller board or compressor.

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if they both flash 5 times it means Compressor Failure. Not a great fault to have. could either be the inverter board or could be a stuffed compressor

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Hope you find an answer there.

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the light flashing indicates there is a problem. you can try reseting the system by turning the power supply off and back on again 30 sec later, if the same thing happens you need to count the number of light flashers and that relates to a fault code

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1 Answer

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I do warranty work for Fujitsu ACs. You need to be more specific with the "Flashing" How many flashes of both the timer, and operation light are there? These relate to problems/faults. Take note next time and post it back here.

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1 Answer

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