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        Air conditioning - Any recommendations please?? - Part 2

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        Old 19-05-2020, 11:26 AM   #4531
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        Mine is the old hdb without the Aircon ledge. There is no breaker near the compressor.
        Oh... Then, it's hard to troubleshoot.
        If all 3 FCU have no power, it's very likely that there is no power to the outdoor unit[compressor].
        A few years back, I encountered same issue. No power at my all 3 FCU.
        My aircon installer used very small wire[same as those to FCU] for compressor and the wire burnt out/broken.
        I ended up replacing them with 2 bigger ones.
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        Old 19-05-2020, 11:49 AM   #4532
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        Oh... Then, it's hard to troubleshoot.
        If all 3 FCU have no power, it's very likely that there is no power to the outdoor unit[compressor].
        A few years back, I encountered same issue. No power at my all 3 FCU.
        My aircon installer used very small wire[same as those to FCU] for compressor and the wire burnt out/broken.
        I ended up replacing them with 2 bigger ones.
        Thanks. So any Aircon serviceman to recommend me or should I call mitsubishi to repair?
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        Old 19-05-2020, 01:40 PM   #4533
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        Hi, i am a senior citizen and would like to ask for everyone kind advise here. Currently my 4rm have only 1 single split installed in the master bedroom. My 2 other rooms don't have aircon because my 2 children don't like to use aircon. But because of the circuit breaker, they work from home now but in the afternoon it get quite hot because of direct afternoon sun. Because this Covic 19 my company closed and I lost my job so on tight budget. I am think to install a window aircon at the small square window lourve on the wall but the aircon shop owner say hdb not approved. Can anyone advise if the window unit be installed on top of the sliding window? Thanks

        Last edited by macdonalds109; 19-05-2020 at 01:43 PM..
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        Old 19-05-2020, 04:22 PM   #4534
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        Hi all,

        Aircon split type 3 system.

        Symptom as follow.

        Two problem units not responding to remote and to physical button press.

        Work around is to turn off the breaker for around 15min and turn on breaker again. They will response and work OK.
        If 3 to 4 days no turn them on. They will be "dead" again.

        Have been using this work around to keep them going, untill this week where they completely don't response. Seem really spoil.

        Anyone has the same issue previously and got it repaired? Get recommend the service person?

        Is it indoor unit PCB board uplorry?

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        Old 19-05-2020, 09:23 PM   #4535
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        Thanks. So any Aircon serviceman to recommend me or should I call mitsubishi to repair?
        Any aircon vendor can do it
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        Old 19-05-2020, 09:23 PM   #4536
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        Hi, i am a senior citizen and would like to ask for everyone kind advise here. Currently my 4rm have only 1 single split installed in the master bedroom. My 2 other rooms don't have aircon because my 2 children don't like to use aircon. But because of the circuit breaker, they work from home now but in the afternoon it get quite hot because of direct afternoon sun. Because this Covic 19 my company closed and I lost my job so on tight budget. I am think to install a window aircon at the small square window lourve on the wall but the aircon shop owner say hdb not approved. Can anyone advise if the window unit be installed on top of the sliding window? Thanks
        I doubt you can install on top of the sliding window. It poses a safety hazard without the proper bracket.

        Probably just get a 2nd hand aircon from carousell? They can supply and install.

        Alternatively and worst case scenario, just buy a portable aircon.
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        Old 19-05-2020, 09:26 PM   #4537
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        Thanks. So any Aircon serviceman to recommend me or should I call mitsubishi to repair?
        I suggest you engage a local and experience technician. Someone who dares to troubleshoot to components level.

        Don't engage from aircon contractors. These technicians don't deal with components level.

        They will probably suggest to buy a new one.
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        Old 20-05-2020, 11:45 AM   #4538
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        Hi all,

        Aircon split type 3 system.

        Symptom as follow.

        Two problem units not responding to remote and to physical button press.

        Work around is to turn off the breaker for around 15min and turn on breaker again. They will response and work OK.
        If 3 to 4 days no turn them on. They will be "dead" again.

        Have been using this work around to keep them going, untill this week where they completely don't response. Seem really spoil.

        Anyone has the same issue previously and got it repaired? Get recommend the service person?

        Is it indoor unit PCB board uplorry?

        Sent from Xiaomi POCOPHONE F1 using GAGT
        I have a similar issue with my system 2 just last week.

        Suggest you open up the electrical panel to see if there is blue wire burned inside.
        The aircon circuit breaker will not trip when the blue or neutral wire is burned due to some abnormality of the aircon so reset it make no difference

        I open up the electrical panel and found the aircon blue wire burned, remove the burn part and put back into the original terminal.
        Turn on aircon circuit breaker and the system works and running for the past week.
        I also open up the electrical box of outdoor unit and 2 FCU and find all the cables in good condition.

        No idea what is the real cause though
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        Old 20-05-2020, 11:52 AM   #4539
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        I check the circuit breaker in the living room. There is no trip. There was also no cut in power supply for the other appliances
        Suggest you open the electrical panel to check if neutral wire of aircon burned.
        If burned, do cut burned part and strip a portion of the wire and insert back to terminal, then turn on circuit breaker to see if it works.

        Also check the main switch of the aircon system to see if neutral wire is burned.
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        Old 20-05-2020, 04:55 PM   #4540
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        I have a similar issue with my system 2 just last week.

        Suggest you open up the electrical panel to see if there is blue wire burned inside.
        The aircon circuit breaker will not trip when the blue or neutral wire is burned due to some abnormality of the aircon so reset it make no difference

        I open up the electrical panel and found the aircon blue wire burned, remove the burn part and put back into the original terminal.
        Turn on aircon circuit breaker and the system works and running for the past week.
        I also open up the electrical box of outdoor unit and 2 FCU and find all the cables in good condition.

        No idea what is the real cause though
        Electrical panel of indoor aircon unit?

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        Old 20-05-2020, 06:12 PM   #4541
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        guys, recently my MBR aircon unit got this noise whenever i turn it on.

        sounds like a storm is coming from the unit lol

        can u pls listen to it and see what is going on ?

        Thanks in advance

        https://soundcloud.com/stupidog-sg/a.../s-Jd7S7mjK0zZ
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        Old 20-05-2020, 06:25 PM   #4542
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        Replacing my Aircon

        Hi,


        I wish to replace my closed to 20 years Starmex system 4.



        1) Which aircon model is recommended now? Still Starmex from Mitsubishi Heavy Industry?

        2) Where shall I go for purchase and install?
        3) I should also change the pipes?
        4) If I wish to change the location of 1 outlet, they will need to raise request for HDB for approval? And how much will it cost?



        Regards.
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        Old 20-05-2020, 07:13 PM   #4543
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        Starmex is different from MHI.
        You should replace everything.
        I used a private contractor, but Gain City has been mentioned a few times, so that's a good place to begin for a HDB solution.
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        Old 20-05-2020, 07:44 PM   #4544
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        Electrical panel of indoor aircon unit?

        Sent from Xiaomi POCOPHONE F1 using GAGT
        Your home electrical panel where all the power circuit breakers is

        There is a circuit breaker label as AC for aircon and a blue wire label for AC
        inside the home electrical panel.
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        Old 20-05-2020, 08:35 PM   #4545
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        Suggest you open the electrical panel to check if neutral wire of aircon burned.
        If burned, do cut burned part and strip a portion of the wire and insert back to terminal, then turn on circuit breaker to see if it works.

        Also check the main switch of the aircon system to see if neutral wire is burned.
        Hi, may I know the location of this electrical panel that you are refering to?
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