Question about Hitachi RAS-09UH Air Conditioner

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Hitachi ras-5h gse

2 red led staying on in the indoor unit, fan not running on the indoor unit at all, out door unit compressor just starts and knocks of,no fault on control or out door unit.?????

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  • 5 Answers

First: The compressor is deffective
second: Fan capacitor is deffective
3rd: Running capacitor is deffective

Posted on Jan 26, 2009

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

Dec 14, 2008 | Hitachi RAS-09UH Air Conditioner

1 Answer

Mitshubishi split muh-18nvand inside msh-18nv


-Start the unit.
-Press EMERGENCY OPERATION switch.3-minute time delay works.Test run operation operates for 30 minutes.
-Check voltage to terminal block of outdoor unit.Is there 12V DC between 2-1?
-If voltage is presenet check the wiring, compressor contactor outdoor fan motor and compressor.
-If no voltage check voltage to terminal block of indoor unit.Is there 12V DC between 2-1?
-If if voltage is present re-connect the continuity of indoor and outdoor unit connection.
-If no voltage replace the indoor electronic control P.C.
board.
-But also check the coil thermistor sensor and room air thermistor if this two is out of range it can cause the tripping of out door unit. It has the resistance of 8 to 10 k ohms at 25 deg c temp.
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Jan 04, 2008 | Heating & Cooling

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