Hitachi RAS-09UH Air Conditioner - Answered Questions & Fixed issues

Check the breaker in the panel and the fuses in the disconnect at the outside unit. If that doesn't do it. call a heating and air technician instead of an electrician.

Hitachi RAS-09UH... | Answered on Nov 19, 2018 | 1,311 views

abhay .hi their is a problem in my remote

Hitachi RAS-09UH... | Answered on Oct 11, 2016 | 4,127 views

service and checked the gas you see ice is coming or not on cooling coil

Hitachi RAS-09UH... | Answered on Mar 15, 2016 | 324 views

water is coming from evaporator drain pan most likely. lots of humidity right now and 1st thing your ac is going to do is remove this from air. most likely cause would be condensation line clogged or if you have condensate pump, then it also could be cause. to remove cover usually you have to remove air filters look for any screws and possibly front louvers pull down. this usually does not give you access to drain pan. unit usually needs to be removed from wall plate and this might involve refrigerant lines being removed, and for that my friend you defiantly want a qualified professional.

Hitachi RAS-09UH... | Answered on Sep 28, 2015 | 302 views

you didn`t told if it is already installed or just going to the way,it has no breaker in it even on outdor unit,the only components that switching in it`s power are relays controled by electronic ckt the.installers of it,they just attaching the hot wire from your DB`s to the a/c switch(20 ampers,35 amperes) and going down to indoor units.your main distribution box has its own load schedule for it`s breaker attached in it.and not in your split type unit.the way of tracing it is look for the label opposite side of DB`s cover and it shows you where of those breakers are loaded by your a/c.

Hitachi RAS-09UH... | Answered on Apr 23, 2014 | 77 views

what do you mean

Hitachi RAS-09UH... | Answered on Jan 20, 2014 | 79 views

clean the condenser coil (outdoor).

Hitachi RAS-09UH... | Answered on Dec 14, 2013 | 64 views

push on off button on your unit

Hitachi RAS-09UH... | Answered on May 01, 2013 | 102 views

maybe the red light indicates on power supply

Hitachi RAS-09UH... | Answered on May 01, 2013 | 564 views

When its turn off, not unplugged, press at the same time ''Function Button" and the ''AUTO Swing" button on your Remote Controller.

Hitachi RAS-09UH... | Answered on Apr 23, 2019 | 5,784 views

Set the clock time on the remote control to start operating.

Hitachi RAS-09UH... | Answered on Jun 10, 2012 | 1,929 views

If you can access the pcb inside, check the mini glass fuse

Hitachi RAS-09UH... | Answered on May 21, 2012 | 1,050 views

find the universal remote control

Hitachi RAS-09UH... | Answered on Aug 22, 2011 | 179 views

u could do it another way without getting to the tray. Do u know where the condensate drain goes? if u do and you have a wet vac just vacuum that line and it should clear

Hitachi RAS-09UH... | Answered on Aug 17, 2011 | 279 views

Are they all on the same unit??? Seems like you have a leak and are low on freon...
The system leak will need to be fixed, the system vacuumed and recharged....
That will solve all of your problems at once!!


Hitachi RAS-09UH... | Answered on Jul 26, 2011 | 70 views

A few basic principles for air conditioner troubleshooting. For both central home air conditioner or window air conditioner, the first thing to check is whether the unit is getting proper power. If the unit uses 220 volt power be sure that the proper voltage is getting to the unit. Same for 110 volt units. A voltage meter can be used to assure that the voltage is correct.

For window air conditioning units the voltage can also be checked before and after the thermostat. If voltage is being supplied to the thermostat but not from it then the thermostat probably needs replaced. This is a fairly common problem. Another place to check is the fan motor voltage. The fan on window air conditioners runs both the indoor blower and the condenser fan. If that motor fails than the compressor may run for a short time, but will overheat and shut off. Continued operation like this will result in compressor failure. This motor can be economically replaced for larger window air conditioners, but for smaller ones the cost of replacement will be more than a new unit.

Central air conditioners for the home are more complex and there are more things that can go wrong. As with the window air conditioner the thermostat can also be a problem. The central air conditioner thermostat will only have 24 volts going to it. So don't look for high voltage there. Some units the voltage will be coming from the outdoor unit and others the voltage will be supplied by the indoor air handler or furnace. Most home central air conditioning will be supplied by the indoor air handler or the furnace. If the air conditioner is for cooling only the unit will usually have only two wires going to the condenser unit. Make sure that you have 24 volts across those wires.

The next thing to check will be the indoor blower. If your thermostat is calling for cooling then the indoor blower should be running. If there is no air moving across the indoor cooling coil then you will soon have a big block of ice formed on the coil. This can happen for a few reasons. The indoor blower is not working, the air flow is restricted and not allowing air to move across the coil. A clogged air filter would also do this. Or the outdoor condenser unit has lost the charge of refrigerant.

Finally and worst of all is when you have a complete compressor failure. Often when this happens the compressor will "lock up" or not be able to turn when power is supplied to it. Overheating or lack of lubrication are usually the main causes of compressor failure. Overheating can be caused by the outdoor coil around the compressor getting clogged with dirt, leaves, or grass. Loss of the refrigerant charge will also cause the compressor to overheat. It is the cool return gas coming back to the compressor that helps to keep it from overheating.

As you can see there are many things that can go wrong with an air conditioner and I have not come close to exhausting the possibilities here. I have just touched on the most common problems in a very basic way.
There are some basic trouble shooting things that can be done very easily. Most problems are above out of the range of comfort for many homeowners and professional help should be consulted before any attempt is made at repairs. Remember also, that the release of refrigerant gases into the atmosphere is a federal offense in the
US. Proper care must always be taken to minimize the release of any gases. A license is also required to handle refrigerants. Make sure that the professional you call has the proper certifications to handle refrigerants properly.

Hitachi RAS-09UH... | Answered on Jun 07, 2011 | 184 views

Please check the link below for some tips :

Hitachi RAS-09UH... | Answered on May 12, 2011 | 179 views

This model was produced approx 6-8 years ago a common problem is the compressor capacitor 50uf. I must of changed 50 of them by now.

Hitachi RAS-09UH... | Answered on Feb 03, 2011 | 252 views

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