Re: Hitachi 50V500A will not turn on.Power temp lamp...
It doesn't say so in the manual, and Hitachi's "tech support" are neither and don't know it, but when the lamp completely fails such as with a missing filament, the temp, lamp, and fan lights may blink in sequence from left to right. Just replace the lamp. It worked for me. Also, avoid the non-Hitachi after-market lamp / carrier assemblies. Most won't seat into the TV properly on the right side. It takes some looking, but the genuine part made by Hitachi by Panasonic can be found on Amazon.
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Thanks for using FixYa. If the clean light flashes, pauses, and then repeats. When the dishwasher doesn't sense a water temperature increase, it stops working and locks the functions (clean light flashes, all buttons are non responsive). It does this as a safety in case the element is broken and feeding electrical current into the water.
To resolve this you will have to reset the console. Do this by closing the door and press these buttons in sequence... -high temp wash -heated dry -high temp wash -heated dry
Please do rate the solution if the issue is resolved or post a comment for further assistance.
Your unit is sensing that the condenser fan is running at a lower rpm than it should. that is how you get the signal. You will need to replace the condensor motor if your coils are cleaned already. That is the only cure for your problem. I hope this helps you out.
The coils should have a nice white frost pattern evenly on the coils (no solid ice block sort of thing). If there is very little frost, or say just chunk of ice in one spot, then you may have a leak in the system where the refrigerant has leaked out.
The fan above the coils should be on when the compressor is running to circulate the cold air.
It does sound like you may have a sealed system leak and there's just not enough refrigerant to flash into a gas for proper cooling. Check on these items and get back to us.