Author Topic: Panasonic Air Con  (Read 238 times)

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Offline iwack

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  • Country: au
Panasonic Air Con
« on: September 21, 2019, 09:13:05 am »
Hello,
I have come across a Split Air Con which in heating mode interrupts operation and stops working and in cooling mode the power surges up and down.

The self-diagnosis indicates a H98 error which the Service Manual describes as: "Indoor high pressure protection", "Air circulation short circuit".

Below are photos of the power board. Anybody know which components most likely needing replacement? I'm curious to see if I can find it.

Regards,
 

Offline Psi

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  • Country: nz
Re: Panasonic Air Con
« Reply #1 on: September 21, 2019, 09:46:56 am »
I could be wrong but it sounds more like a refrigeration hardware/sensor issue than a PCB issue.
Greek letter 'Psi' (not Pounds per Square Inch)
 

Offline iwack

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  • Posts: 3
  • Country: au
Re: Panasonic Air Con
« Reply #2 on: September 21, 2019, 10:09:54 am »
I tried warming the power board with hot air blower a couple of times and the problem usually went away.
 

Offline Electro Detective

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Re: Panasonic Air Con
« Reply #3 on: September 21, 2019, 10:57:26 am »

It looks to me that some of the soldering in the lower right hand side of the uppermost/top/first photo may have a joint or three with cracks,

which may explain why the 'problem' goes away when hit with a hot air blower = the cracks expand and close up slightly just enough to make contact

Might be worth a closer looksee :-//

 


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