Hi

I have a Mitsubishi Mr Slim P125VHA21 outdoor unit with an E6 code.
With Mitsubishi technical help I found the Rush resistor blown on the Noise Filter board.
I managed to change the 22 ohm resistor but it blew again when connected.
So I looked at the Power board and this had a short on the input. (Should have checked that first!).
Mitsubishi recommend changing the power board and as a precaution the Active Filter Module.


Before I spend £500 on the 2 boards I would like to know if others have had this before and is any thing else that’s worth checking?

The units only 4 years old but looks like its had a new compressor at some stage. It’s at a shop which has been empty for a year so anything else to check before switch on.

I’m an Aircraft Electrician with British Midland by trade and only delved into Air Con recently so grateful of any advice.

Cheers

Simon