Recharging R290 portable air con units

[mistake_not]

Any body done it? Our portable air con unit that is only used a handful of times has been getting progressively less effective, and on turning it on tonight it is now ineffective.

 

There seems to be inexpensive kits / gas you can buy, but interested if anybody has successfully recharged one with R290 propane.

[JohnMo]

Sounds like you need to find the leak as well.

[mistake_not]

It's slowly lost effectiveness over the last 3 years, so if I can bodge this summer I'll be happy!

[mistake_not]

Then hopefully heat pump / fan coils next year 😄