Looking on google i seems you have a small 25L portable compressor. the large plug on the end of the cylinder leave well alone unless its empty. there is a plug underneath the cylinder with a knurled spigot. I suggest cracking it open a little and let the air purge out.

I have a much larger compressor and frequently vent the air from the tank to let the build up of any condensation out. i have had this unit for years and also had it stripped down with no problems. so i would say you will be safe to crack it open a little.

Is it a yellow power craft one with twin air oulets

Is it a yellow power craft one with twin air oulets
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No it's not

Spoke to a mate who's a mechanic about the compressor, he's said the same as what's been said on this thread. He's told me to drop it off at his house and he'll have a look at it for us 😃

He's told me to drop it off at his house and he'll have a look at it for us 😃

Wise decision - shame you were not closer else I would have offered the same 

He's told me to drop it off at his house and he'll have a look at it for us 😃

Wise decision - shame you were not closer else I would have offered the same 

Thanks For the offer its much appreciated 😃.