Flushing Debris From Air Con System.

Flushing Debris From Air Con System.

Author
Discussion

tonycordon

Original Poster:

284 posts

235 months

Wednesday 17th August 2022
quotequote all
My 2013 XF 3.0 Diesel S has a failed A/C compressor. In the process of failing it may well have ejected swarf or other debris into the system's pipework, so just fitting a new compressor is likely to be waste of time and money. Does anyone have any experience of having a system flushed to remove debris?

Evercross

6,250 posts

69 months

Wednesday 17th August 2022
quotequote all
I suspect you might be overthinking this. A failed compressor is a fairly common cause of a non-operative A/C system and as it is an electromechanical device the failure is seldom related to its internals disintegrating.

When an A/C system is breached in any way (either due to a leak or repairs) as a matter of course it is vacuumed out (and a new drier fitted) to remove all moisture and contaminants before being refilled with gas and lubricant, so in the very unlikely event that anything had physically strayed into the pipes this would remove it.

stevemcs

8,916 posts

98 months

Wednesday 17th August 2022
quotequote all
It depends on how its failed, if it has put metal into the system then all pipes need to be removed and cleaned, condenser replaced, evaporator. replaced.

NMNeil

5,860 posts

55 months

Wednesday 17th August 2022
quotequote all
In all honesty flushing the system won't remove all the debris.
Replace the compressor and the receiver dryer, which has a built in filter.
Most, if not all of the debris will be found in the condenser radiator, and the receiver dryer should have stopped the rest before it got to the expansion valve.