Heat exchanger blocked

[Dman2]

Hi
What's the best way to clean this out
Air conditioning exchanger off Claas
Airline not blasting through

 

[KB6930]

Hot pressure washer and patience

 

[Timbo]

Hi
What's the best way to clean this out
Air conditioning exchanger off Claas
Airline not blasting through

Power washer. Carefully.

Replace the cab filters, and keep the bloody back window shut !!