Hello
A piece of AC advice please….
Since taking custody of my X250 2008 Ducato 3.0 in November the manual air-con hasn’t worked -The AC switch had voltage in and out (light on) & there was a historic fault code for the low pressure switch open circuit ground which I (correctly) guessed that the system was under pressured.
Local mobile AC engineer came out to perform a quick diagnostic, filling the system with Nitrogen and the AC pump clicked in and there was a modicum of cool air - he then advised the system was not holding pressure so added a uv dye and more nitrogen with view to returning with a uv light once I’d run it a short while( he didn’t have time there and then).
In the meantime I obtained a uv light but I could not find a leak in what I can see of the system - So as I had not seen any UV dye, just to check the uv light was suitable I checked the Low Pressure (LP) port where the dye had been inserted.
Bear in mind that at this point when selecting the AC, the compressor was still clicking in.
When I unscrewed the LP cap it felt tight and there was a small escape of gas - I suspect the schrader valve is tired/faulty. However there was only a small trace of yellow uv dye. The AC pump now no longer clicks in, so we are back to a too low pressure.
For note the HP port did not expel anything when removing the cap.
However, I wish to belts and braces my diagnosis by checking the evaporator for leaks, which goes without saying, is buried deep deep in the dash.
I’ve got a portable endoscope and the UV light.
My question to those in the know is , whereabouts is there in the dash with minimal dismantling that would allow access to shine the uv light upon the evaporator whilst viewing it with the endoscope…..
A piece of AC advice please….
Since taking custody of my X250 2008 Ducato 3.0 in November the manual air-con hasn’t worked -The AC switch had voltage in and out (light on) & there was a historic fault code for the low pressure switch open circuit ground which I (correctly) guessed that the system was under pressured.
Local mobile AC engineer came out to perform a quick diagnostic, filling the system with Nitrogen and the AC pump clicked in and there was a modicum of cool air - he then advised the system was not holding pressure so added a uv dye and more nitrogen with view to returning with a uv light once I’d run it a short while( he didn’t have time there and then).
In the meantime I obtained a uv light but I could not find a leak in what I can see of the system - So as I had not seen any UV dye, just to check the uv light was suitable I checked the Low Pressure (LP) port where the dye had been inserted.
Bear in mind that at this point when selecting the AC, the compressor was still clicking in.
When I unscrewed the LP cap it felt tight and there was a small escape of gas - I suspect the schrader valve is tired/faulty. However there was only a small trace of yellow uv dye. The AC pump now no longer clicks in, so we are back to a too low pressure.
For note the HP port did not expel anything when removing the cap.
However, I wish to belts and braces my diagnosis by checking the evaporator for leaks, which goes without saying, is buried deep deep in the dash.
I’ve got a portable endoscope and the UV light.
My question to those in the know is , whereabouts is there in the dash with minimal dismantling that would allow access to shine the uv light upon the evaporator whilst viewing it with the endoscope…..
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