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Old 06-27-2024, 10:51 AM   #1
Epp
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Dash AC not working

On our 2001 DSDP The dash air conditioning quit working after it being parked for the winter. Hooking up the gauges to it without the engine running,
the high side and low side are reading 88 psi at an outside temperature 87°F.
I am assuming that tells me I do not have a catastrophic leak in Freon.

With the engine running and the AC on the compressor is turning and I’m reading pressures of High side 125 psi and low side of zero psi.

I would’ve thought that the low pressure switch would’ve disabled the compressor from running with these low pressures.

I assume these readings are telling me that I am low on 134 a right now

Am I interpreting these results correctly?

Thanks for any help


Epp
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Old 06-27-2024, 12:30 PM   #2
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I'll assume your 2001 has the same Evans dash A/C system as my 99.

Pressure info ; page 6.
Attached Files
File Type: pdf Evans Tempcon manual.pdf (1.46 MB, 21 views)
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Old 06-27-2024, 02:13 PM   #3
Epp
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Evans – AC pressure info

Quote:
Originally Posted by Skip426 View Post
I'll assume your 2001 has the same Evans dash A/C system as my 99.

Pressure info ; page 6.
Yes, my 2001 has the Evans Dash unit that yours does, this looks like the perfect information I was looking for,

thanks Skip


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Old 08-23-2024, 06:34 AM   #4
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Do you have an update on what the issue was? My first guess would be a stuck thermostatic expansion valve (TXV). I'm having the same issue but with a SGM brand system. I purchased a new receiver/dryer, TXV, and was going to flush out the entire system before vacuuming and recharging.
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