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Old 05-25-2022, 06:13 PM   #1
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roof A/C recharge?

what # of freon is used in a roof AC unit? has anyone had their unit recharged? can it be done in the house or up on the roof? does it have to be done by an RV type serviceman?
thanks Rod in AZ
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Old 05-25-2022, 06:24 PM   #2
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what # of freon is used in a roof AC unit? has anyone had their unit recharged? can it be done in the house or up on the roof? does it have to be done by an RV type serviceman?
thanks Rod in AZ
They are not designed to be recharged since they do not come with schrader valves. You will need to find a refrigeration/air-condtioning company to recharge it and many won't even touch it.
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Old 05-25-2022, 06:51 PM   #3
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They are not designed to be recharged since they do not come with schrader valves. You will need to find a refrigeration/air-condtioning company to recharge it and many won't even touch it.
X2, you will need to find a HVAC company that will add a port.

What issues are you having? Have you looked at how dirty the coils are on the inside and outside? Dirty coils greatly reduce the efficiency. How often do you clean the air return filter? Do you use the foam filter?
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Old 06-11-2022, 11:21 AM   #4
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Most RV units last many years before requiring service.

Try this link, there are some great tips for tuning up your AC so it works better.
https://www.jaycoowners.com/forums/f...ing-67173.html
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Old 06-11-2022, 11:28 AM   #5
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Keep in mind that any A/C that needs recharging has a leak somewhere (unless it was low from the mfg which would be rare). Repairing the leak will likely not be easy, especially if it is in the coil(s). However, I have seen some that had a line that was too close to something and a hole got rubbed into it, repairing that leak wouldn't be as challenging, however as mentioned above these A/C do not have recharge ports installed which are required in order to recharge. Another thought, with it as hot as it is today in many locations, some people may think their A/C needs a recharge when it is actually working fine, but it can't keep up with the heat. In those cases, a recharge would not help. ~CA
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