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Old 01-28-11, 07:29 AM   #299
Xringer
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Default pressure check

Did the install manual specify that you could use the built-in R410a charge with those line-set lengths?

(Without needing to add or remove some R410a)?

Since it tested good, I assume the charge started off okay (or close to correct), but now..?.

Since you can't turn it back on, I suspect you may have a leak.
Your R410a has slowly leaked down to a level that won't allow the system to start up.

I think it might be time for a pressure check. Since the system won't run,
you need to find out what kind of 'static' pressure should be seen at the fill/test port.

Edit:
I found the static pressure 201 PSIg. (at 70deg F)


If it's 70F outdoors and you see 201 PSIg, that means your system isn't bone dry.
It has 'some' R410a left, or, it could have too much.. (Which sounds very likely).

At the bottom of my label, I have LRA & charge info.

Last edited by Xringer; 01-28-11 at 10:11 AM..
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