Hot liquid line?

[aw]

What is a hot (not warm) liquid line an indication of?

[pfemike]

It's not a reliable indicator of anything without actual measurements.

You need pressure and temprerature readings for us to make any guesses.

[Shophound]

Prematurely, inadequate subcooling.

Cause of inadequate subcooling...dirty condenser, undercharge, etc.

Just scattershootin', here.

[NormChris]

It us usually a sign that hot gas is leaving the condenser and entering the liquid line.

[dec]

Guess I never really thought about that as a bad thing if I was really pumping out a lot of heat.....Hummmm maybe I should rethink that lol

[alexb]

I know of an apartment unit, just replaced last year, that suffers this problem. The liquid line is indeed much hotter than it [should be], given the 70-degree outside temp that was present when I looked at it. I have no quantitative measurements, but just comparing this apartment system to my system at home, whos liquid line doesn't get 'hot' until the temp approaches 95 outside.

Inside, the tempurature delta cannot possibly be anywhere near 20degrees.

BUT... The conndenser unit is the kind that blows the hot air out right above the intake, and I know it's sucking all that hot air back across the coil; THIS would also account for a hot liquid line.

[bornriding]

Hot liquid line means high condenser pressures
Condenser not taking out all heat
No other reason for line to be hot - should be amient temp.