split system is this odd ??

[phs]

sore this the other day any one know what would cause it ?

temperature drop over the indoor unit is only 2 degrees ?

not looking to fix it just curious of the cause, from what my friend told me some one installed it about a year ago work fine till now

[pwg11386]

not normal, most-likely low on charge but it could also have a different issue. have you checked the washable filter (if it is a mini)

[hvac-learning]

Valve hung up or open ... fludded txv

[phs]

its not low on gas it's r22 the gas was at 900 kpa. off. checking the specs that is normal once on cooling it dramatically drops like very low about 50kpa.

[phs]

The line freezing up is the liquid line

[lynn comstock]

Check your air filter, Mate.
What's a kpa? Can ya translated into old English units for us? We kind of like psig.

[saylor240]

The line freezing up is the liquid line

No....the line freezing up is not the liquid line, and if you only have 2 degree diff inside then your coil is froze. turn off system let everything melt. and have HVAC guy check your pressure.

[Milk man]

The little line is either a liquid line or mixed phase line. If it is a mixed phase line it needs to be insulated. The difference between the two lines is where the metering device is located.

The little line looks oily and that is where I'd look first for a problem.

A system can still be undercharge and the pressure will match the PT chart when not running.

[KCA]

900 kPa = 130 psig
50 kPa = 7.3 psig

kPa is normally an absolute pressure, but I am assuming that he is talking in terms of gauge measurement. Atmospheric pressure is a bit over 100 kPa.

[Texas-Tech]

Appears to be 5/8 which would make it the suction line. Your coil is probably frozen and you can't figure out anything till you thaw it out completely. Take a flashlight and look up through the louvers and find the blower wheel, could be quite dirty.

[phs]

It's the liquid line it's 1/4 " that's how much it's frozen. the suction at the bottom is 3/8 where the service valve is . it's a 2.5 kw unit . I checked the presure with gauges. 1.5 deg . Is in C not F it's 34.7 deg F

[lynn comstock]

Look inside of the unit to see if the frost continues inside and where the frost ends (or begins). There has to be a restriction at the point where the frost begins. (If this is the liquid line as you say.)

[ZeroTolerance]

Pretty sure that's the suction line that's frozen up. Check blower and clean coils. Also check air filter. Might possibly have a leak