low duct temperature

[Rick H]

I have a 2.5 ton split unit. New evaporator last year. It all worked fine until now. However now I cannot get lower than 65 degrees out of the duct anywhere in the house. This was in the 50's before.
Suction 125
head 280
Condenser unit is about 4 years old. Seams to be working good.
I am at a loss.

Thanks

Rick

[frank]

Pressures are meaningless without knowing what refrigerant you are talking about.

Other parameters such as air entering, air leaving, room temp etc. also help.

[Rick H]

Pressures are meaningless without knowing what refrigerant you are talking about.

Other parameters such as air entering, air leaving, room temp etc. also help.

Sorry r410

superheat 10-13
subcooling 10

air into evaporator 73
room temp 73
temp at evaporator {little temp lead inside) about 53

of course temp outside is 95-100

[frank]

I would suspect that you have a refrigerant shortage.

The only way to tell is to recover and check the amount against the nameplate charge.