DX GSHP problems

[Larslk]

The refrigerant mass was checked a few weeks ago, but i am not sure that it was done properly, by the tecnician.

there is is on the evaporator suction, but not at the TXV.

There is no glycol/water since it is DX

[Gary]

The refrigerant mass was checked a few weeks ago, but i am not sure that it was done properly, by the tecnician.

Did he add refrigerant?

[Larslk]

Did he add refrigerant?

He did add refrigerant, but how much i dont know, i just have a suspicion that something isnt as it should, thats why i am trying this forum.

[desA]

The refrigerant mass was checked a few weeks ago, but i am not sure that it was done properly, by the tecnician.

there is is on the evaporator suction, but not at the TXV.

There is no glycol/water since it is DX

Again, please.

GSHP = ground-source heat-pump, no? So you're going DX directly implanted in the ground, not the conventional circulating loop system.

There should be temp sensor somewhere - in the ground, otherwise you'll not be able to work out what is going on.

Could your ground temp have really dropped so low? I'd wonder about that.