Customer has had a long history of this split not working. Many techs have added then removed 410A over the last 12 months. I recovered *****, weighed in exact charge, it had double the amount of ***** needed. It only has a 2 meter line set. Indoor coil is packed with hair spray and dirt. Very tough to clean hair spray off, but i got 50% of it off, but it did not make one bit of difference. I hooked up the service checker and called tech support for 2 hours with no help.

Compressor goes from min HZ 52 to exactly 74 HZ every 30 seconds or so. It never loads up. All pressures and temps seem normal, we can not see why the compressor is being limited. All temps are in C and pressures in kg/cm.

Suction 23
disch temp 69
R4T temp 35
Subcooling coil 32
disch pressure 23
suction pressure 7.4
cond temp TC 38
Evap temp TE 1.0
Inverter temp 58
EV! open 1376 pls
EV2 closed 0 pls no subcooling
Indoor EXV barely open 322 pls
Target cond pressure 25
Target evap pressure 8.0
Target cond temp TcS 42,0
Target evap temp TeS 3.

I just noticed TE 1.0C

Any help would be appreciated on why the compressor is being limited and what to use to get hair spray out of indoor coil without damaging the High Impact Polystyrene drain pan. Thanks