kefah
21-05-2014, 09:02 PM
Hi
today i get a call from customer
with this story
he said before 2 months his Haier R22 24000 BTU mini split stopped working
so after calling a technician
who brought a new rotary compressor which was Toshiba ph400
similar to the burn out one type and the replaced it
ok
after installing it the compressor and charging it damaged directly
by starting drawing about 50-60 amp
so the technician brought another compressor
which was LG qp407
then charged it
he installed with these reading
12 amp drawing
and it cooled for about 1/2 hour then overloaded
he called me today
i ran the unit
attached my manifold gauge to suction line valve
the pressure when unit was off
= 150 psi
once unit started
the pressure dropped to 0 then raised to 30 psi
then dropped to zero
compressor amp draw = 7 amp
with liquid line frozen
what is the cause
low charge or blockage in system
today i get a call from customer
with this story
he said before 2 months his Haier R22 24000 BTU mini split stopped working
so after calling a technician
who brought a new rotary compressor which was Toshiba ph400
similar to the burn out one type and the replaced it
ok
after installing it the compressor and charging it damaged directly
by starting drawing about 50-60 amp
so the technician brought another compressor
which was LG qp407
then charged it
he installed with these reading
12 amp drawing
and it cooled for about 1/2 hour then overloaded
he called me today
i ran the unit
attached my manifold gauge to suction line valve
the pressure when unit was off
= 150 psi
once unit started
the pressure dropped to 0 then raised to 30 psi
then dropped to zero
compressor amp draw = 7 amp
with liquid line frozen
what is the cause
low charge or blockage in system