Why is my air conditioner frozen
AC Line Freezing Up? Here is WHY!
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today's video will be working on this
desi
obviously you can see here that the line
is frozen solid
see the systems running right now so we
want to do is we want to allow this to
fall out so we're gonna go ahead and
pull our disconnect and allow this line
to fall out while we troubleshoot for
the problem the thermostat is set to
cool and oil I do have more voltage
because my condenser was running you see
here this is the evap the evap were
frozen as well so right now we're gonna
pull our panel or to inspect the filter
first day I noticed when I came here is
the blower motor was not running the
first day I want to check whenever I'm
working on my system if I suspect an
issue with the blower motor right here
is gonna be my fan relay and if you just
put your hand over it I can see it's
extremely hot that tells me that my
relay is sending the signal but for
whatever reason my blower motor is not
responding you can see here it's about
101 outside and that's taking the
temperature off of the asphalt here I'm
just taking a temperature off with my
relay and you can see the surface
temperature right now to the touch is
116 we're going to open the panel I was
able to speak with the prospect and
there was work done prior to this you
can see here what they did was they
replace the capacitor genuinely when
you're dealing with issues relating to
your blower motor what happens
oftentimes is the first thing the
technician is going to do is replace the
capacitor now what I always advise to
individuals who pursue that well is when
you replace the capacitor you may allow
to extend the life of your blower motor
anywhere from a few hours to a few days
to a few months so it's kind of a 50/50
chance when you just replace the
capacitor and safety is very important
when you're working on the system I did
remove my panel so this did disengage my
door switch this is actually a safety
once you remove your panel this will
remove any power to your system or any
reason you're unsure or you want that
extra step of safety go ahead and remove
the 120 volts to your system if you're
unsure you can always use your
non-contact voltage detector I'm gonna
reapply power this is gonna be my
non-contact most detector you can see I
have incoming power once you remove
power you should not have any voltage
coming in the next thing I want to do
when I'm working on the blower motor
once I've removed the power is I want to
just put my hands with the squirrel
cages and see if I can rotate it and
this motor is completely ceased up I can
see somebody at some point that it's
some type of lubricant it's kind of give
it some extra time but this thing is not
moving no matter what I do the next
thing I want to do is I want to test the
incoming voltage to my blower there have
been cases where I've inspected the
blower motor I've tried to turn the
squirrel occasion it moves freely so at
this point I just want to make sure that
we are getting incoming voltage to our
blower motor once the door switch is
engaged here I have a multimeter set to
volt AC what I'm doing here is if you
look at my wires I have my white which
is my neutral common and my black that's
gonna be my hundred and twenty volt
power supply to my blower motor you can
see here it ties into the purple and the
black and what I did was I traced the
wires up here put my multimeter in the
prongs you want to obviously make sure
that your thermostat is set to the
proper settings right now I have the
thermostat set to cool and auto on the
fan if you are unsure you can go ahead
and just put your fan to the on position
instead of auto and what I'm going to do
right now is I'm going to hit my door
switch so
you do see 120 volts here at my harness
I'll do the same thing here where my
wired nuts are and I'm just gonna check
for the voltage in there obviously we
have one going into our hot one going to
the neutral gonna engage my door switch
and you can see here that I do have a
hundred and twenty volts I have seen
guys in the field use their non-contact
voltage detector kinda as a quick test
so you can see here I do not have power
coming in obviously because my door
switch is not engaged my door switch man
we engaged use electrical tape some guys
like to use a magnet the door switch is
engaged mr. I do that power the
electrical tape disconnect
we're 120 volt power supply at this
point we're ready to start removing our
bull motor we have two screws that
secure the frame there's one on each
side remove those two screws just simply
just slide out with the blower motor the
blower is extremely hot so you want to
be careful you can see here it's
reaching even up to 180 just on the
surface touch so be very careful when
you're handling the blower motor this is
the part that you want to pay attention
to again I know a lot of times guys see
wires and they say hey I'm just gonna
connect the same wires with the same
colors but that's not true necessarily
especially when dealing with blower
motors here you can see we have three
wires that are tied in we have two that
are cut off from this blower motor you
want to do is you want to make notes on
what speed each of the wires are useful
and what they connect to here when you
look at the schematics if you look at
the wires that are connected these are
my notes right here so from my harness I
have orange purple and black the purple
is going to be after it goes through my
line splice connector on my red harness
it comes up as white and
is going to be my common or my neutral
on my notes I'm going to put a C and
that indicates to me that this is the
common the orange wire all orange is
going to be from my medium low speed so
here we put medium low the black wire is
going to be from my high speed looking
at our schematic the Purple's are common
the oranges are medium low and the black
is going to be our high speed not to get
the proper wiring you want to look here
on your blower motor and read the
schematics so if you look here you can
see the motors still hot you can see the
black is going to be from my high speed
so here we need to connect our high
speed on our new blower motor to the
black the orange is going to be our
medium low the white is going to be
connected to our line which is gonna be
our neutral or our common here reading
my notes I know that the purple which is
the common should be connected to my
white here we have purple to white black
is gonna be our high black to black is
our orange are just gonna be medium low
medium low now again the reason I point
this out is because there are times
where you get different type or styles
of blower motors and the wires are
completely different you may have an
orange wire on your new blower motor but
you may control a completely different
speed speed is always gonna be for your
AC and your medium a low speed is gonna
be for your heater now we're ready to
remove our blower motor from the
squirrel cage and reassemble our new one
so here we're going to remove our screws
that's secured to the outer case this is
going to be our torsion kit it's going
to remove our three screws including our
ground you everybody loosen our lock nut
and secures to our shaft
from older you don't have to take the
screw all the way out you just want to
make sure remove the capacitor did pull
right out here I have a degreaser just
gonna spray this in there and then I'll
hold it down some guys kind of skip this
step slowly up to you because see all
the dirt and corrosion is coming out of
there
goal isn't to make our blower our
squirrel-cage shiny the goal is to
remove any possibility of contaminating
the new motor with dust and debris are a
few things that you want to make sure
when you're purchasing your new motor
and installing your new one you want to
make sure on your new motor that you get
the same horsepower the same voltage and
you also want to pay attention to your
amperage also want to make sure that
your RPM matches your new motor want to
keep in mind that when you purchase your
new blower motor it does not come with a
capacitor so you're gonna have to
purchase a capacitor separately always
recommend when you do put a new blower
motor or a condenser fan motor you
always want to put a new capacitor as
well we're also going to have to replace
our motor torsion mount old motor they
were actually attached to the motor
itself on the new ones we're going to
have to add it make sure you put your
gaskets in the proper positions in all
three you want to make sure these go in
because this will help with reducing any
vibration of your new motor just slide
it down and then we'll secure it to the
motor we're gonna tighten down our
torsion kit we make any connections
we're gonna go ahead and drive fit our
motor to our squirrel cage on this
specific motor we are gonna have to cut
down the ends of these rods this is just
to ensure that we have enough clearance
once we put the new squirrel cage on we
don't want any restrictions allowing it
to move freely and here I use my grinder
to cut the rods right off now we're
gonna dry fit our motor don't use a
screw driver don't use your drill just
want to use our fingers just to make
sure everything properly fits the reason
you want to use your finger is because I
have seen situations where a drill or
screwdriver was used and you end up
stripping the screw also keep in mind
this is going to be the top of the base
when I reconnect it so here
make sure my wires are here at the
bottom I don't really like wires
dangling here on the top also keep in
mind is gonna be the top of the base
when I reconnect it so here I want to
make sure my wires are here at the
bottom I don't really like wires
dangling here on the top now I'll use my
screwdriver to fasten and tighten my
connection we want to make sure that we
connect our ground wire wires for the
capacitor pretty long so I just like to
zip-tie it yeah I'm gonna take the
rubber guard off of my old motor and I'm
gonna use it for my new capacitor don't
have it a lot of these new motors the
lines already insulated just make sure
that when you connect it that you slide
it all the way down I'm gonna secure my
new capacitor now we're going to connect
our squirrel cage to our shaft to things
you want to keep in mind number one if
you look at the shaft there's a flat
part right here you can see the rest is
oval if you get a top view and you can
see that this part is flat you always
want to make sure when you tighten your
squirrel cage that you take your lock
screw and you tighten it directly to the
flat part if you don't do that and you
tighten it to the oval eventually it'll
come loose and you'll cause more
problems so make sure you secure it to
the flat portion of the shaft of your
motor Kinley you want to make sure that
you adjust your squirrel cage nice and
evenly you don't want it too up because
it'll scrape against the frame you don't
want to down to the scraper against the
motor so you want to go ahead and just
put it right in between here tighten it
down nice and secure you can see I'm
just rotating it manually just to make
sure that we don't have any issues with
this scraping but now I'm going to give
it a nice torque and tighten it down you
want it nice and tight you don't want
this thing coming out now here based off
the schematic of my new wires you can
see my yellow is going to be my comment
my two Brown are gonna be for my
capacitor my black is gonna be for my
high-speed my blue is gonna be for my
medium speed and my red is gonna be for
my low speed so see here we have wires
that are here in the back and this is
gonna be for rotation so it basically
tells you which ones go for
counterclockwise and which one is for
the clockwise rotation one here is I
basically just capped off my red and my
blue that's gonna be my medium in my low
and then I connected my hot which is my
black which is gonna be my high speed
and then my yellow which is gonna be my
comment or my neutral now this is gonna
be a regular three prong cord that I'm
using you can see here what I'm gonna do
is I just need 120 volt supply to my
blower motor I want to make sure it's in
the proper rotation before I install it
this specific setup you have the filter
at the bottom that's the air that's
coming in you can see here it tells me
the rotation that I need and basically
here you want the airflow to push up I'm
just gonna plug it in I just want to
make sure the rotation is correct I have
a piece of paper
up there told me to see the rotation
here at the shaft
I'm gonna unplug it and we'll see it
slow down so we do have the proper
rotation now I'm just gonna slide in my
motor see there's little grooves there
that will allow the rolling on the site
to slide in and then I'll secure my two
screws on the top now that we got it in
we're gonna go ahead and secure it you
so here we have our harness and we have
our orange of purple and I'll black this
is our old motor which I crossed out
this is my new motor the black is gonna
be the high the yellow is gonna be the
common and the blue is gonna be the
medium black to black
that's my high speed orange to blue
that's my medium speed go to yellow
that's my neutral or my common here
I just capped off my red which is gonna
be my low speed
it's my old filter some would go ahead
and replace it see the difference this
is gonna allow for more airflow you want
to make sure when you install the filter
that you install it with the proper
airflow so there's gonna be pointing up
towards the blower I'm gonna plug my
disconnect back in be here the lines
already fought out I'm going to reapply
about 120 volts or to manually engage
the door switch and that should turn the
blower on because the thermostat is set
to the proper settings
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