How to Fix Bosch Washing Machine Error Codes F03, F18


Hi, I’m Mat. Welcome to eSpares. In this video, we are looking at
the fault codes F03 and F18 on a Bosch washing machine. An error code is generated by
the main PCB when a fault is detected in the machine, to assist
in determining what has gone wrong. Always work safely disconnect the
appliance before you start the repair. This machine has a display
on the control panel which will show the error code here. F03 and F18 indicates that the
machine has not drained the water in the correct time allowed
by the electronics. This error code could indicate
a number of different reasons why the machine is not draining. I’m going to take you through those
causes to determine the reason why. Let’s start with the most common. I’m going to start by
checking the filter. Now the filter does need to be checked
regularly otherwise, it gets blocked and if it does you will
get an error code. It is located here at the bottom
right-hand corner of the machine. Behind this cover, so just
drop this down and remove. Here we have the filter, now before I
open this up what I’m going to do is put a towel down to
collect any excess water and also use an old
washing up bowl. So that I can use the
emergency drain hose here. Just open that up and empty
whatever waters inside there into the washing up bowl. Once the water has been removed
from the emergency drain hose I can put that back into position
and then take out the filter by turning it anti-clockwise. When you get the filter out make
sure you give it a good wash to get all the fluff
and lint out from it. With the filter out check
inside for any foreign objects such as nails screws, coins
or hair grips or anything else that may have fallen out
of your pocket during a wash and also give the impeller at the back
a spin just to make sure it turns freely. There’s nothing else inside there
before you put the filter back in. When you put your filter back in
make sure it’s nice and tight so no water can leak
out in the future. Then replace the cover. The next thing I need to check
is the drain hose at the back. If that gets blocked then it
won’t be able to drain the water and the error code will be displayed. In order for me to unblock
the hose I need to remove it. At the back of the machine, to make
it easier to access the drain hose I’m going to remove this back panel by undoing the 1 Torx
head screw at the bottom. Make sure you hold onto the
panel as it will drop down. Once the screw is removed,
simply lift the panel out the way. The drain hose goes into the
back of the machine here and is held in place
by a clip at the top and also these two
clips lower down. So the first thing I’m going to do
is remove the clip at the top. You can just use your fingers
pull it away from the machine or you can use a flat headed
screwdriver if you need to. Next, I need to remove
these two lower clips Again I’m just going
to use my fingers but you may find a pair
of pliers is much easier. I’m going to lay the washing machine
on its back being careful as it is heavy. Drop the filter cover down and
unclip it from the bottom and then to remove the kickplate
I need to undo one Torx head screw and then shift the kickplate
to the right and remove. Once you remove the kick panel just
take out the emergency drain hose. One more Torx head screw holding
the pump chamber on here. Take out and then tilt the pump
chamber back to release. Pull it out to access the drain hose. Now I’ve just put a towel on
the floor as I need to remove the drain hose from the pump
chamber and there might be quite a bit of water in the drain hose. I’m going to use a pair of pliers
to remove the Jubilee clip and on this machine it’s essential that
you remove the Jubilee clip completely. The machines now upright again
as I can pull the drain hose out. With the hose removed from
the machine, a great way of getting rid of any blockages is to
put a screwdriver in one end and then pour water down the other end
and then force the water through by spinning it around
as hard as you can. Now, it’s a good idea to do this
outside as it can get very messy. Once you’re happy that the hose
is cleared of any blockages, you can then refit it to the machine. To fit the clip make sure that this
little lip goes inside the machine at the bottom like so and
then you just pinch the top to get it in place nice and firmly. Now, I need to just reposition
these clips into the back of the cabinet from the inside being
very careful not to cut yourself on any sharp pieces. I can now refit the back panel. Lay the machine onto
its back one more time and then position the
Jubilee clip over the end. Refit the pump chamber to
the front of the cabinet, just making sure that the lip
at the top goes outside that should ensure that
the screw hole lines up. To refit the kick panel I’m just going
to push the emergency drain hose through, then there’s two clips
on the far left that just slot into the cabinet and then before
you slot the right hand side in just make sure to lift up this which
is the emergency door release. Push that through and then fit these
two clips on the far right into position. You can then fit the screw which
holds the kick panel in place. Refit the cover and clip it in place and then simply lift the machine
up again and connect. If either of those checks
hasn’t removed the error code the last thing we’re going to take
a look at is the drain pump here. In order to access it, I’m just going
to lift this cover off like so and then remove the kickplate by
undoing the screw here, Torx head that holds it in place. To remove the kickplate simply
push to the right, lift up, take away the emergency drain hose
from underneath and remove. To remove the pump itself
undo the Torx head screw that holds it to the cabinet and just
let it tilt down and there we are. To remove the pump assembly I
need to disconnect the sump hose by using a pair of pliers
on this Jubilee clip. Just make that go
down to disconnect and then remove the
electrical connection by pinching and lifting up and then lastly disconnect
the drain hose again using a pair of pliers to remove
the Jubilee clip down. To see whether the pump has
failed I’m going to use a multimeter. Now, I’ve set it to the ohms setting
and set it to the 200 so it’s reading from naught to 200 ohms then
all I need to do is use the probes to touch each of the terminals,
the electrical terminals. The ideal reading for me is
between 100 and 200 and you can see that we are
getting that at the moment. Now if you put the probes in
and you don’t get any reading or it stays at 1 in this instance it
means that there’s an open circuit and the pump has failed and
it will need to be replaced. The new pump looks ever so
slightly different from the old one although it fits in exactly the same way. It comes with the filter but
doesn’t come with the clips so you have to take those off the old
one and put them on to the new one ready to refit the hoses. To fit put the drain hose on first,
squeeze either end of the Jubilee clip and then wrap it around
the bottom of the hose. Now make sure it’s nice and tight. Refit the electrical connection and
then you can fit the sump hose as well. To fit the pump to the cabinet just
make sure that this lip is outside at the top and that lines the
screw hole up nicely. Then you can refit
your Torx head screw. With the pump firmly in position I can
now refit the kick panel or kickplate. Put the emergency drain hose
through and then there’s two tabs on the left-hand side
that get into position and then I need to make sure
the emergency door release this item here, is lifted up so I
can then slot in the two tabs on the right-hand side
before refitting the screw. Cover back on and then I can
lift the machine up and test it. Excellent as you can hear
it’s draining correctly. There we have it the eSpares guide on what to look for if your
Bosch washing machine has error code F03 or F18. Please give this video a
thumbs up if we’ve helped you and subscribe for more
handy how-to videos. Find all the spares and accessories
you’ll ever need on the eSpares website. Thanks for watching.

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