Help required please with Haier HW70 washing machine

[Mister Linnet]

I am trying to help my daughter out who purchased a second hand washing machine recently. The machine was operating and working OK until a couple of days ago when suddenly the machine stopped about 3/4 of the way through a wash and displayed the Err2 code.

I removed the filter, which was clean and clear. I checked the water pump impeller, this was free and not tangled up with debris. I removed the waste pipe from the top of the pump and blew through the pipe to ensure this was clear and unobstructed. I checked the outside pipework was also clear.

My daughter started a wash and bingo everything worked OK.

About three further washes were obtained before the machine stopped 3/4 of the way through a cycle and displayed the Err2 code.

I tried all that I had tried previously without success. I even tried a replacement pump but this didn`t cure the problem. I read somewhere about a reset which mentioned opening and shutting the door 6 times within 12 seconds. I tried this but the door locked after the third shutting in the sequence of 6.

Would appreciate any help and assistance. Many thanks in anticipation 🙂

[electrofix]

when the error is dispayed is there water in the machine or has the bulk of the water pumped out leaving the washing drenched ?

Dave

[Mister Linnet]

Hi Dave,
Many thanks for your interest and reply. Yes the majority of the water has been pumped out leaving the clothes inside the drum drenched.

[electrofix]

in that case i would look at the pressure sw. it has an air bell leading to a thin hose. if this sticks or blocks it tells the machine there is still water in when its gone

be carefull not to blow in the switch itself. you can with early ones but later ones can be damaged. if you post a pic we can tell by what it looks like

Dave

[electrofix]

to the right of the sump hose is a plastic bell with a thin hose going up

check its clear inside

the pressure sw is on the other end of the thin hose so would have to see the type to know if its safe to blow into it

Dave

[Mister Linnet]

Thanks very much Dave,

I`ll have to take the top off the machine to see where the thin hose leads to then take another photo. ( on the second time around of investigating the issue of code Err2 I did run a hose pipe connected to mains water through the waste water hose pipe that is connected to the top of the pump just to ensure this was not blocked and to confirm clear running water into the outside drain. When I did this I also removed the clip from the plastic bell and inserted a spare piece of hose long enough for me to blow a couple of breaths of air into the pipe by mouth. I heard like a faint click each time I blew down the pipe. )

[electrofix]

Mister Linnet wrote: I heard like a faint click each time I blew down the pipe. )

let hope its an early switch as blowing in later ones wrecks them

Dave

[electrofix]

that’s an old style one so you can blow in that one

you can also check its working with a multi meter

Dave

[Mister Linnet]

Thank you very much Dave,

I have blown through the pipe from the air bell upwards, so It would pay to detach the pipe from the switch and trying blowing downwards towards the air bell. Having said this I imagine the pipe should be clear as I heard a faint click when I blew through the pipe from the air bell, the click I heard I assume would be a diapgram inside the switch

What sort of readings am I looking out for when using a multi meter and what setting do I need to use? or would it be better to just replace the switch assuming I can find a replacement, although a cursory look on the internet suggests a genuine replacement to be £60 😮

[electrofix]

its a switch so if there is a buzz setting that will work

Dave

[Mister Linnet]

Thank you Dave, sorry to sound dense but I am useless with multi meters, I do have a continuity tester which obviously buzzes when a circuit is made, could I use this to test the switch?

[electrofix]

yes the pressure switch is only like a 2 way light switich

common terminal and then other contacts some make when no pressure and others make when pressurised

groups of terminal are often numbered consecutively. like 11, 12, 13 then 21,22,23

Dave

[Mister Linnet]

Thanks again Dave, will let you know how I get on 😉

[andyjawa]

Reading this gives me the impression that you have a duff pump rather than a duff p/swt ( pressure switch ). I have had it on Haiers before where the pumps sometimes work and sometimes do not – all very frustating, all very Chinese! What is the FULL model number please? That p/swt should only have 1 definite click up and obviously out so doubt it`ll be that, it seldom is. Also noticed leakage stain via heater which has made motor shield rusty underneath = maybe you should check the motor tags for damage… does the motor actually turn the drum pulley, does the machine spin when empty of water? Also if the motor wires are in fact ok BUT when empty of water the machine does not spin beaware that the motor brushes wear very unevenly, you can get 1 brush with 1/2″ left whilst t`other one is worn out or in its deaththrows. Just some pointers to ponder.

[electrofix]

look at the numbers from the old switch and swop wire for wire

make sure you take a pic of the old switch so you can put it back if needed

Dave

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