Hvr HC6150M interlock bypass not effective?

[leavemetogetonwithit]

Interlock not working due to usual internal corrosion of heater / bimetal contacts. Tried bypassing it to check all ok otherwise. Machine starts, runs for 10 secs or so, then shuts down. All programmes same.
IIRC, lots of Hoover washers behave like this and once I fit a new lock all will be well. Can someone confirm that please?
Also, if that is the case, how does it work? I remember fitting a Hpt lock into the circuit to make one work once as a temporary measure.
Mike.

[electrofix]

Re: Hvr HC6150M interlock bypass not effective?

not quite sure what you are doing but though i would add this comment
in the old days ie Hotpoint WM52 62 etc if you bridged the door lock machine would just run but with electronic control this does not work
the board is expecting the lock to be open circuit at initial switch on and therefore will not set programme properly. to make it work you have to set and start programme and then short door lock within about 15 secs

hope this helps

Dave

[leavemetogetonwithit]

Re: Hvr HC6150M interlock bypass not effective?

electrofix wrote: to make it work you have to set and start programme and then short door lock within about 15 secs

Clever stuff. I learn something new every day here.
Went back and fitted new lock to this one today anyway and it runs fine.
Only ever recall having this problem with Hoover/Candy but maybe I didn’t succeed so much with bridging locks on many other electronics as when the lock’s gone on them it’s so often taken the board with it :rolls: .
Mike.

[Martin]

Re: Hvr HC6150M interlock bypass not effective?

leavemetogetonwithit wrote:Clever stuff. I learn something new every day here.

Onwards and upwards Mike, the days of yore long since past when ‘timer cam switch boxes’ were the brains and the bi-metal devices the switch that completes the circuit. Now it’s all down to circuit inductance operating triacs pre-programmed by micro-processors. PNP and NPN transistors standing in line ready to provide minute voltages suppressed through banks of resistors forming tuned circuits. Capacitors at the ready to fire up relay/contact breakers, not forgetting the absolute rule eeproms provide in tying the whole system into place.

Poking the shaft of a screwdiver against the live and common terminal on the modern interlocks is a definate no no! 😐 🙁

[electrofix]

Re: Hvr HC6150M interlock bypass not effective?

Martin wrote:

leavemetogetonwithit wrote:
Clever stuff. I learn something new every day here.

Poking the shaft of a screwdiver against the live and common terminal on the modern interlocks is a definate no no! 😐 🙁

unless its a Haier and you want to scrap it 😆

Dave

[leavemetogetonwithit]

Re: Hvr HC6150M interlock bypass not effective?

Well, I don’t do it that way, so there’s my lesson for today.
Not sure why that would blow anything though, unless you missed 😕 .
You are sounding like a very well-informed elctronics wizard these days Martin. Have you thought of offering to conduct the training Ken’s been pondering?
Mike.

[Martin]

Re: Re: Hvr HC6150M interlock bypass not effective?

leavemetogetonwithit wrote:
You are sounding like a very well-informed elctronics wizard these days Martin. Have you thought of offering to conduct the training Ken’s been pondering?

Modesty on my part doesn’t allow a direct response to your question Mike. However I will always make my services open to “Ken’s pondering” of course.:wink:

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