Siemens D/W SF24261GB/08,

[OLLIE2806]

Hi guys,

Siemens D/W SF24261GB/08,

The PCB is blown, Insulation fine, heater seems fine, no sign of any leeks.
Anything else i should check,
Thanks Guys.

Ollie

[Martin]

Re: Siemens D/W SF24261GB/08,

OLLIE2806 wrote:The PCB is blown,

Well if the source of the “blown” is around the relay terminals, then replacing the unit should be fine. However if a specific triac (for example) is what’s gone on the board then caution advised and the need to investigate further essential.

So, where is this module blown anyway?

[clivejameson]

Re: Siemens D/W SF24261GB/08,

I have had just the one with a Neff badge that had a dodgy dispenser that took the pcb with it 😉

[OLLIE2806]

Re: Siemens D/W SF24261GB/08,

from what i can see there’s 3 relays on this board, looking at it with the pcb opened up so the connector pins are at the bottom, there are two smaller rectangular shaped that are sat vertical to the pins ones that seem and a slightly larger square shaped one running horizontally to the pins and this is the ones thats blown, it seems to have blown quite severely. Any ideas?

[OLLIE2806]

Re: Siemens D/W SF24261GB/08,

Any thoughts on what that larger square shape relay’s for or a possible reason for it blowing?

[OLLIE2806]

Re: Siemens D/W SF24261GB/08,

Thanks Clive, Whats the best way to check if the dispensers dodgy? This one no longer shuts (Only thing is i cant be certain it did before the blow).

[Martin]

Re: Siemens D/W SF24261GB/08,

OLLIE2806 wrote:it seems to have blown quite severely. Any ideas?

Dunno TBH Ollie but the only thing I can suggest is to trace the adjacent connector block contacts the blown component possibly leads to?

A duff dispenser solenoid for example often blows a small chip on the board rather than a capacitor. Tracing where that chip is connected to leads straight to the dispenser. A blown triac is easier to trace and faulty inlet valve, motor or drain pump often the cause. Burnt and blackened components signify overheating as a rule and transformers on the board self-destruct quite spectacularly in that way!

HTH? 🙂

[OLLIE2806]

Re: Siemens D/W SF24261GB/08,

Yes, i think so mate, There is a chip come indent that looks like the board has been grated almost about a cm odd long, just above the square shaped component i was on about and the connectors directly adjacent to it are for the dispenser (Solonoid definately has continuity though) other thing is the point for the square black component that should be soldered from the other side has blown that connection point also

[Martin]

Re: Siemens D/W SF24261GB/08,

Well I could’nt figure out what you’re on about in your last post Ollie. But my guess is that should you go to the expense of replacing that module chances are it will blow again because I suspect a device has caused the thing to blow in the first place? So you could be into a hiding for nothing if you continue TBH. 🙁

[OLLIE2806]

Re: Siemens D/W SF24261GB/08,

o.k thanks mart.

[Author]

Posts