Bosch Oven PCB connector melted

[GL_NorthEast]

I have a Bosch Oven HBN56M550B/01.

I’d appreciate some advice, please, about how to repair/replace the edge connector on one of the PCBs because wiring and connectors aren’t available as spares from Bosch (as far as I and their spares sales team can tell).

The PC control board (power plate, replacement part 499014) failed with a mighty bang, but the damage appears quite localised around the edge of the pcb. It’s knocked out control of the fans, but everything else seems to work fine though without cooling I’m not inclined to use it.

The contacts on two of the edge connectors on the pcb have partially melted. They might or might not still work when the new board arrives, but I’d feel happier using connectors that are not damaged as it’s power rather than signal.

Can you offer any advice about how to replace the connectors, or what you would do faced with this problem?

Many thanks

[Martin]

Re: Bosch Oven PCB connector melted

I’ve no idea what type of connector block you refer to, having never seen one myself. However I would imagine it is some type of female connector and it’s just possible that your local Maplins store could offer a solution?

At 130 odd quid for a power board is a risky purchase without being sure that a faulty external component ( cooling fan, heating element etc) hasn’t caused it to blow? Meanwhile I’ll keep my fingers crossed for you! 😉

[GL_NorthEast]

Re: Bosch Oven PCB connector melted

Thank you, that’s very good advice.

I started by paying an independent repairer to fix it. He discovered the pcb was blown and proposed replacement, but found the part was out of stock. I went online to Bosch spares to investigate whether the repair was economic and found the part in stock at almost half the price I had been quoted for it.

On reflection it’s a concern that the other components hadn’t been tested and there was no plan to deal with the connectors.

I guess the repairer wasn’t quite as familiar with these appliances as I’d hoped.

Any suggestions – should I call in a Bosch person, or is there an easy way to test the other components before risking the new pcb…or should I accept that 7 years is a reasonable life expectancy for a decent oven nowadays?

[Martin]

Re: Bosch Oven PCB connector melted

GL_NorthEast wrote:Any suggestions – should I call in a Bosch person, or is there an easy way to test the other components before risking the new pcb…or should I accept that 7 years is a reasonable life expectancy for a decent oven nowadays?

Hmm?…tough question that. TBH I think your independent guy made an excuse to exit stage left so to speak. Calling out Bosch to sort it may well be your best bet. No doubt it would cost you more but it would nevertheless be fixed at the end of the day. AND far cheaper that buying a replacement oven I shouldn’t wonder. Yes I would give Bosch a call. 😀

[GL_NorthEast]

Re: Bosch Oven PCB connector melted

Thanks very much for taking the trouble to give advice – I really appreciate it.

I’ve gone with your recommendation.

[GL_NorthEast]

Resolved

Just in case it helps anyone to know:
– in the end it was only the control board (PCB) that had failed;
– all other components were tested to make sure they hadn’t caused it to blow;
– a fairly costly repair, but a fraction of the price of a new oven so a reasonable outcome.

Thanks, Martin, for your advice.

[Author]

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