Siemens HB750

[clayside]

Can anyone help with fault on Siemens HB750550B/02 OVEN
After 5 mins of grill fault code 15 displayed,door is locked. Sometimes door stays locked even when oven is cold. Oven works OK on fan & normal heat, fauts happens only with grill.
Regards Clayside

[clayside]

Re: Siemens HB750

Any help please. When full grill is on No 3 after approx 5 mins fault 15.
have tried temp sensor but still the same. Seems to think oven is over heating. How is grill controlled is i timed via electronic or temp sensor ❓ Any help please.
Regards clayside

[leavemetogetonwithit]

Re: Siemens HB750

Sounds odd to me that this thing locks the door on you. Maybe that’s a safety feature to stop you getting burned?
I thought some oven/grill combos are meant to have the door left open when using grill. Have you RTM?
Mike.

[clayside]

Re: Siemens HB750

Rang main dealer in area , he said grill with door closed. Instruction book no help.
clayside

[Martin]

Re: Siemens HB750

Just purely a guess from me but it wouldn’t be that the grill element has an earth leak maybe? 😕

[gegsy]

Re: Siemens HB750

Error 15 – If the actual temperature is above 380°C, the heating elements switch off and the oven is locked.The oven door does not unlock until the temperature drops below 300°C again. (appliances with pyrolysis)
The error message is by deleted start from the customer service test program.
If the temp is no where near 380, then I would assume PTC gone west 😉

HTH

Greg

[clayside]

Re: Siemens HB750

Fitted new PTC. This happens after grill has been on full setting for 5 mins, In service mode it dosn’t show any temp until door unlocks then shows 280 but can oven get to 300 in 5 mins? What controls locking of door is it PTC. The grill element stays on full red for the 5 mins its on should it cycle.

[gegsy]

Re: Siemens HB750

Possible a module or as Martin suggested earth leakage on grill element IMO

Greg

[clayside]

Re: Siemens HB750

Will call back and check element,
Regards clayside

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