Siemens HB75AB550B Single Oven Not heating

by Paul Charmbury / Monday, 01 June 2015 / Published in

Hi Paul! My Siemens HB75AB550B Electric Single Oven is not heating, The main circuit tripped today and now the fan oven doesn't heat up. The light and grill work, but the cooker does not seem to start heating up. Can you help?
Carl

Paul answers

Siemens HB75AB550B Single Oven spare parts

Siemens HB75AB550B Single Oven Elements, Grill, Motors Etc

Hi Carl!

If your Siemens HB75AB550B Electric Single Oven is not heating or tripping the electric supply there is a good chance that the fan oven element has blown. I have included some videos below to help you test and then replace the element. Also I have include a link here for list of parts for your Siemens HB75AB550B Electric Single Oven cooker.

The oven will not turn on
The first thing you need to check is that the oven timer is not on auto if it is turn it on to manual.
No Heat in Oven
If the fan is running and the thermostat light comes on but you get no heat (or just the thermostat light on in non-fan ovens and cookers) then the probability is that the fan element or oven elements have failed.
Electricity trips (Rcd) when I turn the oven on or grill
This is normally an element that has gone to earth, This is a well-known fault with electric ovens, the insulation breaks down in the elements and trips the RCD , best way is to stick a meter on each element and check that they have not got earth leaks on them. But this can also be a wiring fault.
The grill element doesn't work
This would usually indicate that the grill element is faulty. Check these: Grill element, Oven changeover switch, Overheat thermostat, Main oven thermostat, if used to regulate the grill temperature.
The oven fan is not working or spinning correctly (slow) or is noisy
The fan motor may need to be replaced see video on this also the cooling fan motor can cause same problems.
The oven overheats and burns everything
Normally this is a simple thermostat failure which would manifest itself as this symptom.
The oven or cooker cuts out after it's been on for a while
This is an overheating problem which can be caused by the fan motor or main oven thermostat or a faulty safety thermostat that will be causing the problem. It can also be caused by a failure of the cooling fan, where fitted, but usually these go noisy before failing, Safety thermostats are used to prevent the oven or cooker overheating and will shut the oven down.

If you need any more help on this oven feel free to send me an email or use the live chat. All the best Paul.

10 Responses to “Siemens HB75AB550B Single Oven Not heating”

Eric waterfall says : Reply

October 25, 2017 at 3:45 pm

Hi Paul
Different fault for you.
I have a built in oven hb760550b/02 and it is very slow to heat up (20-30 mins)
Both top and bottom surfaces begin to warm up OK and fan works and no tripping of power or anything unusual. I changed the door seal a while ago but no difference.
Any clues please
Eric
Haroon Sattar says : Reply

October 16, 2018 at 10:51 am

Hi Paul! My Siemens Built in HB75AB550B will not come on. You mention above that you need to check is that the oven timer is not on auto if it is turn it on to manual. As the control panel does not come on how can I check the auto-timer. I have checked the power supply to the oven which has not tripped. The main power socket shows red light. Can you suggest what else I can do.
Regards
Haroon
John Thompson says : Reply

December 20, 2018 at 12:59 pm

Hi

I have a Siemens HB760550b /02 the problem is the oven takes a long time to reach the desired temperature, the elements seem to be fine
but the PTC sensor looks damaged could this be the problem

Regards

John
Margo Sagov says : Reply

February 1, 2019 at 5:50 pm

Grill function seems to be not working and general heat level seems too low. Oven is 10yrs old
Tanya Cairns says : Reply

October 11, 2019 at 1:34 pm

Hi my Siemens HB760560B/02 oven is being a bit temperamental as will sometimes heat up and other times drops the temperature to 160 or lower. It can also take really long to heat at all if having one of its bad days. Please can you help? Do I need to buy a new one or can this be fixed?

Thanks Tanya
Sue Barnes says : Reply

March 21, 2020 at 3:06 pm

Why does only the 3D function work in my electric pyrolytic Siemens single ovens (2)..no other setting
Simon says : Reply

August 11, 2020 at 12:44 pm

Oven and electric switches not lighting up but has power going to it
- Paul Charmbury says : Reply
  
  August 12, 2020 at 5:54 am
  
  We are only able to answer questions through the contact us page sorry
Ian Dixon says : Reply

August 14, 2020 at 7:36 pm

I have a Siemens HB 760.50 B oven that will not come on.
The circuit breaker has not tripped.
What is the likely problem and how can I fix it
Many
Ian
Ian says : Reply

September 1, 2022 at 6:53 pm

Thanks for that, the oven was on timer – you saved my day (and my wallet)