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Changing element on Bosch HBN7050GB built under oven.?I'm trying to replace the element in a Bosch HBN7050GB double oven.
One of the screws holding the element in place is behind the fan. I have removed the retaining nut and keyed washer but the fan seems solid on the spindle. If I wedge a bit of wood under the blades of the fan to stop it moving I can just about get the spindle to turn with pliers but I don't want to do any damage. Is the fan screwed onto the spindle or is it pushed on?
Any suggestions gratefully received!
Andy July 2006
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Click here if you can answer this question |
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A regular chore for me. So WD40 the using a small 10 cm adjustable spanner use the flat on the spindle to hold spindle still while rotating the fan. Need to avoid damaging the screw thread.
Trevor March 2013 |
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got the element replaced, (again) never taken the fan off since first time, I always remove top bracket from element.
However I still have a dead oven as the wire connected to the element has come off at the other end :(
How do I get into the back to reconnect it?
Phill October 2012 |
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The fan can be prised off gently by pushing two wooden wedges behind the fan to take up the play in the fore/aft movement and bring the fan slightly forward. Replace the central nut to protect the thread on the spindle and then sharply tap the nut a couple of times which should be enough the break the seal between spindle and shaft in order to "wiggle" the fan off. Took me about half an hour in all to replace heater element.
In hindsight (after I replaced the fan!) I should have drilled two holes, one on opposite side to the other, large enough to access the top screw that holds the element, so that there would be no need to remove the fan next time!!
Tony January 2011 |
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I got fed up with trying to get the fan off so I cheated and drilled a hole in the fan where the screw was. It worked like a treat, got the old element off and got the new one on with a bit of jigging about. Only took 20 mins after I drilled the hole.
ceabird Rob September 2010 |
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To the chap who replaced the element yet the oven still didn't heat up - I've had the same problem this morning - the additional faulty part was the temperature regulator
Neil C August 2010 |
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Advice good. Fan bolt comes off clockwise, washer comes off if prised with screwdriver and fan slides off after WD40 and then if spindle held and fan wiggled. Found it easier to take back off and connect element from behind. Expect some smoke initially from new part.
Michael April 2010 |
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Jimbob, you are the man, same oven, same problem, thanks ever so much !!!!
Chris March 2010 |
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This was an irritating job for reasons listed already but because you know that there is a specific tool designed some that would make removing the fan a doddle. Anyway, followed the advice from here, WD40 etc, no real luck loosening the fan. In the end, I connected my power drill head (it has a hand tightening chuck), made sure it was tight on the spindle, put it on its lowest setting and then gave it a few spins while holding the fan - worked a treat, quick tug and the fan was off.
Everything else worked out pretty well. PLEASE NOTE that fan oven elements may give off a little smoke when they are first used as the manufacturer coating burns off. This totally freaked me out when it happened and I nearly ended up calling BOSCH.
In the end, did everything from the front of the oven so no need to take it out to get behind it. Thanks to everyone for the great advice.
Mike October 2009 |
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I had same issue - could remove screws from 2 bottom parts of element, but could not get to top screw. Model of oven is HBN7052GB/05.
I followed Kevins advice, plenty of WD40, let it work its way in and then holding onto the flat spindle with pliers, wiggle the fan. It is not threaded on, so with gentle but firm persuasion, should come free.
El Brittas December 2008 |
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I would agree with Alan (Sept 08) above. The fan is a devil to get off but follow his instructions and it will come off - I used WD40 once I had removed the retaining nut and washer and left it for an hour and that certainly helped. Who ever designed this to place the top retaining screw for the element behind the fan wants his head testing!!
Peter December 2008 |
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drill a very small hole on the edge of the fan. that did it!
jimbob September 2008 |
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I have just removed the fan from my Bosch HBN7052GB oven (lower oven) in order to replace the element. I don't know if all are the same. First make sure the power is off - I know it seems obvious but it is easy to miss. To remove the element, need to get the fan off to access the centre mounting clip. I had to remove the nut from the motor spindle - you need to hold the fan with one hand and undo the nut noting that it is a right hand thread - opposite to normal. Next is a washer with a cut out (keyed to match a protrusion on the fan) - I had to gently lever this loose with a small flat blade screwdriver. Next came the fan - I noted on the internet that many people had a problem to get it to come off. Mine is a push fit to the motor spindle and not threaded. The trick was to use large flat pliers to hold the spindle (which has a flat on it) and then to turn the fan until it moved freely on the spindle. Then by turning the fan I could slowly remove it off the spindle. Pulling did nothing - I needed to break the corrosion between the two parts by turning and then it came away relatively easily. You need to use some care as too much force could well damage the motor. With the fan off you can undo all the screws holding the element BUT I then needed to access to the back of the oven to undo the blade terminals which connect to the element. Others suggested you could access the wires from the front but it seemed far too tight and removal of the oven and the back plate was actually relatively easy. Hope this helps.
Alan September 2008 |
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Managed to get mine off and fitted the new element.Still not working though. anybody have any idea why that might be?
Simon March 2008 |
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I did not get the fan off so couldn't reach the unreachable screw BUT i've removed the top bracket from the new element and fixed the element to the cooker on the two bottom brackets and it is stable and solid. Spent about 3 hours working on the fan but had to give in. Tried all forms of lubrication and metal coercion known to man, including a blow torch and hammer.
Anyone else has problems with the fan removal, don't panic - just use a screwdriver to bend and release the top bracket (reason for removing the fan). Then just use the old top bracket. Pointy nose pliers are your friend.
Matt October 2007 |
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My fan simply WILL NOT come off. Spindle is spinning freely and wd40 is penetrated well. Fan feels loose. Tried heating the spindle too to get a release. No good.
Matt October 2007 |
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Done it!
WD40.
Hold the spindle with some pliers and gently wiggle (The fan that is!)
Kevin 2007
Kevin 2007 August 2007 |
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I don't have an answer but have exactly the same problem....any luck as I can't seem to find anything on the web to advise.
Kevin 2007
Kevin August 2007 |
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