This excerpt from the user's manual can explain the problem of your hinge.
"... - If the dessert collapses as soon as it is taken out of the oven, the set temperature should be lowered by about 10° C during the next cooking and a longer cooking time can be selected. 4 Thawing and Raising Tips - It is recommended to place frozen food in a container without a lid on the first oven rail...."
WHIRLPOOL AKZ477NB, AKZ477WH, AKZ477IX, AKZ 477/WH, AKZ 477/IX
Manufacturer's part price is £10.82 Discount for bulk (starting at 10 units), £10.47 per unit
This manufacturer part is recomended by WHIRLPOOL, which gives it a 10/10 rating.
This spare part is recommended for your WHIRLPOOL AKZ 477/WH oven .
All spare parts are new and come with a 1 year warranty
① Carefully check your WHIRLPOOL oven's product number
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