Sometimes it shows a faulty time and the whole washing process is affected. The selector knobs becomes loose and sometimes may even break due to hard operation. The timer is connected to electronic wires and damages in the wire may result in the depiction of the wrong time. Splashing of the water also results in the non-working timer. The breakage of the wires inside the washing machines also produce the same result.
You might be wondering if it is really worthwhile buying online as there is the freight to consider. But don't forget that your bricks and mortar stores also have to pay freight on the parts they get - and they then pass that cost on to you, as well as their other overheads. By buying parts online you can often get steep discounts as online stores do not have to pay staff or rent for a shop front. And often they will give you free freight if the cost of your purchase is over a certain amount.