Replacement With Electronic Controllers
While still fairly popular, cam timers are mechanical and hence subject to wear and reliability problems. Their reliability record remains good, but there is always some failure rate with mechanical switch contacts.
Electronic controllers have largely replaced cam timers for most applications, primarily to reduce costs, and also to maximise product features.
Cam timers don't have the greater degree of flexibility that CPU-based controllers provide. As well as offering more wash program variations, a cpu based washing machine controller can automatically initiate test cycles, reducing manufacturing costs, and provide fault codes in the field, again reducing repair costs, and providing feedback on real world failure rates and causes. All of these reduce manufacture and business costs.
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