haier RBFS21 - Manual (Page 18)

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(14) Door ajar alarm
When.any.door.is.open.for.over.60.seconds,.the.door.ajar.alarm.function.of.the.
refrigerator.will.go.off,.and.the.refrigerator.will.produce.buzzers.once.every.30.
seconds..This.alerts.the.user.that.there.is.a.door.left.open.
(15) Over-voltage protection
The.refrigerator.is.equipped.for.over-voltage.protection...When.the.function.of.
over-voltage.is.in.effect,.the.refrigerator.will.turn.off.automatically..After.5.
minutes,.the.power.should.be.turned.back.on.
(16) Power-break memorization function
When.the.refrigerator.cuts.off.from.over-voltage.protection,.the.settings.of.the.
refrigerator.before.the.power.break.are.memorized..This.allows.the.refrigerator.
to.return.to.the.previous.settings.when.it.is.turned.back.on.
(17) Fault Display
If.the.display.is.broken.but.you.still.hear.accompanying.beeps.when.you.press.
buttons,.this.means.the.buttons.are.still.working...However,.you.should.call.an.
after-sales.service.engineer.to.fix.the.problem.to.ensure.optimum.performance......