The Failure Cases The Failure Cases For The Timer of For The Timer of

Washing MachineWashing Machine

The diagram for the place of “0” or The diagram for the place of “0” or “OFF” on types of the timers“OFF” on types of the timers

0(OFF) 0(OFF)

0(OFF)

Motorized Timer

Spin TimerWash Timer

1. No work (Stopping Vibration)1. No work (Stopping Vibration)——Wash Timer——Wash Timer

A. If the knob is not reset, which means the knob is A. If the knob is not reset, which means the knob is back to the place of “0” or “OFF” (short for “0” back to the place of “0” or “OFF” (short for “0” below), you can consider the failure from stopping below), you can consider the failure from stopping vibration and this is the timer failure.vibration and this is the timer failure.

Stop in the half wayStop at the beginning

1. No work (Stopping Vibration)1. No work (Stopping Vibration) ——Spin Timer ——Spin Timer

A. If the knob is not reset, which means the knob is back A. If the knob is not reset, which means the knob is back to the place of “0” or “OFF” (short for “0” below), you cto the place of “0” or “OFF” (short for “0” below), you can consider the failure from stopping vibration and this an consider the failure from stopping vibration and this is the timer failure.is the timer failure.

Stop at the beginning Stop in the half way

1. No work (Stopping Vibration)1. No work (Stopping Vibration) ——Motorized Timer ——Motorized Timer

A. If the knob is not reset, which means the knob is back A. If the knob is not reset, which means the knob is back to the place of “0” or “OFF” (short for “0” below), you to the place of “0” or “OFF” (short for “0” below), you can consider the failure from stopping vibration and this can consider the failure from stopping vibration and this is the timer failure.is the timer failure.

Stop in the half wayStop at the beginning

1. 1. No work (Stopping Vibration)No work (Stopping Vibration)

B. If the knob is back to “0”, but when you rB. If the knob is back to “0”, but when you rotate the knob by clockwise, the timer is otate the knob by clockwise, the timer is not on work or stopped in the halfway, yonot on work or stopped in the halfway, you can consider the failure from stopping vu can consider the failure from stopping vibration and this is the timer failure which ibration and this is the timer failure which is similar to 1.A.The related pictures is this similar to 1.A.The related pictures is the same as which for 1.A.e same as which for 1.A.

2. No work (Slipping)-Wash Timer2. No work (Slipping)-Wash Timer

If the knob is back to “0”, but when you rotate the knob bIf the knob is back to “0”, but when you rotate the knob by clockwise, the knob kicks back at once or back to “0” y clockwise, the knob kicks back at once or back to “0” quickly, you can consider the failure from timer slipping quickly, you can consider the failure from timer slipping and this is the timer failure.and this is the timer failure.

kicks back at oncekicks back at once

Back to “0”Back to “0”

2. No work (Slipping)-Spin Timer2. No work (Slipping)-Spin Timer

If the knob is back to “0”, but when you rotate the knob If the knob is back to “0”, but when you rotate the knob by clockwise, the knob kicks back at once or back to by clockwise, the knob kicks back at once or back to “0” quickly, you can consider the failure from timer slip“0” quickly, you can consider the failure from timer slipping and this is the timer failure.ping and this is the timer failure.

kicks back at oncekicks back at once

Back to “0”Back to “0”

2. No work (Slipping)-Motorized Timer2. No work (Slipping)-Motorized Timer

No slipping happens for Motorized Timer.No slipping happens for Motorized Timer.

3. The contact failure from contact point and reed3. The contact failure from contact point and reed

A.A. If the knob is back to “0”, but when you rotate the knob If the knob is back to “0”, but when you rotate the knob by clockwise, the timer is on work in normal.by clockwise, the timer is on work in normal.

a a You can use some test instrument like a multi-meter to test the You can use some test instrument like a multi-meter to test the outgoing line of the timer. Wash timer has one power input wire in outgoing line of the timer. Wash timer has one power input wire in connection with power line, and also has 2 motor output wires in connection with power line, and also has 2 motor output wires in connection with the motor. One power input wire and either of 2 connection with the motor. One power input wire and either of 2 motor output wires is in the test range, if the test instrument states motor output wires is in the test range, if the test instrument states the regular in-off signal, then it is certified that the timer is in normal. the regular in-off signal, then it is certified that the timer is in normal. If the test instrument states power on or cutting off for a long time If the test instrument states power on or cutting off for a long time while either of motor output wires or both of 2 motor output wires, while either of motor output wires or both of 2 motor output wires, and the power input wire being connected, you can consider it as and the power input wire being connected, you can consider it as the timer failure. the timer failure.

Remark:Remark: The judgment above is based on the water flow optional switch in normal; when the tThe judgment above is based on the water flow optional switch in normal; when the test instrument states regular in-off signal meanwhile the timer is no problem, no need to test thest instrument states regular in-off signal meanwhile the timer is no problem, no need to test the switch condition. But if it is stating the failure of the timer, the test for the switch should be ape switch condition. But if it is stating the failure of the timer, the test for the switch should be applied. If the switch is OK so the timer is broken down. In this case, please change another switplied. If the switch is OK so the timer is broken down. In this case, please change another switch to test the timer again.ch to test the timer again.

The test method for water flow optional switch: The test method for water flow optional switch: When you use multi-meter to test the switch terminals or outgoing line, if the instrument states When you use multi-meter to test the switch terminals or outgoing line, if the instrument states

in-off signal in normal while rotating the switch knob, it is certified the timer is OK, otherwise, thin-off signal in normal while rotating the switch knob, it is certified the timer is OK, otherwise, the timer has the defect.e timer has the defect.

3. The contact failure from contact point and reed3. The contact failure from contact point and reed

Contact point connectedContact point connected

multi-metermulti-meter

power input wirepower input wiremotor output wiremotor output wire

Picture a1aPicture a1a ： ： Regular in-off signal, which is certified that the timer is in normal.Regular in-off signal, which is certified that the timer is in normal. —— ——Wash TimerWash Timer

Test one power input wire and either of 2 motor output wiresTest one power input wire and either of 2 motor output wires

multi-metermulti-meter

Contact point cut offContact point cut off

motor output wiremotor output wire

power input wirepower input wire

3. The contact failure from contact point and reed3. The contact failure from contact point and reed

Picture a1bPicture a1b ： ： Regular in-off signal, which is certified that the timer is in normal.Regular in-off signal, which is certified that the timer is in normal. —— ——Wash TimerWash Timer

Test one power input wire and another motor output wireTest one power input wire and another motor output wire

multi-metermulti-meter

Contact point connectedContact point connected

motor output wiremotor output wire power input wirepower input wire

multi-metermulti-meter

Contact point cut offContact point cut off motor output wiremotor output wire

power input wirepower input wire

3. The contact failure from contact point and reed3. The contact failure from contact point and reed

Picture a2aPicture a2a ：： Regular in-off signal, which is certified that the timer is in normal.Regular in-off signal, which is certified that the timer is in normal. ————Motorized TimerMotorized Timer

Test one power input wire and either of 2 motor output wiresTest one power input wire and either of 2 motor output wires

multi-metermulti-meter

Contact point connectedContact point connectedpower input wirepower input wire

motor output wiremotor output wire

multi-metermulti-meter

Contact point cut offContact point cut off

motor output wiremotor output wire

power input wirepower input wire

3. The contact failure from contact point and reed3. The contact failure from contact point and reed

Picture a2bPicture a2b ：： Regular in-off signal, which is certified that the timer is in normal.Regular in-off signal, which is certified that the timer is in normal. ————Motorized TimerMotorized Timer

Test one power input wire and another motor output wireTest one power input wire and another motor output wire

multi-metermulti-meter

Contact point connectedContact point connected

power input wirepower input wire

motor output wiremotor output wire

multi-metermulti-meter

motor output wiremotor output wire

power input wirepower input wire

Contact point cut offContact point cut off

3. The contact failure from contact point and reed3. The contact failure from contact point and reed

Remark: To avoid the misjudgment of the defect from the timer Remark: To avoid the misjudgment of the defect from the timer when the actual defect is from the spin safety switch of the when the actual defect is from the spin safety switch of the washing machine, you can make the safety switch in short circuit washing machine, you can make the safety switch in short circuit before you test the timer.before you test the timer.

A.A. If the knob is back to “0”, but when you rotate the knoIf the knob is back to “0”, but when you rotate the knob by clockwise, the timer is on work in normalb by clockwise, the timer is on work in normal

b b Spin timer has one power input wire in connection with power linSpin timer has one power input wire in connection with power line, and also has one motor output wire in connection with the moe, and also has one motor output wire in connection with the motor. When you use some test instrument like a multi-meter to testor. When you use some test instrument like a multi-meter to test the outgoing line of the timer, if the instrument states connectiot the outgoing line of the timer, if the instrument states connection signal, the timer is OK, otherwise, the timer has the defect.n signal, the timer is OK, otherwise, the timer has the defect.

3. The contact failure from contact point and reed3. The contact failure from contact point and reed

Picture bPicture b ： ： Regular in-off signal, which is certified that the timer is in normal.Regular in-off signal, which is certified that the timer is in normal. —— ——Spin TimerSpin Timer

multi-metermulti-meter

Contact point connectedContact point connected

power input wirepower input wiremotor output wiremotor output wire

3. The contact failure from contact point and reed3. The contact failure from contact point and reed

B. If the timer knob is back to “0”, and when you rotate B. If the timer knob is back to “0”, and when you rotate the knob by clockwise, the timer is on work in normal. the knob by clockwise, the timer is on work in normal. When the knob is back to “0” again, if the washing tub When the knob is back to “0” again, if the washing tub or spinning tub continues rotating, you can judge the or spinning tub continues rotating, you can judge the contact point of the timer is not cut off and this is the contact point of the timer is not cut off and this is the timer failure.timer failure.

3. The contact failure from contact point and reed3. The contact failure from contact point and reed

back to “0”back to “0”

Picture BPicture B ：： The timer knob is back to “0”, and the contact point of the timThe timer knob is back to “0”, and the contact point of the timer is not cut off and this is the timer failure.er is not cut off and this is the timer failure.

multi-metermulti-meter

Contact point connectedContact point connected

back to “0”back to “0”

multi-metermulti-meter multi-metermulti-meter

Contact point connectedContact point connectedContact point connectedContact point connected

back to “0”back to “0”

When the timer needs to be detached for defect analysiWhen the timer needs to be detached for defect analysi

s, special tools and clamps MUST be used by the trains, special tools and clamps MUST be used by the trained professional person. If non-professional person detaed professional person. If non-professional person detaches the timer, it will cause new defect and make the dches the timer, it will cause new defect and make the defect causes disappear, in result of no way to analyze tefect causes disappear, in result of no way to analyze the defect, we therefore suggest not detaching the timer he defect, we therefore suggest not detaching the timer for analysis in your company.for analysis in your company.

NINGBO DONGHAI TIMER CO., LTD.NINGBO DONGHAI TIMER CO., LTD.