DIY Series 87: Samsung WA88V4 Washing Machine Repair (Part 2 of 2) - Motor

Samsung WA88V4 Washing Machine Repair (Part 2 of 2) - Motor

Symptoms:

• Upon Power ON, all Wash/Rinse/Spin Mode are not working.
• Both drum and pulsator are not rotating at all at any mode.

Findings:

• Even after replaced Gear Mechanism and Rubber Belt but still not working
• Found out the AC Motor was burnt, and capacitor was broken

Photos:

1. Samsung Washing Machine WA88V4
2. Washing Machine motor (Model: WAS165WTVA) is burnt, need to get replacement.
3. AC Motor Start/Run Capacitor (CBB65, 8uF) is not working. Measured Value = 6.97nF (broken)
4. New OEM AC Motor (Model: WAS165WTVA, 150W)
5. New AC Motor (180W ~ 220W) Wiring & Functional Check
• Red  - Blue   : 32.1 Ohm
• Blue - Purple: 31.6 Ohm
• Red  - Purple: 63.1 Ohm
• Blue is Common, AC Motor Start/Run Capacitor will be connected to Red and Purple
6. Calculation to get suitable AC Motor Start/Run Capacitor. Recommended: 12uF ~ 16uF
7. New AC Motor Run Capacitor (CBB60, 435V, 16uF). Measured Value = 16uF
8. New Motor and Start/Run Capacitor wiring connection diagram
9. New Motor + New Capacitor Testing: For Clock-Wise (CW) rotation
10. New Motor + New Capacitor Testing: For Counter-Clock-Wise (CCW) rotation
11. Install new capacitor (16uF) and new motor
12. Install new rubber belt

Videos:

1. New Motor + New Capacitor Testing: For Clock-Wise (CW) rotation
2. New Motor + New Capacitor Testing: For Counter-Clock-Wise (CCW) rotation

Tools required:

• Screwdriver
• T-Shape Wrench

Cost involved:

• WA88V4 OEM AC Motor (Model: WAS165WTVA) = US$22 ~ US$25
• CBB60/CBB65 AC Motor Start/Run Capacitor 450V 8uF = US$2 ~ US5

Info Share:

• When a motor first starts up, it needs more power than once it runs continuously. This extra boost of power is supplied by the capacitor, which acts as a battery to store power for when it is needed.
• If the washing machine capacitor is bad, there may not be enough power for the motor to start, and your washing machine may not work at all. However, the motor may try to pull excessive current, which can cause the motor's windings (the coils of wire inside the motor) to overheat and potentially burn out. Your washing machine might run but be slow and not work properly or efficiently. 

DIY Series 86: Samsung WA88V4 Washing Machine Repair (Part 1 of 2) - Gear Mechanism

Samsung WA88V4 Washing Machine Repair (Part 1 of 2) - Gear Mechanism

Symptoms:

• Upon Power ON, all Wash/Rinse/Spin Mode are not working.
• Both drum and pulsator are not rotating at all at any mode.

Findings:

• Last repair was Samsung WA88V4 Control Board Replacement on Mar 2024
• Initial suspect is either gear mechanism broken due to overloaded washing.

Photos:

1. Samsung Washing Machine WA88V4
2. Remove 2 screws at the back
3. Remove 2 screws on the top, remove the control panel cover
4. Remove 2 screws inside the control panel (main board) compartment
5. Remove the center cover at the pulsator
6. Use a T-shape wrench to remove the pulsator
7. Get the 38mm special wrench to unscrew the nut
8. Unscrew the nut by force the special wrench to turn anticlockwise. If needed, apply WD-4D or similar lubricant on the nut to assist. 
9. Dismantle the bottom cover, remove 4 nuts that holding the gear mechanism, and remove the rubber belt too. (If needed, use hammer to hit the gear mechanism from inside the drum to let it drop off to the ground)
10. Remove 4 screws at the drum's top ring, then remove the top ring and the drum
11. Clean the tub (drum base)
12. Take out the drum for cleaning
13. Drum after cleaning
14. Insert new gear mechanism and lock it to the original location
15. The original rubber belt (M-22) is too loose after changing to the new gear mechanism. (New OEM gear mechanism is having slightly smaller gear wheel)
16. Replace rubber belt size from M-22 to M-21. (It is possible to adjust slightly on belting tightness by adjusting at the motor's holder screws)
17. Washing Machine AC Motor (Model: WAS165WTVA, 150W) was burnt, need to be replace with a new motor (pending delivery).
18. AC Motor Run Capacitor (8uF) is not working too, need to change.

Tools required:

• Screwdriver
• T-Shape Wrench
• Special Wrench (38mm) for Tub Nut removal
• Hammer (optional, need for this case)
• WD-4D / Lubricant

Cost involved:

• WA88V4 OEM Gear Mechanism = US$22 ~ US$25
• Rubber Belt (M-21) = US$4 from local physical shop (online store only < US$1)

Application for KTMi-Card Student

The KTMB i-card application is open to all school, college, and higher education students throughout Malaysia, and students aged 24 and above need confirmation letter from their respective educational institutions.

College and university students in Malaysia can grab the opportunity to get a discount on Keretapi Tanah Melayu Berhad (KTMB) service fares of up to 40% by applying for the KTMi-Card Student & Komuter Link Concession.

Starting 16 April 2018, new applications will receive their "virtual card” only.

KTMi-Card Student & Concession Link Commuter Application Requirements

• College and University students in Malaysia
• Malaysian citizens
• Annual fee payment of RM10.00 including management charges for Komuter Link Concession
• for KTM Komuter in Klang Valley only
• Annual fee payment of RM33.00 including management charges for KTMi-Card Student
• for ETS & KTM intercity train services
• The card is valid for one (1) year from the date of application or after graduation
• Students must attach a confirmation letter as a student from the university / college

KTMi-Card Student Application Online

• Create a new user account at KTMB online (https://online.ktmb.com.my/Account/Login)
• Applicants can fill out the registration form online and pay the registration fee of RM33 per year for KTMi-Card Student. Payment can be made via "internet banking" either via credit/debit card or "online banking" channels offered by local banks.

How to Apply for KTMi-Card Student Online

1. Visit the link provided above and click the “Login/Sign Up” button
2. Register or log in to your KITS account
3. Fill in all the required information and click the “Save and Proceed Next” button
4. Click on the “Concession” section and make sure “Concession Type” is “Student”
5. Fill in your education information and click the “Submit” button
6. For students aged 24 and above, a confirmation letter must be uploaded
7. After receiving the application confirmation email, applicants must make payment via the link provided.
8. For students, please upload the student confirmation letter (get this letter signed by your university / get a copy from your university) and click the “Submit for Approval” button and the successful application will be saved and processed within five (5) working days

How to Make Payment for KTMi-Card Student Application Online

1. After successfully submitting the application online, the applicant is required to make payment by clicking the “Login” button
2. When the application status display appears, click on the “Proceed Payment” button
3. Check the empty “Terms and Conditions” box and click the “Agreed and Process with Payment” button
4. After completing the payment process, please wait until your application is approved and you can enjoy the KTMi-Card

Applicants can also apply for a concession card (KTMi-Card Student) at the KTM Counter at KL Sentral Station between 9am and 5pm (Open on Monday to Friday). Applicants are required to bring the original document and a copy of their MyKad or Identity Card or a card from the Social Welfare Department for the disabled for the verification process.

DIY Series 85: Hisense WTDW851S Washing Machine Repair & Servicing

Hisense WTDW851S (8.5kg) Washing Machine Repair & Servicing

Symptoms:

• Washing machine Spin Mode is not working when loaded

Findings:

• Found out rubber belt (Z-445E) between motor and gear mechanism was almost broken, unable to drive during Spin Mode. Drum (with no load) rotate very slowly during Spin Mode.

Photos:

1. Open the bottom cover, check the rubber belt condition (worn-out and almost broken)
2. Check the rubber belt part number (Z-445E) and look for equivalent parts.
3. Buy online for the replacement rubber belt (M19), equivalent to Z-445E
4. Replace with new rubber belt (M19)
5. Completed with drum cleaning

Videos:

1. Spin Mode operation after rubber belt (M19) replacement

Tools:

• Screwdriver
• T-Shape wrench

Costs Involved:

• Rubber belt (M19): US$1.00 ~ US$2.00

DIY Series 84: Samsung TV Keeps Restarting

Samsung TV Keeps Restarting (Model: Samsung 55" Smart TV UA55KU6000K)

Symptoms:

• Samsung TV (55" Smart TV) is restarting every 5 seconds with no picture and a black screen
• Suspect either backlight malfunction or LCD Panel itself is cracked somewhere

Findings:

• LCD Panel is having cracks near bottom right-side corner, causing short circuit at LCD Panel Driver Board.
• This fixing (bypassing few pins at ribbon cable) only resume the TV screen to be able to display, but unable to solve the LCD panel cracked issue. Thus, the TV screen display is deteriorated (slightly red in colour) at the right-side screen. 
• New TV LCD panel from Samsung costs RM2xxx, which is NOT WORTH for a repair. This TV is still able to work temporarily while waiting for new TV purchase.

Videos:

1. Samsung TV is restarting every 5 seconds with no picture and a black screen
2. Samsung TV able to resume working (with deteriorated screen at right-side) 

Photos:

1. Flip over the TV, unscrew all the screws at the back cover of the TV
2. Identify the Power Supply Board (right), Control Board (left, with built-in T-CON), and Panel Driver Board (bottom, with 2 ribbon cables connected from Control Board)
3. Disconnect the Power Supply Board supply output cable to Control Board, turn on the TV, the backlight is turned ON, means backlight is working fine. Turn off the TV, reconnect back the supply output cable.
4. Disconnect the 2 ribbon cables from Control Board to Panel Driver Board, turn on the TV, the backlight is turned ON, followed by a sound from the speakers, means Control Board is working fine. Turn off the TV, reconnect back the 2 ribbon cables.
5. Analyse the ribbon cable, by disconnecting 1-by-1. Use cellophane tape to mask some of the pins on ribbon cable, then turn the TV on and off to identify if the TV screen is working or not (repetitively for many times). Finally identified only 2 pins that needs to be masked (to isolate short-circuit caused by cracked LCD panel) at the right-side Panel Driver Board.
6. Upon completed fixing, turn on the TV, you can see clearly the cracked LCD panel (located near the bottom right-side corner)

Tools:

• Screwdriver
• Scissor
• Cellophane Tape

Cost Involved:

• Free (Although unable to fix the cracked TV panel screen, but at least able to make the TV to display again without restarting, with deteriorated screen display.)

Reference:

• Help! My TV Keeps Restarting! - 58" Samsung LED TV Panel Driver Board Complex Repair
• How to fix a TV with a blank screen