3-Way Valve Motor Bosch/Buderus/Ceraclass/Euroline/NW24-1 Ref. 31650020.00
The 3-Way Valve Motor Bosch/Buderus/Ceraclass/Euroline/NW24-1 Ref. 31650020.00 is a component that controls the flow of water between the heating circuit and the domestic hot water circuit. When this part fails, you will notice that there is hot water but no heating, or vice versa, and there may even be a mixing of both circuits. This motor is compatible with boilers such as Junkers Euroline ZW 23-1, ZW 24-1 E LH AE, ZW 24-2 E LH AE, among others, as well as with Buderus Logamax U032. A technician must confirm through diagnosis whether the motor needs to be replaced when you observe these symptoms of abnormal operation.
- Type of part
- 3-way valves
- Status
- Refurbished
- Catalogue reference
- 87074060980
- Warranty
- 1 year
Junkers boilers compatible with reference 87074060980
Three-way valve with reference 87074060980. Eight confirmed compatibilities: ZW 23-1 AE and ZW 23-1 KE.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Junkers ZW 23-1 AE | Junkers Euroline ZW 23-1 | Contrasted |
| Junkers ZW 23-1 KE | Junkers Euroline ZW 23-1 | Contrasted |
| Junkers ZW 24-1 E LH AE | Junkers Euroline ZW 24 | Contrasted |
| Junkers ZW 24-2 E LH AE | Junkers Euroline ZW 24 | Contrasted |
| Junkers ZW 24-2 E LH AE | Junkers Ceraclass ZW 24-2 | Contrasted |
| Junkers ZW 24-2 LH KE | Junkers Ceraclass ZW 24-2 | Contrasted |
| Junkers U032-24 | Buderus Logamax U032 | Contrasted |
| Junkers U032-24K | Buderus Logamax U032 | Contrasted |
Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.
How to check if ref. 87074060980 is the part for your boiler
The part reference, model, and equipment revision must be verified against the manufacturer's documentation.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 87074060980. If it is not visible, do not identify the part from its shape alone.
- Check the full boiler model on its data plate and look for it in the model associations on this page.
- Compare the connections and physical body with the original part before installation.
- If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.
Symptoms that require diagnosis in the 3-way valve 87074060980
The 3-way valve diverts water between heating and domestic hot water. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler heats the tap water well, but the radiators remain cold.
Cause: The motor does not fully turn to the heating side and the valve remains in the domestic hot water position.
With the boiler turned off and unplugged, disconnect the motor from the gas valve and check if the shaft turns freely by hand.
- 02
When opening a hot water tap, the boiler takes time to respond or doesn't heat, although it works fine for heating.
Cause: The motor stops halfway and does not activate the limit switch on the domestic hot water side.
Listen to see if the motor makes the end-of-travel click when the boiler starts; if it keeps humming without clicking, it doesn't complete the rotation.
- 03
A rattling or clicking noise is heard in the area of the valve every time the boiler changes mode.
Cause: The internal gears of the motor are worn out or the pinion is cracked and they do not transmit the rotation smoothly.
With the boiler running, check if the noise always coincides with the switch between domestic hot water and heating.
- 04
The boiler is switching between modes on its own without anyone opening or closing taps.
Cause: The internal shaft of the valve is seized due to lime or corrosion, and the motor is forcing without reaching the correct position.
Check the water hardness of the installation and if there is a filter or anti-scale device; lime scale buildup is more likely in hard water.
These symptoms can have more than one cause. If your boiler displays a fault code, send it to us via WhatsApp along with a photo of the labeling, and we'll tell you if this is the part.
Data sheet for the Junkers 87074060980 three-way valve.
- Catalogue reference
- 87074060980
- Uniclima internal SKU
- MV3VJZW23
- Brand
- Junkers
- Type of part
- 3-way valves
- Units in stock
- 3 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Part data and available documentation
Contrast the label codes, PCB, and revision with the installed part; they are not necessarily equivalent references.
- Voltage
- 220V-240V
- Frequency
- 50Hz
Frequently asked questions about the 3-way valve 87074060980
Is this 3-way valve motor compatible with the Junkers Euroline ZW 23-1?
Does this valve motor work with the Buderus Logamax U032-24?
What voltage and frequency does the 3-way valve motor need?
How many models are compatible with this 3-way valve motor?
Is the valve motor reference MV3VJZW23?
Is this motor suitable for the Junkers Ceraclass ZW 24-2 range?
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