Vaillant Aquablock VMI 280-7 Domestic Hot Water Pump Motor Ref. 0020183478

Vaillant boilers compatible with reference 0020183478

Circulating pump with reference 0020183478. 27 verified compatibilities: 240-7 and 240-7 R3.

Proven compatibility

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. 0020183478 is the part for your boiler

The part reference, model, and equipment revision must be verified against the manufacturer's documentation.

1. Find the reference printed on the installed part and check whether it matches the catalogue reference 0020183478. If it is not visible, do not identify the part from its shape alone.
2. Check the full boiler model on its data plate and look for it in the model associations on this page.
3. Compare the connections and physical body with the original part before installation.
4. If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.

Symptoms that require diagnosis in the circulation pump 0020183478

The circulation pump circulates the water in the heating circuit. These are the typical symptoms and what to do:

Common symptoms and faults

• 01

  The boiler does not produce hot water even though the heating works well.

  Cause: This motor moves the water in the Aquablock module that generates hot water; if it doesn't rotate, there is no hot water available.

  Check if there is power to the motor when you open a hot water tap before replacing it.

• 02

  The domestic hot water module pump does not spin or has difficulty starting.

  Cause: The accumulated scale in the Aquablock can block the shaft of this motor, especially in areas with hard water.

  Try turning the shaft by hand or with the slot at its end before replacing the motor.

• 03

  There is noise or vibration when hot water comes out of the tap.

  Cause: A worn motor or air in the module can make noise while turning, even though it continues to operate.

  Bleed the circuit and make sure there is no trapped air before blaming the motor for the noise.

• 04

  The boiler displays a warning or fault code related to the domestic hot water pump.

  Cause: The control unit detects that the motor does not respond to the rotation command and generates a specific fault code for this component.

  Check the connector and the wiring of the motor before replacing it due to a fault.

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.

Technical sheet: Vaillant 0020183478

Catalogue reference

0020183478

Uniclima internal SKU

MBAVMI280

Brand

Vaillant

Type of part

Pumps

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.

manufacturer

Vaillant

internal model (Typ.)

S1-15/11A B

voltage

230 V (partially covered by the cable in the photo)

current

0.11 A

power

24 W

frequency

50 Hz

insulation class

Class F

IP protection

IP 42

nominal pressure

PN 10 bar

code under the barcode (label)

1471918

internal label code

PD 0021