
Wilo Circulating Pump VASL15/6-2-HE For Vaillant VMW 242/2-5 - Ref. 160928
Wilo VASL15/6-2-HE circulator pump, factory-installed in Vaillant VMW, VU, and VUW boilers of series 2-5. It moves water in the circuit for heating and domestic hot water. The replacement requires first confirming the fault of the part through technical diagnosis, even when the boiler does not heat despite the burner igniting, makes excessive noise, or gets blocked due to a fault in the pump.
- Type of part
- Pumps
- Status
- Refurbished
- Catalogue reference
- 160928
- Warranty
- 1 year
Vaillant boilers compatible with reference 160928
Circulating pump with reference 160928. 26 verified compatibilities: VM 240 and VM 242.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Vaillant VM 240 | VM (heating only) | Contrasted |
| Vaillant VM 242 | VM (heating only) | Contrasted |
| Vaillant VM 280 | VM (heating only) | Contrasted |
| Vaillant VM 282 | VM (heating only) | Contrasted |
| Vaillant VMW 240 | VMW (combi) | Contrasted |
| Vaillant VMW 242 | VMW (combi) | Contrasted |
| Vaillant VMW 280 | VMW (combi) | Contrasted |
| Vaillant VMW 282 | VMW (combi) | Contrasted |
| Vaillant VMW ES 240 | VMW (combi) | Contrasted |
| Vaillant VMW ES 242 | VMW (combi) | Contrasted |
| Vaillant VU 240 | VU / VUW | Contrasted |
| Vaillant VU 242 | VU / VUW | Contrasted |
| Vaillant VU 280 | VU / VUW | Contrasted |
| Vaillant VUW 240 | VU / VUW | Contrasted |
| Vaillant VUW 242 | VU / VUW | Contrasted |
| Vaillant VUW 280 | VU / VUW | Contrasted |
| Vaillant Plus 824E | TurboMax | Contrasted |
| Vaillant Plus 828E | TurboMax | Contrasted |
| Vaillant Plus 837E | TurboMax | Contrasted |
| Vaillant Pro 24E | TurboMax | Contrasted |
| Vaillant Pro 28E | TurboMax | Contrasted |
| Vaillant 615E | Thermocompact | Contrasted |
| Vaillant 620E | Thermocompact | Contrasted |
| Vaillant 624E | Thermocompact | Contrasted |
| Vaillant 628E | Thermocompact | Contrasted |
| Vaillant 637E | Thermocompact | 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. 160928 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 160928. 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 circulation pump 160928
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 ignites the burner, but the water in the radiators does not heat up.
Cause: The burner is working well, but the pump is not circulating water through the circuit.
Touch the supply and return heating pipes: if one is hot and the other is cold, the pump is to blame.
- 02
The pump makes a loud noise or vibrates when operating.
Cause: The impeller may be partially blocked or the shaft worn, which is common after extensive use.
Listen to see if the noise changes when adjusting the pump speed; if it persists at all speeds, the problem lies with the shaft or the impeller.
- 03
Moisture or dripping appears in the area where the pump connects to the boiler.
Cause: The mechanical seal of the shaft wears out over time and starts to leak water.
Dry the area well and check in cold if the leak reappears before changing the pump; sometimes it's just a loose gasket.
- 04
The boiler display shows a fault code related to the pump or circulation.
Cause: The electronics detect that the flow or pressure sensor does not sense water movement.
Note the exact code and check it in the manual before purchasing; some circulation errors are due to air in the circuit, not the pump.
Vaillant fault codes that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| F.75 | When the pump starts, a sufficient pressure increase is not detected. | The circulation pump 160928 blocked/faulty does not generate the pressure increase that the sensor should register; check that the pump rotates and consumes, and that test P.0 shows Δp at start-up. |
| F.23 | Excessive flow-return temperature difference (insufficient circulation). | If the pump does not circulate flow, the supply heats up quickly and the return remains cold, causing a large ΔT; check the pump's performance/speed (D.14/D.19), temperatures, and bleed/filter of the hydraulic block. |
| F.24 | Temperature increase too rapid. | With the pump blocked or with low performance, the water does not circulate and the boiler temperature rises quickly; check the pump rotation and consumption, bleed the circuit, and check pressure/flow rate. |
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 Vaillant 160928 circulation pump.
- Catalogue reference
- 160928
- Uniclima internal SKU
- BCTES242
- Brand
- Vaillant
- Type of part
- Pumps
- Units in stock
- 0 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.
- Condenser
- 2.6 µF - 400V DB
- Voltage
- 230V ~ 50Hz
- Speed
- Speed II: 2320 min-1 / Speed III: 2180 min-1
- Current
- 0.39 A (speed II) / 0.27 A (speed III)
- Power
- 87 W (speed II) / 60 W (speed III)
- Nominal Pressure / IP Rating
- PN6 - IP44
- Thermal class
- Class F - TF95
- Manufacturer code (Wilo)
- VASL15/6-2-HE - refs. 4513296 and 4511547 - unit code 160952
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Vaillant VMW 242 Manual (PDF) Document © Vaillant, provided as a technical reference.


