Baxi Roca Laura 20/20 F Circulating Pump RSL16/6-3 Ref. 7803038
Circulating pump for Baxi Roca Laura 20/20, Laura 30/30, R30/30, RS/RSI, and RS20/20F boilers. The label only shows the brand Baxi Roca, model RSL16/6-3 Ku C, with three speeds (1700, 2000, and 2400 min⁻¹) and IP44 protection. It circulates the water in the heating circuit; it is replaced when the pumping fails, makes noise, or the radiators do not heat.
VAT included
Consult via WhatsAppBaxi Roca boilers compatible with reference 7803038
Circulating pump with reference 7803038. 11 verified compatibilities: Laura 30/30 and Laura 30/30 F.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Baxi Roca Laura 30/30 | Laura 30 | Contrasted |
| Baxi Roca Laura 30/30 F | Laura 30 | Contrasted |
| Baxi Roca Laura 30 AF | Laura 30 | Contrasted |
| Baxi Roca R 30/30 | R 30/30 | Contrasted |
| Baxi Roca R 30/30 F | R 30/30 | Contrasted |
| Baxi Roca R 30/30 FP | R 30/30 | Contrasted |
| Baxi Roca R 30/30 P | R 30/30 | Contrasted |
| Baxi Roca RS 20 | RS 20 / RSI 20/20 | Contrasted |
| Baxi Roca RS 20/20 | RS 20 / RSI 20/20 | Contrasted |
| Baxi Roca RSI 20/20 | RS 20 / RSI 20/20 | Contrasted |
| Baxi Roca NR-15/20 SP | NR-15/20 | 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. 7803038 is the part for your boiler
What determines it is not the boiler model, but the reference printed on the part you already have installed.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 7803038. 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 and faults that the circulation pump 7803038 resolves.
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 pump does not start or makes a strange noise when trying to turn
Cause: The impeller may be seized due to limescale or there could be a worn bearing that is rubbing.
Turn the shaft manually using the central plug and bleed the circuit before replacing it.
- 02
The radiators are cold even though the boiler is on.
Cause: Without water flow, there is no circulation and the heat does not leave the boiler.
Check if the pump has the speed selector in a low position before declaring it faulty.
- 03
The boiler indicates a flow or circulation fault.
Cause: The control unit detects that not enough water is passing through the circuit and shuts down for safety reasons.
Make sure that the circuit valves are open and that there is no trapped air before changing the pump.
- 04
There is a noticeable vibration or continuous humming in the pump body.
Cause: It is usually due to air in the circuit or internal wear of the bearing.
Bleed the radiators and the pump well; if the noise continues afterwards, it could be the pump.
Fault codes for Baxi Roca that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| 06 | Overtemperature open during ignition. | If the circulating pump is seized/not rotating, there is no circulation in the primary circuit and the heat exchanger overheats on start-up, activating the safety clixon. Check by loosening the shaft from the front plug of the pump and verifying that it receives voltage and consumes/starts rotating. |
| 14 | Overtemperature open during operation. | A blocked or failing circulating pump reduces the flow during service and causes overheating of the primary, triggering the klixon. Check the actual rotation of the rotor from the plug, electrical supply, and bleed air from the circuit in case of cavitation/air pockets. |
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 Baxi Roca circulator pump 7803038
- Catalogue reference
- 7803038
- Brand
- Baxi Roca
- Type of part
- Pumps
- Units in stock
- 3 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- Return
- 14 days
Data read on the part and in the manufacturer's documentation
What we have not been able to verify does not appear here.
- Voltage
- 230V
- Frequency
- 50 Hz
- Condenser
- 2.6 µF - 400VDB
- Nominal pressure
- PN6
- Protection
- IP44, Class F, TF95
- Speeds
- III 2400 min⁻¹ (0.39A / 86W) | II 2000 min⁻¹ (0.29A / 63W) | I 1700 min⁻¹ (0.20A / 42W)
- Model
- RSL16/6-3 Ku C
- Part code
- 4513556
- Additional code (possible batch/manufacturing)
- 4513774
- Manufacturing date
- 21/05
- Place of manufacture
- Made in EU
Frequently asked questions about the circulator pump 7803038
Is this RSL16/6-3 pump suitable for a Baxi Roca Laura 20/20 F boiler?
How many speeds does the pump of the Baxi Roca Laura 20/20 F have?
Why does the pump of the Baxi Roca Laura 20/20 F need to be replaced?
What pressure can the RSL16/6-3 pump from the Baxi Roca Laura 20/20 F withstand?
Spare parts related to Baxi Roca R 30/30
