Wilo Circulating Pump for Saunier Duval Thema Condens F AS 24 Boiler
If you notice cold radiators, strange noises, or overheating in your boiler, it is possible that the Wilo circulator pump for the Saunier Duval Thema Condens F AS 24 boiler, reference 0020087275, is the cause. This pump is responsible for moving water through the heating circuit. When it fails, it can cause blockages due to lack of circulation and trigger faults such as F.75, which indicates a problem with the pump. It is compatible with models from the Themafast Condens, Themafast NOx, and Isofast Condens ranges, among others. It is recommended to replace it upon detecting any of these symptoms to avoid further damage.
VAT included
Consult via WhatsAppSaunier Duval boilers compatible with reference 0020087276
Circulating pump with reference 0020087276. Five confirmed compatibilities: Themafast Condens F 24 E and Themafast Condens F 30 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval Themafast Condens F 24 E | Themafast Condens | Contrasted |
| Saunier Duval Themafast Condens F 30 E | Themafast Condens | Contrasted |
| Saunier Duval Themafast NOx F 30 | Themafast NOx | Contrasted |
| Saunier Duval Isofast 21 Condens | Isofast Condens | Contrasted |
| Saunier Duval Isofast Condens F 35 A | Isofast Condens | 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. 0020087276 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 0020087276. 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 0020087276 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 boiler turns on but takes a long time to heat up, or the radiators don't reach the desired temperature.
Cause: The Wilo pump is not delivering sufficient flow, either because the impeller is worn out or because it is not spinning at the correct speed.
Check the mode or speed selected on the pump, if it has a selector, before replacing it.
- 02
There is a vibration or rattling noise in the pump area when the boiler starts up.
Cause: There may be air trapped in the circuit, or the rotor shaft is starting to seize up.
Bleed the air from the heating circuit using the pump's manual bleeder before considering the change.
- 03
The pump is not turning, and the boiler is locking out or not heating at all.
Cause: The motor is seized, something common after months of not operating in the summer, or the internal capacitor has failed.
Try to unlock the shaft with a screwdriver in the front slot of the motor before declaring the pump dead.
- 04
Moisture or dripping appears at the junction between the motor and the pump body.
Cause: The shaft's sealed closure has worn out and no longer isolates the electrical part from the water.
Check that it is not a gasket near the casing that is leaking before replacing the entire pump.
Fault codes from Saunier Duval that this spare part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F.22 | Safety shutdown: lack of water | If the pump motor is blocked/faulty or disconnected (wiring/PCB), there is no circulation and the control interprets a lack of water. Check the pump start in test P.0, presence of PWM/230 V voltage, and motor continuity/consumption. |
| F.23 | Safety shutdown: excessive temperature variation | A pump without flow (blocked or with reduced power) causes an excessive ΔT flow/return. Check the pump's rotation/speed, bleed air, and ΔT in the heat exchanger; verify PWM/230 V control. |
| F.24 | Safety shutdown: temperature rise too fast | If the pump is stopped or performing poorly, the flow rises very quickly as the water does not circulate. Check the power supply and rotation of the pump and bleed the system; if it does not respond in P.0, replace the pump. |
| F.75 | Pump error, lack of water | Upon start-up, the electronics await a pressure variation when the pump starts; if the motor does not turn or does not generate flow, there is no change and F.75 appears. Check the pump test and pressure change, voltage to the pump, and the condition of the impeller. |
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 Saunier Duval circulator pump 0020087276
- Catalogue reference
- 0020087276
- Brand
- Saunier Duval
- Type of part
- Pumps
- Units in stock
- 1 unit
- 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
- 50Hz
- current
- 0.5A
- IP rating
- IP44
- connections/thread
- G1/2
Frequently asked questions about the circulation pump 0020087276
Does this Wilo pump fit the Saunier Duval Thema Condens F 24 E?
What fault does replacing this pump resolve in the Thema Condens?
Does this Wilo pump also work for the Themafast Condens F 30 E?
How many models are compatible with the Wilo BCCSDTCFAS24 circulation pump?
What fault codes can be resolved with this pump?
Spare parts related to Saunier Duval Themafast Condens
