Wilo Circulating Pump Motor for Saunier Duval Themafast NOx F 30 Ref. 0020087276
Circulating pump motor for the Saunier Duval Themafast NOX F30 boiler and other compatible Thema/Themafast Condens models. The manufacturer is Wilo, type HB16/6.7-2. It moves water through the heating or domestic hot water circuit at two speeds, 64W and 85W. Replacement requires first confirming the fault of the part through technical diagnosis, even when the boiler is not heating, the pump is making noise, or it does not start.
- Type of part
- Pumps
- Status
- Refurbished
- Catalogue reference
- 0020087276
- Warranty
- 1 year
Saunier 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
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 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 that require diagnosis in the circulation pump 0020087276
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 takes a long time to heat up or does not deliver heat properly to the radiators.
Cause: The pump impeller does not move enough flow through the circuit.
Check that the circuit is not blocked before replacing the pump: a healthy pump with a dirty circuit gives the same symptom.
- 02
A buzzing sound is heard when starting the heating, but the shaft does not rotate.
Cause: The rotor is blocked, often due to sediment buildup after a period of not using the heating.
With the boiler turned off, try turning the shaft by hand using the front screw before requesting the replacement.
- 03
The pump does not start when the boiler calls for heating.
Cause: The motor may be faulty or it may simply not be receiving power from the PCB.
Check with a multimeter that the pump is receiving 230V at its terminals before replacing it.
- 04
There is vibration or unusual noise in the pump during operation.
Cause: It is usually due to air in the impeller or a bearing worn out from use.
Bleed the air from the heating circuit and check if the noise disappears before replacing the part.
Fault codes Saunier Duval that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| 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
- Uniclima internal SKU
- MBCTNF30B1
- Brand
- Saunier Duval
- 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.
- Voltage
- 230V
- Frequency
- 50Hz
- Power
- 64W (speed I) / 85W (speed II)
- Current
- 0.29A (speed I) / 0.38A (speed II)
- Condenser
- 2.0 µF
- Degree of protection
- IP44
- Insulation class
- Class F
- Nominal pressure
- PN3
- Maximum fluid temperature
- TF95
- Manufacturer code
- WILO Type HB16/6.7-2, N° 4516719
Frequently asked questions about the circulation pump 0020087276
Does this Wilo pump motor fit my Saunier Duval Themafast NOX F30?
How do I check that this Wilo motor is the exact part for my boiler?
What voltage and frequency does the pump motor of the Themafast NOX F30 operate at?
What fault in the Thema Condens or Themafast indicates that this motor needs to be replaced?
What is the power of the motor at each speed?
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