Maya 24 FF Circulating Pump - CMSL15/5-1 - Ref. 1302255
The Maya 24 FF - CMSL15/5-1 - Ref. 1302255 circulator pump from Wilo is a component responsible for moving water through the heating circuit of your boiler. If it malfunctions, you will notice cold radiators, strange noises, or even overheating due to a lack of water circulation. This model is compatible with boilers such as MX2, MX2 24 FF, and B60 30 BFFI, among others. A technician should confirm through diagnosis whether it needs to be replaced when you start experiencing these symptoms to avoid further damage to the heating system.
- Type of part
- Pumps
- Status
- Refurbished
- Catalogue reference
- 61301964
- Warranty
- 1 year
Chaffoteaux boilers compatible with reference 61301964
Circulating pump with reference 61301964. Four confirmed compatibilities: MX2 and MX2 24 FF.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Chaffoteaux MX2 | MX2 | Contrasted |
| Chaffoteaux MX2 24 FF | MX2 | Contrasted |
| Chaffoteaux Compy MX2 24 FF | MX2 | Contrasted |
| Chaffoteaux B60 30 BFFI | B60 | 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. 61301964 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 61301964. 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 circulator pump 61301964
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 is working but the water is not circulating: radiators are cold or the boiler locks out due to overheating.
Cause: If the impeller is blocked or spins loosely, the water does not move and the boiler may lock out due to excessive internal temperature.
Check if the shaft rotates freely with the front screw (if it has one) before replacing the entire pump.
- 02
A buzzing or vibrating sound is heard in the pump when starting the heating.
Cause: It could be air in the circuit, low pressure, or scale in the impeller, not necessarily the motor.
Check the circuit pressure and bleed the system before purchasing the part.
- 03
The pump does not start, it remains silent when requesting heating.
Cause: Burnt motor or seized shaft after a long period of inactivity, typical if the boiler has been unused for months for heating.
Try to manually release the shaft and check that power is reaching the terminals before discarding it.
- 04
Water is dripping from the pump shaft area.
Cause: The mechanical seal wears out and starts to leak from there.
Confirm that the dripping originates from the body of the pump and not from a nearby fitting or bleed valve before requesting the spare part.
Chaffoteaux fault codes that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| 60-70-80 | Lack of water circulation | The circulating pump/air separator (stuck, seized, with air or without power) prevents the primary flow and triggers this code; check 230 V at the pump, bleed the circuit, and release/confirm shaft rotation from the front cap. |
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 Chaffoteaux circulator pump 61301964
- Catalogue reference
- 61301964
- Uniclima internal SKU
- BCCM24FF
- Brand
- Chaffoteaux
- Type of part
- Pumps
- Units in stock
- 5 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.
- model
- CMSL15/5-1
- manufacturer reference
- 1302255
- capacitor
- 2.6 µF - 400V DB
- voltage
- 230V~ 50Hz
- protection grade / nominal pressure
- IP44 - PN6
- thermal class
- Class F / TF95
- speed
- 2200 min-1
- current
- 0.38 A
- power
- 86 W
- batch code
- 4513085 (42/04)
Frequently asked questions about the circulator pump 61301964
What is the reference for the pump of the Maya 24 FF?
Is this pump suitable for my boiler Maya 24 FF?
What capacitor does the CMSL15/5-1 pump of the Maya 24 FF use?
What is the consumption of the pump of the MX2 24 FF boiler?
Why does the CMSL15/5-1 pump of the Maya 24 FF need to be replaced?
What is the reference for this circulator pump?
Spare parts related to Chaffoteaux MX2
