Manaut Circulating Pump GLM5 13/20 2 Speeds Ref. 8716708577
The Manaut GLM5 13/20 2-speed circulation pump moves water through the heating circuit. If this part fails, you will notice cold radiators, strange noises, overheating, and blockages in the system. It is compatible with the GLM5 13, GLM5 20, and GLM5 13/20 boilers, among others. A technician must confirm through diagnosis whether replacement is necessary when you experience these malfunction symptoms.
- Type of part
- Pumps
- Status
- Refurbished
- Catalogue reference
- 8716708577
- Warranty
- 1 year
Biasi boilers compatible with reference 8716708577
Circulating pump with reference 8716708577. Three confirmed compatibilities: GLM5 13 and GLM5 20.
Verified compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Biasi GLM5 13 | GLM5 | Verified |
| Biasi GLM5 20 | GLM5 | Verified |
| Biasi GLM5 13/20 | GLM5 | Verified |
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 the ref. 8716708577 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 8716708577. 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 8716708577
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, it remains silent or just hums without spinning.
Cause: The impeller gets stuck due to lime or rust after months of inactivity, especially at the end of summer.
With the boiler turned off and cold, remove the central plug from the shaft and try to turn it with a flat screwdriver before replacing the entire pump.
- 02
A buzzing or strange vibration is heard in the area of the pump.
Cause: It is usually trapped air in the circuit or a worn bearing that is rubbing inside.
Bleed the radiators and the bleed valve of the pump itself before declaring the pump faulty.
- 03
The radiators are cold or lukewarm even though the boiler ignites and the burner operates.
Cause: If the impeller does not pump water, the heat remains in the boiler and does not reach the circuit.
Touch the body of the pump while the circuit is running: if it is cold while the boiler is heating, it indicates that it is not circulating.
- 04
The boiler stops or shows a fault related to circulation or flow.
Cause: The control board detects that there is not enough water flow and shuts down operation for safety.
Check that the heating circuit shut-off valves are open before replacing the pump.
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 circulation pump Biasi 8716708577
- Catalogue reference
- 8716708577
- Uniclima internal SKU
- BCMGLM5.1320
- Brand
- Manaut
- 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.
- Body
- Brass
- Electric head
- Black
- Include
- Gasket and loose fitting kit
Frequently asked questions about the circulator pump 8716708577
Is this Manaut GLM5 13/20 2-speed circulator pump compatible with my boiler?
What is the reference for this circulator pump?
What materials does this circulator pump have?
How many models are compatible with this pump?
Are there documented fault codes for this pump?
