Grundfos UP 15-60/SD Pump · P/N 59716503
Grundfos UP 15-60/SD circulator pump, reference 59716503. Power supply 230 V~ · 50 Hz and power 110 W.
- Type of part
- Circulator pump
- Status
- Refurbished
- Catalogue reference
- 05732500
- Warranty
- 1 year
Saunier Duval boilers compatible with reference 05732500
Spare part referenced as 05732500 in the Saunier Duval catalog, with 13 verified applications in the following models from the Isofast, Isotwin, and Isomax ranges:
Verified compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval Isofast F 35 E | Saunier Duval | Verified |
| Saunier Duval Isofast F 35 E1 | Saunier Duval | Verified |
| Saunier Duval Isofast C 35 E | Saunier Duval | Verified |
| Saunier Duval Isofast C 35 E1 | Saunier Duval | Verified |
| Saunier Duval Isofast C 31 E | Saunier Duval | Verified |
| Saunier Duval Isofast C 31 E1 | Saunier Duval | Verified |
| Saunier Duval Isofast F 31 E | Saunier Duval | Verified |
| Saunier Duval Isofast F 31 E1 | Saunier Duval | Verified |
| Saunier Duval Isotwin C 28 EA | Saunier Duval | Verified |
| Saunier Duval Isotwin F 28 EA | Saunier Duval | Verified |
| Saunier Duval Isotwin F 24 EA | Saunier Duval | Verified |
| Saunier Duval Isomax C 28 E2 (after the number 0500612151) | Saunier Duval | Verified |
| Saunier Duval Isomax F 28 E2 (after the number 0500612151) | Saunier Duval | 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 ref. 05732500 is the part for your boiler
Before requesting the spare part, check the correspondence between the label of the installed motor, the hydraulic body, and the PCB of your boiler:
- Compare the complete model UP 15-60/SD and the P/N 59716503 from your pump's label.
- Check the spare part reference 05732500 and the specific application for your boiler in the table.
- In Isomax C 28 E2 and F 28 E2, the application corresponds to units after the number 0500612151.
- Compare the shape of the hydraulic body, the connections, and the electrical connector with the photographs in the gallery.
What to check before replacing the circulator pump 05732500?
Common symptoms and faults
- 01
Insufficient heating or temperature lockout
Cause: Poor circulation can raise the temperature of the circuit. A closed valve, a sensor, or the three-way valve may also be involved.
The diagnosis must distinguish the flow of the circuit and the operation of the pump before replacing it.
- 02
The pump is buzzing but does not start the circulation.
Cause: In the Isofast F 35 E1, the manual lists a blocked pump or a faulty capacitor among the causes of overheating.
A technician must check the motor-condenser assembly; the noise alone does not identify the faulty part.
- 03
The boiler stops with fault code F.23 or F.24 when the temperature rises too quickly.
Cause: Blocked pump or low power, or air in the circuit.
Bleed the system and have a technician check the circulation pump.
- 04
The boiler stops with fault code F.22: there is not enough water in the circuit.
Cause: Low water in the circuit or faulty water pressure sensor.
Fill the water circuit. If it happens again, have a technician check the pressure sensor.
- 05
The boiler stops with fault code 05: overheating.
Cause: Possible air in the system, faulty pump or obstruction.
Have a technician check it. If the water is not circulating, the pump is suspect.
- 06
The boiler stops with fault code 21: lack of water in the system.
Cause: Pressure below 0.5 bar: lack of water or leak.
Fill with the blue key until about 1-1.2 bar. If it drops again, have a technician check it.
- 07
The boiler stops with a warning of low water or low pressure, and the pressure drops again after refilling.
Cause: Low water in the circuit, faulty pressure sensor, or loose wire from the pump or sensor.
Check the cold pressure and the cables. If the pressure drops again, have a technician look for leaks.
Fault codes Saunier Duval that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| Isofast F 35 E1 | Overheating circuit | The manual includes blocked pump, faulty condenser, closed valves, overheating thermostat, and presence of air among the causes. It does not equate on its own to a defective pump. |
| 14 · Isofast F 35 E / F 35 E1 | Temperature limitation | The table includes faulty pump, domestic hot water sensor, three-way valve, and insufficient heating flow. It requires differentiating those causes. |
| 05 | Overheating safety: the bimetallic thermostat of the boiler has tripped, which has a manual reset. | If it repeats, check that there is water in the system and that the pump is circulating. If it is not circulating, point to the pump. Have a technician check it. |
| F.22 | Stopped due to lack of water in the circuit or due to incorrect reading from the water pressure sensor. | Code with a dot, typical of the Isofast Condens; the old Isofast models use numbers. With the boiler cold, check the pressure gauge: if the pressure is low, refill; if not, the sensor or the cable to the pump are suspect. |
| F.23 | Safety shutdown due to excessive temperature variation: the pump may be blocked or underpowered, or there is air in the circuit. | Code with a dot, typical of the Isofast Condens. If the boiler stops again while heating, it points to the pump: have a technician check it. |
| F.24 | Safety shutdown due to too rapid temperature rise: pump blocked or with low power, or air in the circuit. | Code with a dot, typical of the Isofast Condens. Just like the F.23: if it repeats, have a technician check the pump and the air in the circuit. |
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 05732500 circulation pump.
- MPN verified on the label
- 59716503
- Catalogue reference
- 05732500
- Uniclima internal SKU
- BCIF35E1
- Brand
- Saunier Duval
- Type of part
- Circulator pump
- Units in stock
- 6 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Depending on the country; cost shown at checkout
- Return
- 14 days
Part data and available documentation
Compare the electrical data and the references of the Grundfos front panel with those of the pump installed in your boiler:
- Component manufacturer
- Grundfos
- Model
- UP 15-60/SD
- PCB reference
- 59716503
- Power supply
- 230 V~ · 50 Hz
- Rated power
- 110 W
- Indicated current
- 0.45 A
- Protection and class
- IP44 · TF95 · class H · max. 6 bar
- Condenser
- 2,5 µF
- Additional marking on PCB
- 0535SAU
- Spare part reference for verification
- 05732500
Frequently asked questions about the circulator pump 05732500
Which reference should I compare?
