Ariston
Ariston Return Group 999537
Ariston return group, part number 999537, for selected EST, Microtec and R2 23 MFFI appliances.
At a glance
- Appliance family: EST, Microtec and R2 23 MFFI
- Also known as 1597893
£321.79
£268.16 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Ariston 999537 is a return group assembly used in the heating circuit of selected Ariston gas appliances. It forms part of the water return path within the boiler, directing flow back through the heat exchanger and associated components. It is listed for fitment to EST, Microtec and R2 23 MFFI models in both LPG and Natural Gas variants.
Signs this part needs replacing
- Water weeping or visible leaks around the return group connections
- Corrosion, scale build-up or discolouration on the assembly
- Boiler losing pressure repeatedly with no obvious external leak
- Knocking, gurgling or unusual noise from the return side of the circuit
- Poor or uneven heating performance linked to restricted return flow
Before you order
- Confirm your appliance model matches one of the listed fits
- Check whether your appliance is the LPG or Natural Gas variant
- Verify the part number 999537 against the manufacturer's parts list for your appliance
- Inspect the existing return group and surrounding connections before removal
Compliance
| Alternative numbers | 1597893 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ARISTON EST 23 MFFI LPG EDITION 2 (01 DEC 2001) | — | — | — | |
| ARISTON EST 23 MFFI NATURAL GAS EDITION 2 (01 DEC 2001) | — | — | — | |
| ARISTON MICROTEC 23 MFFI LPG EDITION 2 (01 DEC 2001) | — | — | — | |
| ARISTON MICROTEC 23 MFFI NATURAL GAS EDITION 2 (01 DEC 2001) | — | — | — | |
| ARISTON R2 23 MFFI LPG EDITION 2 (01 DEC 2001) | — | — | — | |
| ARISTON R2 23 MFFI NATURAL GAS EDITION 2 (01 DEC 2001) | — | — | — |
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
No technical questions yet for this part.
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