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Temperature Probe - DHW

Part number (MPN)
998458-01
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Source
retailer parts list
checked 2026-11-06
Fitting notes

Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.

Compatible appliances

Always check the model and serial number on the data plate before ordering.

Frequently asked questions

Which appliances does 998458-01 fit?

The sources we checked list 998458-01 (Temperature Probe - DHW, Ariston) for: Ariston ACO 27 MFFI, Ariston ACO 27 Mffi Met, Ariston ACO 27 Mffi Met Edition 2, Ariston ACO 32 MFFI, Ariston ACO 32 Mffi Met, Ariston ACO 32 Mffi Met Edition 2, Ariston ACO 35 Hp Mffi, Ariston Ecocombi 27 MFFI, Ariston Excalibur 100, Ariston Excalibur 80, GENUS 23 MI COMBI NG, GENUS 27 PLUS ED 3 COMBI NG, Ariston Genus 27 Bffi Plus, Ariston Intesa TP 23 Mffi, Ariston Intesa TP 30 Mffi, Ariston Micro Genus 23 Mffi, Ariston Micro Genus 27 Mffi, ECOCOMBI 27 MFFI COMBI NG, MICROCOMBI 23 MFFI from serial, MICROCOMBI 27 MFFI from serial, MICROGENUS 23 MFFI (CMP2) fro, MICROGENUS 27 MFFI (CMP2) fro, MICROGENUS 32 MFFI HE from ser, MICROGENUS HE 24 MFFI COMBI NG, MICROGENUS HE 28 MFFI COMBI NG, MICROGENUS II 24 MFFI COMBI NG, MICROGENUS II 28 MFFI COMBI NG, MICROGENUS II 31 MFFI COMBI NG. Always check the model and serial number on the data plate before ordering.

Does 998458-01 have equivalent or superseded part numbers?

The sources we checked list no equivalents for 998458-01. Ask a Ariston stockist to confirm.

What should I check before fitting 998458-01?

Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.

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Some lists are dated and the part may have been superseded. Information only, compatibility not guaranteed.