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Overload + Contactor

Part number (MPN)
3003621
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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 3003621 fit?

The sources we checked list 3003621 (Overload + Contactor, Riello) for: PRESS200P/N TL3230-400/50 OIL, PRESS200T/N TL3/230-400/50 OIL, PRESS300T/N TC3/400/50 OIL, PRESS300T/N TL3/400/50 OIL, EMME2000 TL3/230400/50 OIL, GAS 8 P/M 538 T1 BURNER OIL, GAS 8 P/M TL3/230-400/50 OIL, Riello P200 P/G 482M1 3477768, Riello P200 T/G 477M1 3477724, PRESS140 T/N TC3/220380/60 OIL, PRESS140 T/N TL3/220380/60 OIL, PRESS200 P/N 472 M1 OIL, PRESS200 P/NA TYPE 8516D BURN, PRESS200 P/NA TYPE 8526D BURN, PRESS200P/N TC3/230400/50 OIL. Always check the model and serial number on the data plate before ordering.

Does 3003621 have equivalent or superseded part numbers?

The sources we checked list no equivalents for 3003621. Ask a Riello stockist to confirm.

What should I check before fitting 3003621?

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Some lists are dated and the part may have been superseded.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.