Summary

Line transformer, 100-115V-230 Vac, multi‑voltage, 18‑24 VAC

Made to fit: NIECO® Electric and Gas Broilers

Compatible Models: NIECO® 750BYB, 8025G, 9015, 9025, JF143, JF62, JF62-2, JF63-2, JF63-2 Rev C (Red Robin), JF63-2-BG, JF64-2, JF93G, MPB73, N1535, N550G, N750

OEM part numbers: 22929, 4553486791, 10529

The Nieco 22929 transformer (also referenced as 4553486791) is a multi‑voltage line transformer used in Nieco electric and gas broilers. It accepts input voltages of 100‑115‑230 VAC and outputs 18‑24 VAC.

Its role is to regulate the high incoming line voltage to a lower, safer voltage that is used by control circuits, ignition systems, relays, or sensors in the broiler. Nieco 4553486791 line transformer helps stabilize voltage and protect sensitive control electronics from spikes or fluctuations.

Transformers in failing condition often generate excess heat or make a humming/buzzing noise. This can indicate internal winding issues or insulation failure. If the control board, belt drive, or ignitor is receiving fluctuating or insufficient voltage, the transformer may be failing. This can result in random resets, delays in heating, or poor performance.

Replacing the Nieco 22929 transformer (also known as part 4553486791 and previous 10529) is essential when signs of voltage irregularity, control board malfunctions, or heating issues appear.