Replacement control board kit restoring ignition control on the ST-60 on-demand water heater, including the board itself and its outer protective case.
The Suburban Mfg 521339 is a replacement control board kit for the Suburban ST-60 on-demand water heater, replacing the original control board (part #233666). The kit includes both the board and its outer protective case, restoring reliable ignition control when the original board fails.
This kit is the internal control board and case for the ST-60, not the exterior wall-mount temperature control panel. Confirm the water heater model before ordering, since the ST42's equivalent control board (part #233666) uses a separate case kit (part #521338 is the ST42's wall-mount controller, a different component).
• (1) Suburban Mfg 521339 control board • Outer protective case