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Installing instructions Suburban Water Heater ST-42 Control Board (521338) Includes Outer Case
I’m installing ST42 control board and I could use a few pointers please.
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Open Nov 03, 2025 - 07:21 PM
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Suburban Water Heater ST-42 Control Board (521338) Includes Outer Case
Suburban Water Heater ST-42 Control Board (521338) Control board for model number ST-42 on demand water heater Replaces part number 233725 Kit includes board and outer protective case
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