Camplux RS264 (RV tankless) error code E4
Water inlet temperature sensor fault - the board reads a fault on the inlet (cold-side) temperature sensor or its circuit.
What to check, and in what order, is in the app. The flow Camplux RS264 / RS264B - error codes E0-E7 walks this code step by step with the pass/fail measurements, wiring schematics and procedures that go with it, and it works offline in the bay.
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- Camplux 2.64 GPM RV Tankless Water Heater - Instruction For Installation And Use, Model RS264/RS264B (PDF title 'RV-M-20220708', modified 2023-03-06)Camplux (North Charleston, SC)
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