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Water Heater Service Manuals & Error Codes
Service manuals, error codes, and parts diagrams for water heater repair across all major brands.
300Service Documents
56Service Manuals
189Error Codes
5Brands
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Top Error Codes for Water Heater Repair
CodeBrandDescription
A7BoschOutlet temperature sensor not sensing expected output temperature...E9BoschOverheat sensor (ECO) open circuit (resets when cooler temperatures...EABoschNo flame ionization detected with water flow.ECBoschGas leakage error, gas valve circuit not closing properly.05ElectroluxService reminder - the predetermined service period has been reached....10ElectroluxCombustion abnormality (BTU Drop) - unit continues working with...11ElectroluxIgnition failure (initial flame fault detection).12ElectroluxFlame rod does not detect flame (flame fault detection) - accidental...14ElectroluxOverheat Prevention Device (Thermal Fuse) triggered.16ElectroluxAbnormally high output temperature.20ElectroluxHigh limit switch triggered.29ElectroluxCondensate trap/drain trap clogging or abnormality.30ElectroluxAir inlet thermistor abnormality (open or short circuit).31ElectroluxInlet thermistor abnormality (open or short circuit).32ElectroluxOutlet thermistor abnormality (open or short circuit).Popular Brands
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Access 300 service documents, 189 error codes, and step-by-step diagnostics for water heater repair.
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