HWH error code BLOWN FUSE F3 F8
Fuse F3 (15A, Right Front solenoid valve - LED 6) or F8 (5A, Pump Relay control output - LED 16) is blown.
What to check, and in what order, is in the app. The flow Leveling — entry diagnostic (Lippert + HWH + BAL + Bigfoot + Atwood + Power Gear) 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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- HWH 625 Series Control-Box LED & Fuse ReferenceHWH Corporation
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