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Randy BrownSep 12, 2025
Why is my Hotsy 555 HE smoking at cold-start when the burner is off?
- MMorgan EstradaSep 13, 2025
If your Hotsy Pressure Washer is smoking at a cold start when the burner is off, here are potential causes: * Weak fuel pump. Check fuel pump pressure and replace the pump if needed. * Fuel filter partially clogged. Replace as needed. * Soot build up on coils. Clean coils with soot remover. * Lime build up in coils. Clean inside of coils using Hotsy’s coils cleaner. * Improper burner nozzle. See combustion assembly breakdown. * Electrode is misaligned. Realign electrodes to specs. * Fuel pressure is too high for clean burn (fuel PSI above 140 but less than 200). Reduce fuel PSI/increase air and band set for cleaner burn without max water heat loss.
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