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vegajoelSep 10, 2025
Why does the main burner short-cycle on my Hotsy 1.109-691.0 Pressure Washer?
- MMeredith BoyerSep 10, 2025
Short-cycling of the main burner on your Hotsy Pressure Washer, where it turns off prematurely, can be caused by: * A draft condition pulling the flame from the ignitor/sensor rod. Check the thermostat by bypassing at terminals P1 & 1. Set thermostat high. With main burner on, observe the pilot flame impingement on the ignitor/sensor. * A faulty thermostat or water temperature being too high. If pilot flame is small and draft condition pulls flame from ignitor sensor rod, the burner will turn off and then on again. a. Adjust pilot flame higher or clean pilot oriface. b. Bend ignitor/sensor rod closer to pilot flame.