Steam that sputters water rather than producing dry, consistent steam — or that seems to spit excessively — usually points to the steam thermostat rather than the wand itself.
01Insufficient warm-up time (the common false alarm)
Steaming too soon after switching to steam mode often produces exactly this symptom — sputtering, watery output — simply because the boiler hasn't fully reached steam temperature yet. Always purge the wand for a few seconds into a cloth first, and wait for the ready light before judging steam quality.
02Failing steam thermostat
If the sputtering persists even with a fully warmed boiler and proper purging, the steam thermostat may be failing to maintain the correct steam-specific temperature, allowing the boiler to run cooler than it should during steaming and produce wetter output.
03Scale affecting boiler temperature stability
Heavy scale buildup can affect how evenly the boiler maintains temperature, contributing to inconsistent steam quality. See our descaling guide if it's been a while since your last cycle.