Gas heater not igniting — no clicking at all
you open the hot tap and there's no spark, no clicking, cold water.
weak water pressure (water flow is what triggers ignition in the first place), weak or dead batteries, a failed microswitch, or a faulty ignition unit.
open another tap to confirm good pressure, and fit fresh quality batteries. If pressure is fine, batteries are new and the heater stays silent — it's the microswitch or ignition unit; call 16062.


