If water is turned off suddenly, the heating element stays hot for a moment; let the water run for a few seconds to normalize.
: Complete all plumbing work and fully fill the heater tank with water before turning on the electricity supply . Activating the system dry will burn out the heating element instantly. Operating Instructions alpha v1 jet-em manual
: Flush all mud, debris, and pipe scale from the incoming water lines before mounting the unit. If water is turned off suddenly, the heating
: Cuts off power immediately if a current leakage as low as 15mA is detected. Operating Instructions : Flush all mud, debris, and
: Never reverse the Inlet and Outlet ports . Turn on the main water supply to flood the internal tank completely, purging all trapped air, before initiating any electrical tests. 2. Electrical Wiring