what tips for using compact water boiler? 1)Don’t install the machine in the wet ,It ‘s likely loose electric. 2)Before you use the china compact water boiler,You should make the water full , Then Turn on the power. 3)When used it,Don’t remove the ground wire of the water heater easily. 4)Don’t forget to examine the position of water machine,Where the source of the water come into. 5)Make clean Regular. 6)Before maintaining,You should cut off the source of water and electric of it.