The electric water heater that rent a house has been used for several years, now this hot water sometimes has no, very distressed.There are several buttons on the water heater: switch timing (time 1 time 2 peak valley price), conversion (single double power), model (general MES set, timely heating), regulation. The temperature is 45 degrees, and it also shows "heating", but the actual temperature has been ten degrees, that is, the water is not heated. The tap is open and the hot water is only cold water. The water is abundant.
Today, when the circuit board was removed, a small light was added. When the water was boiled, it was bright, and when it was out of temperature, it was similar to heating in time. There was no button. It seems that the circuit board is out of order, although it shows the heating, but it doesn't control the heater work.
It shows that the electric heater of water heater is good. Turn off the water heater and see if the speed will slow down. You don't have to increase the speed, so you'll have to switch on the heater
The easiest way to check: you turn on the switch, increase the temperature, and see the speed of the meter turn fast, wow (the indicator light is fast), if it turns fast
