1. If the solar water heater is not used for a long time, it is necessary to drain all the water from the water tank, cut off the power, then remove the heat collecting tube and wrap the empty. Tube with a dry blanket or quilt to avoid sun damage.
2. If you do not use the solar water heater in winter, you can drain all the water from the water tank and empty the pipes to prevent freezing. If you find that the pipes are frozen, you can use a hair dryer or towel to melt the ice.