How to properly turn off the water heater and turn on hot water

The water from the water heater is drained before the shutdown period. You need to know how to turn off the boiler correctly in order to extend the life of the tank and the heating element. You can drain the liquid by gravity, close the taps, connect the pipes, but 1-2 liters of water will remain in the unit, which will contribute to the appearance of rust. In these cases, the removal of the water heater is required.

Tools and materials when turning off the boiler

You will need a variable size adjustable wrench with movable tool steel jaws to disconnect the nozzles. A wrench is used to unscrew the bolts fastening to the partition. No tool is needed if the boiler is hanging from hooks.

A hose is being prepared for the return valve or for the fluid inlet. Use a Phillips screwdriver to detach the safety cap. Flat (slotted) screwdrivers are needed to pry it off and pull it out of a tight socket.

Boiler shutdown instructions

Before emptying the boiler, preparatory work is carried out.

1. De-energize the unit. The plug is pulled out of the socket or the machine is turned off. An indicator screwdriver is taken and the presence of electricity on the contacts is checked.
2. The water supply tap in the apartment closes. If this is not the case, the flow of liquid is stopped by a valve in the basement.

The boiler can only be emptied of water after it has cooled down. After turning off the electrics, you need to wait for the liquid to cool. Then the pipes are removed from the boiler through which the water supply is carried out.

Long-term shutdown

Sometimes you need to turn off the boiler for the winter and drain the water. Microorganisms multiply in liquid without heating. If the unit is located in an unheated building, the water will freeze and the boiler tank will burst. It is recommended to turn off and dismantle the heater if the unit is to be changed or the room is finished.

Boiler shutdown sequence:

1. stop heating by turning off the heater from the network;
2. turn off the taps for the supply of cold and warm liquid to the unit, the water will remain in the tank and will not drain;
3. open the non-return valve on the body.

Sometimes there is an auto-valve that provides water supply to other rooms in a rigid type wiring.

Disconnection with dismantling

The boiler must be turned off and removed from the partition. It is impossible to dismantle a boiler in which the tank is filled with liquid inside; it is imperative to drain it in order to reduce the weight of the tank.

The procedure for draining and dismantling:

1. close the valve on the hot pipe;
2. substitute a drainage vessel or direct the sleeve into the bath;
3. disconnect the joint between the cold riser and the protective hydraulic valve;
4. unscrew the nut connecting the valve with the union of the cold line;
5. regulate the flow by opening the valve;
6. the water will go out in a few minutes.

It is not difficult to remove the unit if it is located on hooks. Dismantling requires care so as not to damage parts.

Switching off and on hot water

The city highway can work again, then you can turn off the boiler if hot water was given. The plug is removed from the socket and the contents are cooled. You can drain half of the liquid and add cool to make the process go faster.

For the drain, the tap on the cold pipeline is closed and the corresponding branch pipe is disconnected. A hose is put on the free end and placed in the sink. The valve is unscrewed and the drain valve is opened. The water mixer swivels to the hot position. After that, the supply valve from the city water supply line is turned on.

Reasons for shutting down the boiler and recommendations for self-de-energizing

The preservation of the unit is carried out when the temperature in the house drops below + 5 ° С. Do not leave the heater without water for a long time, as oxygen is corrosive. Regular use of the unit also requires periodic cleaning to remove rust.

Scale works as a heat insulator and neglect of cleaning results in the heater heating itself and the rust layer. This increases the consumption of electricity by about a quarter. Manufacturers recommend draining the water once a month, then turning it on again.

Water interruptions

Sometimes the water utility warns of problems with the supply on a certain branch of the water conduit. If this will last for a long time, it is better to drain the flow through a protective throttle, which is needed to drain when the internal pressure in the tank rises.

Stop feeding into the house. Twist the sleeve from the hot outlet to organize the flow of air. The handle on the valve is opened, a stream will flow from the spout. Drain into the toilet or bath, if you put a hose on the spout. So the drain lasts a long time, more than two hours, the time depends on the clogging of the spout.

Lack of hot water

Sometimes a tee with a valve is cut into the safety valve on a section of the tube.

Algorithm of actions:

• turn off the network, cut off the supply, open the tee valve;
• open the hot line tap on the mixer, the flow will go through it;
• the valve on the tee is not closed so that air flows;
• the shut-off valve is closed after the end of the drain.

The procedure takes several hours. Accelerated by removing the sleeve from the cold feed tube.

The quick drainage method is by means of two nozzles. The cold and hot branch is sequentially disconnected. The liquid leaves the two nozzles at the same time, the tank is emptied quickly. With such a drain, there is no control of the flow rate, so the method is used if the boiler is hanging over the bathroom.

Boiler breakdown

At first (about two years), the structure does not require maintenance, then signs of poor-quality operation of the unit appear. The water takes on a rusty hue, sand and scale particles are present. If the tap liquid is of poor quality, cleaning will be required much earlier.

Landmarks indicating the need for prevention:

• The heating element starts to make noise when turned on;
• the device turns on and off more often than usual, the fuse is triggered;
• the heating time increases;
• during use, it shocks, the case leaks.

The cover is removed after unscrewing the bolts near the fittings, the power supply diagram becomes visible. The thermostat is located here, which is removed with a sharp downward movement.

Features of switching off various boiler models

Sometimes the manufacturer does not allow the user to turn off the boiler, otherwise the warranty period will expire. Each model has its own characteristics that you need to know in order to drain yourself.

Ariston

First, the plug at the top of the mixer is screwed on and the cold branch, the water mixer taps are closed, the shower hose is removed.At the outlet and inlet, the valve is removed, and plastic nuts are screwed on. After removing the cap on the mixer, the screw is unscrewed, the handle and gaskets are removed.

The boiler body is detachable from the container inside, but cannot be removed. Open the plug, and a drain occurs through the hole that appears. To allow air to flow, the valve does not close.

Termex

To properly turn off the Termex boiler, you need to remove the touch screen. The cable connects the control and the external board, it is disconnected from the power module and a thin 1.5 meter cord is connected. After that, the sticker of the touch screen is removed, the panel of the display device on the self-tapping screws becomes visible.

The hardware is unscrewed, the module and cable are removed using a cord. The heating element is mounted on one nut, which is unscrewed counterclockwise.

Electrolux

Drainage is done through a standard hole in the safety valve or a pre-cut tap is used. The cold water supply and power supply are cut off. A pipe is placed at the level of the drain sleeve, through which the liquid flows. The hose fits into a sink, tub, or toilet.

Others

Boilers of the Gorenje brand are discharged according to the standard algorithm. The power supply and the tap are cut off, from which hot liquid is poured. After complete removal of water, a hose is put on the cold nozzle and led to the drain container. The cold feed valve is opened to allow air to flow, and residues are drained away.

Removing liquid from the Aquaverso brand heater is not difficult if the hitch and connection have been made correctly. The algorithm is standard - close the water, turn off the boiler, drain the liquid through the valve.