Radiator: thermostatic valve clogged or calcified?
It's mid-November and it's getting surprisingly cold. Then turn the thermostat of the central heating on level 5 and it happens ... nothing. Brrrrr, what to do?
Unscrew the thermostat head and use the janitor's tip: Use a powerful hammer to shoot the small nipple of the control valve. Goes well for a year or two - yes, and then it knocks in the entire tenement as in the US jail. Everything gets warm from hammering, but the stove stays cold. Hammering is until the steel nipple of the control valve finally aufgefilzt crooked.
The solution: Remove the brush head from the ultrasonic toothbrush (if available, otherwise provided). Use a combination pliers to clamp the steel nipple of the valve and the steel axis of the toothbrush so that the two axes are firmly in contact with each other. Turn on the toothbrush, let vibrate for about a minute.
After only a few seconds, the limescale, rust and dirt crackle audibly in the valve and are flushed on. The valve will be warm over the next 50 to 60 seconds, warmer, hot, scalding ... ready.
