"The radiator does not get warm despite venting"

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Your radiator does not get warm - despite venting? Then it could be due to a stuck valve. Here's what you can do.

Heat economically through ventilation
Heat economically through ventilation

What you need:

  • screwdriver
  • Wrench
  • tongs
  • Little hammer

Radiator does not warm up - causes and troubleshooting

Your radiator does not warm up - despite venting - and you don't know what to do next? Then check the valve. Sometimes things get stuck and the heating doesn't work. Proceed as follows:

  1. Take off the thermostat. In most cases, it is sufficient to jerk vigorously to the side to release the valve. If, contrary to expectations, you have problems loosening it, use a screwdriver to push the ring towards the thermostat. This makes it easier to loosen the rotary knob.
  2. If your rotary knob has a screw nut, unscrew it with a wrench.
  3. You will now see a chrome-plated pin that regulates the supply of heating water.
  4. This pin must be easy to push in and protrude about 5 mm. If it's more than 5mm in, try pulling the pin out with pliers. If you have problems doing this, carefully tap the valve from all sides with a small hammer.
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  6. Push the pen in several times and let it come out by itself. So make sure it's easy to use.

If that doesn't work, you need to consult a specialist. Then the problem is more specific and cannot be solved by you as a layperson.

Despite venting, the radiator is only partially warm

Sometimes the heater only gets warm in one place despite venting. There can be various reasons for this.

  • If the radiator is warm at the top and cold at the bottom, this is often due to insufficient flow. In this case, check the shut-off valves on the supply pipes. If this is not the problem, the connection may be wrong - especially after a new installation.
  • The same causes can exist if the heating is cold above and warm below. However, too much air can also be the problem here. Venting should then provide a quick remedy.
  • The problem “the radiator does not get warm despite venting” should be solved in this way.

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