VIDEO: How to change the heating thermostat correctly

Changing the heating thermostat - this is how you regulate it

You will quickly notice when the time to change has come. Your heating thermostat should be replaced when the radiator, although it has been set to "0", no longer cools down, but a certain amount of warmth remains. Even if it doesn't get really warm, even at the highest level, as you are used to this is a sign that the heating thermostat is no longer doing its job can.

Unfortunately, there is still no uniform standard for heating thermostats. So you cannot get a spare part in advance unless you can clearly identify the make. As a rule, however, you will have to get a suitable model with the removed controller as a sample from a specialist retailer.
To remove the defective heating thermostat, please set it to the highest level, which should be level "5". If at all possible, try to put a rag or the like between the pliers and the parts to be screwed on whenever you need to use the pliers. Usually the screw rings that have to be loosened, which connect the thermostat head to the valve, are chrome-plated and water pump pliers could leave clear marks there.
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Now loosen the screw ring, in most cases you can then pull out the heating thermostat very easily. Some series have a clamping device, but this can be easily overcome by pulling out the defective heating element. When removing, pay attention to how the old thermostat was plugged in, some only click into place correctly in a certain position. Remembering these could be useful for you when installing the spare part.
If you have now obtained the new heating thermostat, set it to the highest level again before installing it. If you had to pull the old thermostat out of its holder with one jerk, you have to Now put the replacement regulator in place with a little pressure and then secure it with the screw ring to tighten. With the model without clamping device, it is done with the correct positioning and tightening of the screw ring.