In the case of electrical heating cartridges with a controlling device, this device must be installed in the same room as the radiator, as far as possible, such that there is a visual contact to the heating cartridge. Radiators with electrical heating cartridges in central heating systems must always be completely filled with water and de-aerated. For rectifying a fault, you can briefly (for about 30 sec.) interrupt the mains supply (mains plug, safety cutout, fault current switch) and if required, replace the batteries in the control device. You can test the working of the socket easily with any other load (e.g. a hair dryer).
Please see our instructions in the operating manual. If, after the tests, the electrical heating cartridge does not work, please contact your specialist dealer. Back to top
To make expansion of the heating fluid possible upon heating, the radiator is not completely filled with heat conducting medium. The air collects in the upper elements. It is therefore completely normal that the radiator does not become quite so hot in the upper area. The radiator and the rating of the immersion heater are exactly matched to one another. The heat output is thus always ensured.Back to top
No, the radiator is filled with heat conducting medium at the factory. No fluid may be removed and none added.Back to top
Never. Should there be any suspicion of missing fluid, please contact your specialist dealer immediately.Back to top
Zehnder has many models for electrical operation. Additional information can be found in the section "Electric Radiators".Back to top
Yes. Zehnder has several models for the so-called mixed operation mode. Your specialist dealer will be happy to provide you with further information.Back to top
