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Centrala termica Viessmann Vitopend 100 - probleme apa calda


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Am o centrala Viessmann Vitopend 100 ( de vreo 10 ani) care are urmatoarea problema: cand merge incalzirea nu trece pe apa calda. Daca nu merge pe incalzire, apa calda functioneaza corect. Cateodata trece pe apa calda chiar daca incalzirea este in functiune, dar doar pentru o perioada de timp (mai scurta sau lunga). Releele au fost inlocuite cu altele noi.

Vana cu 3 cai nu cred ca este problema fiindca daca nu este pornita incalzirea apa calda este OK, respectiv incalzirea porneste cand este nevoie, inseamna ca vana nu-i blocata. Afisajul (LED) afiseaza corect ceea ce este in functiune (caldura sau apa), dar apa calda nu porneste cand merge caldura indiferent de debitul apei la robinet.

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