What is the Mission of Combi By Pass?
It is the part of the boiler that is in charge of evacuating the excess pressurized water in order not to damage the boiler parts at high pressure.
Why By Pass Fails?
The resulting residue may malfunction due to the breakage of the plastic parts due to lime or the deterioration of the spring.
What Problems Occur When By Pass Fails?
Hot water failure is usually experienced in by-pass problems. Apart from the by-pass inside the combi, some combi boilers have an external by-pass line. When this by-pass fails, the boiler may make noise and may not be able to run hot water at low pressure.