KDB-GOM
Series
- 73 -
14 - 1 Others Failure
Boiler is operating normally but water overflows
toward the expansion tank
No Symptoms and Causes Solutions Reference
- There are many impurities in the heating water
of the heating pipeline and in the water pipeline
that are stuck on the water filling valve solenoid
diaphragm and water slowly flows in. replace
and clean the solenoid.
<Fig. 1>
1 The water fill valve is defective and
cannot stop water and heating water.
- Especially, in case the splitter material is
aluminum, corrosion is fast and there is
formation of much impurities. Replace with a
splitter in copper or stainless steel.
<Fig. 2>
2 Water overflows due to an internal sinking
of the hot water heat exchanger.
- If water still overflows after the checking above,
it is an internal sinking of the hot water heat
exchanger and the hot water heat exchanger
has to be replaced.
<Fig. 1>
<Fig. 2>
Check hating pipeline condition
Check splitter valve’s material
Water filling valve
Internal
diaphragm
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