6.¿Cuál es la razón de los ruidos anormales?

Possible fault sources:

a.Pump filter is clogged

b.Overflow valve works abnormally

c.Pump sounds are sometimes low and sometimes high.

Recommended solutions:

a.Clean the pump filter

b.Maintain or replace the overflow valve

Processing method is the same as that for “flow rate is sometimes high and sometimes low”