Daikin EBLA04E V Series, Руководство по обслуживанию, Страница: 82 / 324

3 | Troubleshooting
Service manual
82
EBLA04~08E + EDLA04~08E
Daikin Altherma 3 M
ESIE22-09 – 2022.05
3.4.3 Tap water related
Symptom: High water pressure at tapping point
Root cause category: component – mechanical
Possible failure Root cause Check Repair
Safety valve water side
blocked. Component failure. Check safety valve. If required, replace safety
valve.
Field installed pressure
reducing valve problem. ▪ Pressure reducing valve
(to reduce pressure of
the main water supply)
NOT installed,
▪ Pressure reducing valve
problem.
Check water system
pressure before and after
the water pressure
reducing valve. Install or replace water
pressure reducing valve.
Symptom: Tap water has white colour
Root cause category: installation
Possible failure Root cause Check Repair
Extreme formation of
anode residue. Water quality and
composition of the water
(chlorides, conductivity)
can lead to accelerated
reduction of the anode in
the tank and
aluminiumhydroxides will
be formed on the bottom
of the tank. (Remark: a
NOT well controlled water
softener can cause an
increased amount of
chlorides in the water.) Visual check for
aluminiumhydroxide
residue is ONLY possible
with endoscope. ▪ Drain and flush the tank
to
remove the
aluminiumhydroxides,
▪ Check correct setting of
field
supplied water
softener (if installed).
INFORMATION
ONLY for optional third party water tank with anode. See addendum book for
impressed current anode system for further troubleshooting.
Symptom: Tap water has bad odour
Root cause category: installation
Possible failure Root cause Check Repair
Water circuit - bad odour
of supply water. Bad quality/contamination
of supply water. Check the water quality
(odour/contamination) at
cold domestic water inlet. Assure that quality of
entering water is OK.
draft – 31/05/2022 15:53