Troubleshooting - Dimplex ECSd125-580 Installation And User Instructions Manual

10.4 Troubleshooting

Fault
A No water
from hot
water taps
B No hot water
C Intermittent
water
discharge
through
tundish on
warm-up
D Continuous
discharge
E Leakage
from casing
F Hot water
from cold tap
G Metallic
noise from
system
H Humming
noise from
system
during re-
heat
Cause
A.1 Stop valve closed
A.2 Strainer blocked
A.3 Pressure reducing
valve fitted against
flow
B.1 Timer/Programmer not
set correctly
B.2 Indirect heating
malfunction
B.3 Direct heating
malfunction
B.4 Indirect/direct heating
high limit thermostat
has tripped
C.1 Expansion vessel lost
charge
D.1 Pressure reducing
valve not working
D.2 Pressure relief or T&P
valve not seating
correctly
D.3 Malfunction of high
limit thermostat or
appliance
E.1 Compression/threaded
joints not
correctly
F.1 Hot pipe work being
routed adjacent to
cold pipe work
F.2 Leaking seal in mixer
tap
G.1 Pipe work not
sufficiently supported
H.1 Air in system
H.2 Flow rate well in
excess of specification
Troubleshooting
Solution
A.1 Open stop valve
A.2 Turn water supply off, clean
strainer and re-commission
A.3 Re-fit with arrow showing in
direction of flow
B.1 Set timer/programmer
correctly
B.2 Consult indirect heating
system instructions
B.3 Call for qualified person to
check immersion heater
B.4 Reset limit thermostat(s)
and inform installer
C.1 Check expansion vessel (see
commissioning/maintenance
), top up or replace
D.1 Check pressure after valve
and replace if faulty
D.2 Manually lift valve once or
twice to clear debris,
otherwise replace
D.3 Check function of
thermostats and appliances
E.1 Re-seal joints with care
formed
F.1 Insulate hot pipe work or re-
route
F.2 Replace seals in mixer tap
G.1 Add extra pipe work fixings
H.1 Bleed system thoroughly
and re-pressurize
H.2 Reduce pump speed