Installation Manual
Wall hung storage boiler Low NOx – Cod. 99960NA – November 2002
19
MALFUNCTION
POSSIBLE
CAUSE
SOLUTION
1
Light 6 (fig.2) is on but nothing works.
a.
water pressure switch
b.
water pressure below 0.5 bar (light 14 fig. 2
flashing).
c.
RAMIRE circuit board damaged
a.
replace it
b.
load water
c.
replace it
2
Light 6 (fig.2) is on, the circulation pump
is running, but the flame does not ignite
d.
RAMIRE circuit board malfunction
e.
broken sensors (lights 10 or 11 fig. 2 flashing)
f.
gas valve failure (light 2 fig.1 on)
g.
ignition unit broken (light 2 fig.1 on)
h.
electric fan does not work (light 9 fig. 2 on)
i.
air switch does not work
j.
gas turned off (light 2 fig. 1 on)
k.
modulator regulated to below minimum (light 2
fig.1 on)
l.
ignition electrode broken (light 2 fig.1 on)
m.
ignition electrode wire detached (light 2 fig.1 on)
n.
limit thermostat broken or wrongly calibrated
(light 2 fig. 1 on)
d.
replace it
e.
replace it
f.
replace it
g.
replace it
h.
replace it
i.
replace it
j.
open gas cock
k.
adjust it
l.
replace it
m.
re-connect it
n.
replace it
3
Light 6 (fig.2) is on, the circulation pump
is running , the flame ignites but goes
out after 10 seconds
o.
flame ionisation electrode broken (light 2 fig.1
on)
p.
flame ionisation electrode wire detached, broken
or damp (light 2 fig.1 on)
q.
ignition unit broken (light 2 fig.1 on)
r.
LIVE - NEUTRAL polarity inverted (light 2 fig.1
on)
s.
no earth connection (light 2 fig.1 on)
t.
power supply (LIVE - LIVE) (light 2 fig.1 on)
o.
replace it
p.
re-connect or replace it
q.
replace it
r.
change over polarity
s.
make earth connection
t.
fit conversion kit
4
Boiler on, temperature rises rapidly and
extinguishes flame (light 2 fig.1 on)
u.
circulation pump burned out or blocked
v.
air in system
w.
flowswitch jammed open
x.
heating system turned off
u.
unblock or replace it
v.
bleed system
w.
unblock or replace it
x.
open heating system cut-off valve
5
Noise as flame ignites
y.
ignition electrode wrongly positioned
z.
RLA trimmer set too high
aa.
modulator minimum too high
bb.
dirty main burner
y.
check the distance between burner and
electrode is 2.5-3 mm.
z.
adjust it
aa.
adjust it
bb.
clean it
6
Boiler ignites but goes out when
temperature is reached without
modulating
cc.
modulator tube blocked
dd.
modulator only calibrated at maximum
ee.
RAMIRE circuit board breakdown
cc.
unblock or replace it
dd.
re-calibrate
ee.
replace it
7
Boiler on (light 6 fig.2 on), selector
switch 1 (fig.1) set to Winter, but
radiators do not heat up
ff.
diverter valve blocked or broken
gg.
valve VC 6012 connecting wires wrongly
positioned
ff.
unblock or replace it
gg.
connect wires correctly
8
Boiler on (light 6 fig.2 on), but gas
pressure at burner is always at
minimum
hh.
broken modulator coil
ii.
RAMIRE circuit board breakdown
jj.
MAX. HEATING trimmer at minimum (only on
Winter setting)
hh.
unblock or replace it
ii.
replace it
jj.
make adjustments
9
No hot water when tap is turned on
kk.
cold water entry pressure below 0.3 bar
ll.
dirty cold water entry filter
mm.
microflowswitch broken or piston demagnetised
kk.
increase pressure
ll.
clean filter
mm.
replace
1
2
3
4
5
12
60
7
SELF-DIAGNOSTIC
6
8
30
9
16
40
10
50
11
ELECTRONIC WATER
PRESSURE GAUGE
70
80
13
1
14
1.5
15
Fig. 1
Fig. 2
Summary of Contents for RMAS 21 E
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