Dunkirk Helix VX Vertical Laser Tube Wall Hung Stainless Steel Modulating Condensing Boiler - Manual (Page 55)

55
13 - TROUBLE SHOOTING
Is
fi
le
d
So
ur
ce
d
LWCO
installed?
NO
YES
Install LWCO wire t
o low
Vo
ltage terminal strip LWCO
connectio
ns.
Check
low v
oltage
ter
minal
strip
connections. V
er
ify J16
connector
is
connected. V
er
ify
continuit
y between
low
voltage
ter
minal strip L
WCO connections
an
d
J16-1
an
d
J16-4.
Continuit
y?
D
isconnect L
WCO f
rom
low
voltage
ter
minal
strip
. Check f
or
continuit
y through
LWCO
saf
et
y
circuit. Continuit
y?
Check LWCO per manufacturer's instructions repair
or replace.
NO
YES
Replace Wire Harness
NO
YES
Replace Cont
ro
l Mo
dule