SECTION 5: T
ROUBLESHOOTING
13
FIGURE 9: System Control Troubleshootin
g
Chart
Contact
Ro
b
erts-Gordon LLC
at www.rg-inc.com.
Contact
Ro
b
erts-Gordon LLC
at www.rg-inc.com.
Contact
Ro
b
erts-Gordon LLC
at www.rg-inc.com.
Contact
Ro
b
erts-Gordon LLC
at www.rg-inc.com.
Trou
b
leshoot ends.
Contact
Ro
b
erts-Gordon LLC
at www.rg-inc.com.
Does the pump turn off
following post purge period?
N
o
Yes
Do the
b
urners turn off
when the thermostat is
satisfied?
N
o
Yes
Rectify.
Do the
b
urners in the
zone come on?
N
o
Has the system
b
een
commissioned?
N
o
Yes
Is external wiring to the
zone OK?
Yes
N
o
Refer to
b
urner trou
b
le-
shooting in either the
CORAY
V
AC
®
or
V
A
N
TAGE
®
N
P
Installation, Operation and
Service Manuals.
Refer to the
b
urner start up
instructions in either the CORAY
V
AC
®
or
V
A
N
TAGE
®
N
P Installation, Operation
and Service Manuals.
Do the incorrect zone
lights or all zone
lights come on?
Yes
N
o
Are the zone thermostats
wired correctly?
N
o
Yes
Rectify.
Is external wiring to the
pressure switch OK?
Yes
N
o
Rectify.
Rectify.
Yes
N
o
Is the correct contactor
selected for the
pump?
Adjust thermostat set
point to call for heat.
Does the pump
come on?
N
o
Yes
Does the zone light
come on?
Yes
N
o
N
o
Yes
Yes
N
o
Is external wiring to the
pump OK?
Fit the correct contactor.
Is the thermostat connected
to the correct terminal at the
system control.
Yes
Replace fuse with
P/
N
10000212.
Is the line power
indicator on?
Check the power supply
to the system control
panel. Is it on?
Yes
Yes
Check the 250mA
fuse. Is it OK?
Yes
N
o
N
o
Rectify power supply
pro
b
lem.
N
o
N
o
Does the pressure switch
light come on?
Refer to
b
urner trou
b
le-
shooting in either the
CORAY
V
AC
®
or
V
A
N
TAGE
®
N
P
Installation, Operation and
Service Manuals.
Refer to
b
urner trou
b
le-
shooting in either the
CORAY
V
AC
®
or
V
A
N
TAGE
®
N
P
Installation, Operation and
Service Manuals.
Turn off power and correct
wiring.
Yes
Contact
Ro
b
erts-Gordon LLC
at www.rg-inc.com.
If control is not
w
orking properly, disconnect po
w
er to control and check for signs
of physical damage to the front and back of the circ
u
it board,
w
ater damage (cor-
rosion) or scorching. If damage is fo
u
nd, identify and rectify so
u
rce of
damage. Replace circ
u
it board (P/N 10090101), if it has permanent damage.
Summary of Contents for System Control
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