Paragon 2000 Plus Turbo Manual Owner's Manual page 40

FAULT FINDING CHART
Press & release fan 'ON
switch and observe light.
On pressing switch did
red light illuminate?
YES
When switch was
released did red light
remain illuminated?
YES
Does fan operate?
YES
After a short time
(approx. 5-10 sec.) is red
light on fan control
extinguished?
YES
As red light extinguishes
does fan speed reduce?
YES
Operate gas control. Is
gas available at pilot?
YES
Does oxy-pilot light?
YES
On releasing control knob
does pilot remain alight
after holding in
approx. 20 sec?
YES
While the fire is alight
press the fan control OFF
switch. Is the fan turned
off?
YES
Is gas too oxy-pilot shut
off?
YES
Appliance control system
OK?
Check mains supply (see
Mains
supply OK?
NO
Replace faulty fan control unit.
Check
NO
operation. (Pressure Switch
Check. Is pressure switch
OK?
NO
Check fan operation (see Fan
Check). Is fan OK?
NO
Is flue pipe outlet clear of
restriction / blockage?
NO
Correct fault/replace fan unit.
NO
Correct gas supply fault.
NO
Correct
system.
Remove thermocouple leads
from the fan control unit and
NO
insert test leads. With the
meter set on low ohm scale
for
operate the ON switch. Does
meter
0.5ohms?
Replace oxy-pilot / gas control
as appropriate.
NO
Check
NO
replace faulty fan control unit.
Replace faulty gas control.
Check). Is mains
YES
YES
pressure switch
YES
YES
fault with ignition
read less than
YES
fan wiring and/or
40
NO
Correct mains
supply fault.
NO
Correct fault
replace pressure
switch.
NO
Correct fault
replace fan unit.
NO
Remove blockage
and or restriction.
Replace faulty fan
NO
control unit.
LT5052 (ISS 5)
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