Heater Operating
TROUBLESHOOT ENDS.
No
Trace fault in supervision
system. See Section 16.3.
No
Ye s
Is red lockout light on?
No
Is the flame current at
least 1 µAmp DC when
the f
lame lights?
Ignition control faulty
replace.
See Section 15.6.
Is HT lead okay and
connected?
Is spark electrode okay?
Ye s
Replace valve.
Is the gas valve operating?
To test valve,
see Section 15.4.
No
Does the flame light?
No
Ye s
Wait 30 - 40 seconds.
Is ignition spark operating?
No
Ye s
Flue fan faulty replace
Burner control faulty or plug
in connections faulty. Repair
or replace as necessary
Check for too much flue/air inlet
duct. Check for blockage in
combustion air circuit.
Check for faulty air pressure
switch. See section 16.5.
Does air pressure switch
change over?
No
Ye s
Has the thermostat limit
ther
modisc operated or light
faulty? Reset or replace as
necessary.
Is 230 V supply at fan
connections?
Does flue fan run?
No
Are external controls on?
Ye s
Ye s
Is the green light on?
No
Ye
s
Is red lockout light on?
No
Ye s
Press in lockout reset button
on r
ear of heater or remote
reset button if fitted.
Turn on supplies.
Are gas & electrical
supplies on?
Ye s
Start
No
Ye s
No
If problems persist, contact
ROBERTS GORDON
®
at
Tel: +44(0) 121 506 7709
www.rg-inc.com
To
me asure flame current, connect a 0 - 50 µA DC meter in
series with the flame probe. If the meter reads negative
values, then reverse the test leads.
Conduct Commissioning procedure as shown
on Page 25, Section 12.
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