Stovax PR0731 Electric Heater User Manual


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17
SERVICING INSTRUCTIONS
FAULT FINDING CHARTS
IGNITION FUNCTIONAL CHECK 2
NOSPARK
Ensure there is no debris around the pilot assembly,
(e.g. soot etc.) which could short the spark, clean the area.
Consult the users
instructions, retry.
From Ignition Fault
Finding Chart 1
Is the gap between
electrode and
thermocouple 4.0mm?
Has ignition lead
become detached or is
connection poor?
Remove the electrode lead
andelectrode.Withinsulated
pliers. Hold the tip 4.0mm from the
pilot pipework, is there a spark
when the system is operated?
Has the ignition lead
become detached from the
control box?
Replace the lead, retry.
Correct and retry.
CheckhandsetbatteriesareOK.
Replace if required. Check handset
is on manual. Check if handset lock
is off. Check batteries to the control
unit. Replace if required. Retry with
handset and touch pad.
Is the valve being
operated correctly?
Check tab on pilot burner is
not damaged. Either repair
tab or replace pilot burner &
retry
Yes
Yes
Yes
No
No
No
Yes
Yes
Yes
No
No
No
Replace the electrode.
Reconnect the lead and retry.
Yes
PILOTWILLNOTSTAYLITORFIREGOESOUTINUSE
Ensure there is no debris around the pilot assembly,
(e.g. soot etc.) Check for fluff in the pilot aeration hole.
See the Diagram in the Replacing Parts section.
Problem is with the
pipework or
fittings which lead
to the fire. Correct
and retry.
Is thermocouple
connection good
in back of valve?
Replace pilot unit.
Willpilot
stay alight?
Change mag
unit.
Is the pilot flame of the
correct length? Are the
thermocouple leads
damaged or loose in the
interrupter block? Is the
ON/OF switch in the ON
(I) position.
Change the pilot unit
or damaged
thermocouple leads
Willpilot
stay alight?
Withthepilot
running is the gas
pressure as stated on
the databadge?
Withthefirerunning
on full is the gas at
the pressure stated
on the databadge?
Run for 3 mins,
turn off, time interval
until mag unit shuts
with a click. Is this
greater than 7
seconds?
Run for 3 mins, turn
off, time interval until
mag unit shuts with a
click. Is this greater
than 7 seconds?
Tighten the
connection and retry.
No
No
No
No
No
Yes
SYSTEM OK
Yes
Yes
Yes
Yes
No
Yes
No
Light the pilot using either the handset or the touch pad
FLAME FAILURE FUNCTIONAL CHECK 3
Is the flue working?
Rectify flue
No
No
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