broag SEAGOLD 1A HR, Руководство пользователя

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11. FAULT FINDING CHART
11.1 The boiler fails to restart after a normal shut-
down
- Ensure that both gas and electricity supplies are
available at the boiler.
- The automatic control box has gone to lockout becau-
se of a fault. Press reset button on control box.
If normal start up does not occur, check whether:
• The appliance manual gas valves are fully open.
• The boiler control thermostat is set at the correct
value. After waiting for two minutes, press the reset
button again, if the boiler does not restart normally,
check as follows.
The ignition cycle should be as follows: After 10 seconds
(approx.) sparking at the pilot electrode will be heard
followed by the main burners crosslighting from the pilot.
11.2 No ignition
If there is no ignition sequence, check:
- Electricity supply isolated.
- Thermostat adjusted to a low temperature.
- Check whether the limit thermostat was activated by
excess temperature. Reset to remove fault.
(If fault persists this should be rectified.)
- Check whether the draught diverter thermostat was
activated by down draught. Reset to remove fault.
(If fault persists this should be rectified.)
- Check voltage (240 V ~) at ignition transformer termi-
nals. If no voltage is registered, the automatic control
box is faulty and should be replaced. If there is voltage,
check the position of the ignition electrode and flame
electrode setting. If spark does not occur, the ignition
transformer is faulty and should be replaced. If electro-
de setting is incorrect, replace complete assembly.
- No ignition gas at pilot burner, pilot safety shut-off valve
fails to open. Check voltage (240 V ~ ) at the terminals
on the pilot safety shut-off valve. If there is no voltage
the automatic control box is faulty and should be repla-
ced. If there is voltage, replace the valve.
- No pilot flame, pilot burner injector/nozzle blocked -
clean.
11.3 Pilot burner ignites but fails immediately
- Check the position of the flame detector probe in rela-
tion to the pilot burner. if electrode setting is incorrect,
replace complete assembly.
- Pilot flame too small - incorrect pilot burner nozzle 1 x
0.8 mm for natural gas. Or pilot burner injector/nozzle
blocked.
- Check current in the flame detector probe, removing
shunt between terminals 14 and 16 and connect a D.C.
Micro Ammeter (range 0-50
µ
A) in series. Check the
current reading with boiler operating. If reading is zero,
check Satronic Control Box. If reading is below 5
µ
A or
showing wide variations, check stability of gas flame
and state of ionisation probe.
- If the boiler does not fire, replace the automatic Control
Box.
11.4 Pilot burner ignites but gas does not reach main
burners
- Check voltage (240 V ~ ) at the terminals of the main
burners safety shut-off valves. If there is voltage, the
coil of one of the main gas valves is faulty and should
be replaced.