Standard Inspection & Maintenance Operation - Baxi EcoBlue Advance Combi 28 Installation And Service Manual

10 Maintenance
Case Front Panel
Securing Screws
Electrode
Leads
Fig. 46
Gas Feed
Pipe
52 EcoBlue Advance Combi
Control Box
removed for clarity
Condensate Trap
Gasket
Condensate Drain
Pipe Connection
Fan, Collector and
Cover Assembly
Air Box
Securing Clip
10.2 Standard Inspection and Maintenance
Operation
When performing any inspection or maintenance
personal protective equipment must be used where
appropriate.
1. Ensure that the boiler is cool and that both the gas and
electrical supplies to the boiler are isolated.
2. Remove the screws securing the case front panel. Lift the
panel slightly to disengage it from the tabs on top of the case
(Fig. 43). Hinge down the control box.
3. To aid access disconnect the igniter plug & disconnect the
two pipes from the top of the condensate trap and the drain pipe
from the trap outlet. Undo the screw & washer securing the trap
to the boiler lower panel.
4. Disengage the lip on the trap from the slotted bracket and
remove the trap. Take care not to spill any residual condensate
on the controls and P.C.B. Thoroughly rinse the trap and
examine the gasket on the trap base, replacing if necessary.
5. Remove the clip securing the gas feed pipe to the air/gas
venturi. Disconnect the pipe. Do not break the joint between the
pipe and gas valve unless necessary.
6. Note their position and disconnect the electrode leads and
the fan electrical plugs (Fig. 46).
7. Undo the four 10mm nuts retaining the combustion box cover
to the heat exchanger.
8. Carefully draw the fan, collector and cover assembly forward
(Fig. 46).
9. Clean any debris from the heat exchanger and check that the
gaps between the coils are clear.
10. Inspect the burner, electrodes position (Fig. 45) and
insulation, cleaning or replacing if necessary. Clean any dirt or
dust from the boiler.
11. Carefully examine all seals, insulation & gaskets, replacing
as necessary. Look for any evidence of leaks or corrosion, and
if found determine & rectify the cause.
12. Prime the trap and reconnect the pipes to the top.
Reassemble in reverse order.
Electrode
Position
Fig. 45
Flame
Sensing
Electrode
Spark Ignition
Electrode
Comp No. 7212138 - 02 (06/14)