Concord ESi -
Installation and Servicing
35
SERVICING
54
SERVICING
(to be performed by a CORGI registered installer)
The burner and the heat exchanger must be cleaned regularly in order to ensure their efficiency.
Cleaning is recommended at least once a year or more if necessary.
WARNING
Always turn OFF the gas supply at the gas cock and disconnect the electricity supply to the appliance BEFORE
servicing or replacing any components.
7
1
8
9
3
4
5
2
13
11
12
13
10
6
-
CON5300
55
CLEANING THE BURNER
Removing the burner:
-
Disconnect the power supply to the boiler.
-
Isolate the gas supply.
-
Remove the lower boiler panel
1
.
-
Remove the intermediate boiler panel
2
.
-
Disconnect gas valve connector
3
and gas pressure switch
connector
4
located under the control panel.
-
Disconnect ignition transformer circuit
5
.
-
Disconnect ionisation cable
6
as well as the earthing wire
on the ionisation probe side.
-
Unscrew the pipe union
7
on the gas inlet pipe.
-
Unscrew the 4 burner drawer fastening nuts
8
.
-
Remove the burner drawer
9
.
Cleaning the main burner:
-
Clean the burner rails (slots) using a soft brush or a
vacuum cleaner.
Cleaning the ignition burner:
-
Disconnect the ignition burner gas supply pipe
10
using a
13mm spanner.
-
Clean injector
11
, ignition burner
12
and flame tube
13
located inside the ignition burner.
DO NOT USE A METAL BRUSH
SER
VICING
