5-5 Temperature sensor
5-6 Overheating sensor
1.
Close all valves on the bottom of boiler
1.
Separate the connector of overheating sensor
2.
Separate the sensor connector from controller unit.
located in left top side of main heat exchanger.
3.
Turn and pull out the temperature sensor from main
heat exchanger, right top side.
5-7 Gas valve
1.
Close all valves on the bottom of boiler.
1.
Pull out all the connectors from gas valve.
2.
With spanner, unwind the nut of gas pipe between
2.
With +screw driver, remove the screws from the
burner and gas valve.
bottom of boiler and disassemble the adaptor from
gas valve.
3.
Separate the gas valve.
1
1
2
1
1
2
3
4
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