Servicing Instructions; Replacement Of - Ariston ecoCOMBI 27 MFFI Installation And Servicing Instructions

6. SERVICING
INSTRUCTIONS
6.1. R
EPLACEMENT
P
OF ARTS
6.2. T G G
O AIN ENERAL
A
CCESS
A
B
To ensure efficient safe operation, it is recommended that the boiler is
serviced annually by a competent person.
Before starting any servicing work, ensure both the gas and electrical
supplies to the boiler are isolated and the boiler is cool.
Before and after servicing, a combustion analysis should be made via the flue
sampling point (please refer to the Installation Manual for further details).
After servicing, preliminary electrical system checks must be carried out to
ensure electrical safety (i.e. polarity, earth continuity, resistance to earth and
short circuit).
The life of individual components vary and they will need servicing or
replacing as and when faults develop.
The fault finding sequence chart in chapter 2 will help to locate which
component is the cause of any malfunction, and instructions for removal,
inspection and replacement of the individual parts are given in the following
pages.
All testing and maintenance operations on the boiler require the control panel
to be lowered. This will also require the removal of the casing.
To lower the control panel and dismantle the front part of the casing,
proceed as follows:
1. Unscrew screws "A" (F
2. Unscrew the screws "B" (F
lifting it.
F . 6.1
IG
A
F . 6.2
IG
B
. 6.1) and rotate the control panel forward;
IG
. 6.2 + F . 6.3) and unhook the front panel by
IG IG
F . 6.3
IG
31