Benchmark RD 532 combi - Pre-Service Check List

6 720 611 451 GB (03.11)
Maintenance
35
8.1 Pre-Service Check List
Date
1 Call up the last fault stored by the
Bosch Heatronic, Service Function .0,
(see page 36).
2 Check ionisation current, Service
Function 3.3, (see page 36).
3 Perform visual check of air/flue duct.
Visual check of diaphragm for soiling
and splits (see page 38).
4 Check gas supply pressure
(see page 31).
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5 Test combustion air/flue gas
(see page 33).
6 Check CO
2
setting for min./
max. (gas/air ratio)
(see page 31).
min. %
max. %
7 Check gas and water systems for
leaks (see page 16).
8 On combi models, check hot water
outlet temperature (see page 36).
9 Check heat exchanger
(see page 36).
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10 Check burner (see page 37).
11 Clean condensation trap
(see page 38).
12 Check charge pressure of
expansion vessel matches
static head of heating system.
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13 Check central heating system
pressure.
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14 Check electrical wiring for damage.
15 Check heating programmer settings.
16 Check appliances that are part of
the heating system
Table 16