Bosch ZSB 30-2 A, Инструкции по установке и обслуживанию

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70 | Fault mode
6 720 644 143 (2010/09)
17.3 Faults that are not shown on the display
Appliance faults Remedy
Combustion noise too loud; rumbling noises
B
Plug in boiler coding card correctly; replace if required.
B
Check gas type.
B
Check gas supply pressure; adjust if required.
B
Check flue gas system; clean or repair if required.
B
Check gas/air ratio in the combustion air and flue gas;
replace gas valve if required.
Flow noises
B
Set pump stages or pump characteristic maps correctly and
match to maximum output.
B
Set pump mode correctly.
Heat-up takes too long
B
Set pump stages or pump characteristic maps correctly and
match to maximum output.
B
Set pump mode correctly.
Flue gas readings incorrect; CO levels too high
B
Check gas type.
B
Check gas supply pressure; adjust if required.
B
Check flue gas system; clean or repair if required.
B
Check gas/air ratio in flue gas; replace gas valve if required.
Ignition too harsh, poor
B
Check gas type.
B
Check gas supply pressure; adjust if required.
B
Check power supply.
B
Check electrodes with lead; replace if required.
B
Check flue gas system; clean or repair if required.
B
Check gas/air ratio; replace gas valve if required.
B
For natural gas: Check external gas flow limiter; replace if
required.
B
Check burner; replace if required.
Set flow temperature (e.g. of the FW-100
controller) exceeded
B
Switch OFF automatic cycle block, i.e. set value to 0.
B
Set the required cycle block, e.g. standard setting of 3
minutes.
Condensate in air box
B
Insert diaphragm in the mixing facility as per installation
instructions; replace if required.
DHW temperature is not reached (ZWB)
B
Plug in boiler coding card correctly; replace if required.
B
Check turbine; replace if required.
Heatronic is flashing (i.e. all keys, all display
segments, burner indicator etc. are flashing)
B
Replace fuse Si 3 (24 V).
Set room temperature not reached
B
De-areate the hydronic system.
B
Check the thermostatic radiator valves
B
Check the demand from the controller
B
Complete air purge (service function 2.C).
Table 28 Faults not shown on the display