Faults that the UBA does not display
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Subject to modifications resulting from technical improvements!
Buderus Ltd. • http://www.buderus-domestic.co.uk
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Servicing manual for wall-mounted condensing gas boiler 600 Series 11S/19S/24S/24C • Issued 02/2006
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Faults that the UBA does not display
Hot-water mode
Although the UBA is apparently ready for use, situations may
arise where a hot-water tap is opened and no hot water flows
out, or flows out for only a short period.
Troubleshooting flow diagram:
page 43/44.
Heating mode
Although the UBA is apparently ready for use, and the room
temperature has not yet reached the preset level, the
600 Series 11S / 19S / 24S / 24C wall-mounted condensing
gas boiler fails to go into heating mode.
Troubleshooting flow diagram:
page 45.
