7
Provided the system is still calling for heat, the burner will then
operate and commence another start cycle.
Persistent lockout indicates a fault and an engineer should be
called, so do not attempt to repeatedly restart the boiler.
Your Worcester Bosch pressure-jet boiler is set to burn 28-
second kerosene fuel. Some appliances can be converted to burn
35-second gas oil. If this conversion has been made your installer
will inform you.
PLEASE NOTE: Low-level discharge appliances MUST NOT
be used with 35-second gas oil.
Many calls made to Worcester Heat Systems to report boiler
faults or breakdowns prove to be false alarms, as there is often a
simple explanation for the apparent malfunction.
So, to help you save time and money - not to mention
frustration and inconvenience - a quick-reference fault finder is
included on page 8.
If, after checking through the points suggested, there is still a
fault you should call your Worcester Heat Systems Service Centre.
Arrangements will be made for an engineer to call as soon as
possible.
CALL-OUT CHARGES
All of Worcester Heat Systems’ field service engineers are
factory trained.
If you request a visit from an engineer and your boiler has been
installed within the last 24 months, no charge will be made for
parts and/or labour providing:
● The appliance was commissioned correctly on installation
and a completed Guarantee Registration card returned to
Worcester Heat Systems.
● An appliance fault is found and the appliance has been
installed within the past 24 months, provided that the first
annual service has been carried out on a boiler which is more
than 12 months old. Reasonable evidence of this must
be supplied on request.
FUEL
FAULTS & BREAKDOWNS
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