Table of Contents
Advertisement
1.4
Technical data
For detailed technical data see sections
"Technical Data" on page 26 or page 28.
1.5
Operation lights
Three lights (10 in Fig. 1.3) give detailed in-
dication regarding the operation of the boiler.
The following table gives the relationship
between each of the possible light combina-
tions and their meaning.
A short pulse every 4 sec-
onds: stand-by condition.
Function selector in
position.
Anti-freeze system active
1 second pulse every 2
seconds:
erating boiler. Function
selector in
sition
C.h. operation
D.h.w. operation
Frost protect operation
D.h.w. operation
Excessive
on primary circuit
If the lights combination observed is not
included in the above table a fault may be
indicated.
Reference should be made to the following
table.
In this case switch off the boiler, as de-
scribed in section "Extinguishing" to page
13 and call a competent and responsible
Service Engineer.
APPLIANCE DESCRIPTION
normally
op-
or
po-
temperature
Faulty c.h. temperature
probe NTC
Faulty d.h.w temperature
probe NTC
Faulty primary circuit (no
water or absence of flow)
Lack of burner ignition
Safety thermostat lock
out
Faulty fan control system
Flue temperature probe
NTC lock out
Open flue temperature
probe NTC
Faulty
probe (if fitted)
Flame detection error
Other faults
Lack of power supply or
fauly electr. control p.c.b.
Meaning of symbols:
Lamp OFF
Lamp ON
Flashing lamp, alone or simultane-
ously with an other lamp
Flashing lamp, alternate with another
lamp
external
temp.
- 9 -
Advertisement
Table of Contents
