Worcester 27i System Compact User Manual

FAULT FINDING AND DIAGNOSIS
Greenstar i System Compact - 6 720 807 726 (2013/05) 63
RESETTING THE TEST COMPONENT
After completing the test:
▶ Press the button, the value 1 will flash.
▶ Press the arrow button, the value will change to a flashing 0.
▶ Press to confirm the change, a will displayed for 3 seconds.
Fig. 128 Resetting test
ok
ok
max
min
max
2
3
1
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ok
eco
reset
e
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°F
t01
6720646608-80.1Wo
1.
°C
°F
Test 1
max
min
max
2
3
1
04
bar
1
ok
eco
reset
e
1.
°C
°F
t01
°C
°F
t01
max
min
max
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3
1
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eco
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1.
°F
t01
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t01
Test
t1 Igniter test.
Checking the igniter
spark.
The igniter will spark for a maximum
of 30 seconds. The spark will be
audible if the igniter is OK.
t2 Fan test.
Checking the basic fan
operation.
The fan will run for a maximum of 30
seconds.
If the fan is OK then the fan will be
heard running.
t3 Pump test.
Checking the basic
pump operation.
The pump will run for a maximum of
30 seconds.
If the pump is OK then the pump will
be heard running.
t4 Three way valve test*.
Test the operation of
the diverter valve.
When 1 is selected via the test menu
the diverter valve will move to the
DHW position. When 0 is selected
the valve will move to CH position.
t6 Ionisation oscillator
test.
Tests the flame
detection circuit.
Ionisation circuit is switched on.
Approximately 150 Volts a.c. can be
measured between the ionisation
probe and earth.
* Only available when the optional integral diverter valve kit is installed.
Table 19 Test menu

Worcester 27i System Compact Specifications

General

Brand	Worcester
Model	27i System Compact
Category	Boiler
Language	English