55
FAULT FINDING
FAULT FINDING FAULT FINDING FAULT FINDING FAULT FINDING FAULT FINDING
Ideal Logic Code Combi - Installation and Servicing
81
ALTERNATING ‘L’ AND ‘3’ - NO WATER FLOW LOCKOUT
isolation and radiator valves open?
Fill and vent the system and open all
across the Boiler in excess of 30°C?
NO
Check pump connection and check
Differential now below 20°C?
NO
(Refer to Frame 53)
Check resistance using a suitable multimeter
At 25
o
o
o
C expect 1,000 - 1,100 Ohms
NO
OK
Check resistance using a suitable multimeter
At 25
o
o
o
C expect 1,000 - 1,100 Ohms
Does the boiler now work OK?
82
ALTERNATING ‘L’ AND ‘6’ - FALSE FLAME LOCKOUT
Reset the boiler, does Boiler Work OK?
NO
Check routing and integrity of internal boiler
pins connected to the electrode?
Replace Flame Detection Electrode
NO
83
ALTERNATING ‘F’ AND ‘1’ - LOW WATER PRESSURE
all isolation and radiator valves open (check pressure
NO
Fill and vent the system and open all isolation valves
Are connections on water pressure sensor secure?
NO
RESET PROCEDURE
RESET PROCEDURE
NO
Replace water pressure sensor
206279-1.indd 55 06/01/2011 09:10:49
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