IDEAL HE15 Installation And Servicing page 46

71 L.....F....... (FLAME ERROR)
If the boiler reset button is
pressed does the boiler ignite for
a short time then extinguish?
YES
Check the detection electrode and
associated harness for:
continuity, visual condition, position
(Refer to Frame 56).
Replace as necessary.
Replace ignition electrode and associated
Note. Due to the wave form of the rectified voltage the reading will vary, depending on the type of meter used to
measure the value (some may measure the possible peak voltage of 339V). In general terms, a reading greater
than 150V indicates that the correct voltage is supplied to the gas valve. As an alternative to a multimeter a
mains checking device may be used. E.g. an electrical screwdriver or a mains tester.
72 L.....E...... or
Internal fault within the PCB
46
FAULT FINDING
NO
Check spark generator and associated
harness for continuity and visual condition.
Refer to Frame 57. Are these functioning
Check the ignition electrode and associated harness for:
continuity, visual condition, position
Are these functioning correctly ?
NO
harness as necessary
H.....E...... (BOARD ERROR)
Is gas pressure available at
the boiler inlet ?
YES
Is 200V DC supply available
at the gas valve ?
YES
correctly?
YES
(Refer to Frame 55).
Replace gas valve
Press and hold reset button for 2
seconds. Does boiler operate
correctly?
NO
Turn boiler off and wait for 5
seconds.Turn boiler on.
Does boiler operate correctly?
NO
Replace PCB
NO
Check gas supply
and rectify fault
NO
Check gas valve
wiring for
continuity
Replace PCB
NO
Replace
spark generator
Check syphon
and condensate
drain pipework
YES
for blockage
YES
OK
YES
mexico HE -
Installation & Servicing
OK