Mark Infra 13, Technical Manual

Page: 11 / 128

11
EN
6.0 Troubleshooting diagram.
Yes
Yes
Yes
Is there power
supply (230V)
between terminals N
and L1? Check the main fuse
and if present the
operation switch.
1. Fuse is faulty
2. Separation
transformer is
faulty (if present)
Yes
Yes
No
No
No
Yes
no
No No
No No
Yes
No
Yes
Yes
Yes
Yes
Yes
Yyes
No No
No
No
Yes
Yes
Is there power
supply between
terminals 2 and 3?
Is the flue fan
working?
Does the air
pressure switch
come on?
Is there ignition after
max. 60 sec. purging? Is the failure lamp
on?
1. Ignition cable is broken.
2. Ignition electrode is dirty or not
correctly
adjusted.
3. Automatic ignition control is
faulty.
1. No gas
2. Air in the gas pipeline
3. Gas valves do
not open.
1. Automatic ignition
control
is faulty.
2. Gas valve is faulty.
Is there a flame
available?
Is the failure lamp on? Is the air pressure
switch in the rest
position?
Flue fan is faulty.
1. Air pressure switch
is
faulty.
2. Measuring pipe is
clogged.
Automatic control is
interlocking.
1. Measuring pipe is
clogged or in the
wrong
position.
2. Too much
resistance in the
flue
system.
3. Bend seal is faulty.
Does the flame
continue to burn?
Burner is in
operation!
Does the heater fail? Flame chokes as a
result of incorrectly
fitted or incorrect gas
flue system.
Is the appliance
properly earthed?
Is the ionisation
current greater than
3
m
A?
Check wiring and
adjustment of the
ionisation electrode.
Automatic ignition
control is faulty.
Phase and zero have
been exchanged?