22
5.5
C.H. MODE - FAULT FINDING
Start from cold
Rotary switch set to WINTER position.
Room thermostat (if fitted) calling for heat and all D.H.W. taps off.
C.H. thermostat set to maximum position.
Clock in the on position (if fitted).
NOTE:
After completing fault finding reset the room thermostat (if fitted) to the required setting. If the appliance will not function check the wiring
to the clock and if necessary, replace the clock.
Is there power
at the external
socket?
Make
power
available
Does
the pump
start?
Does
the fan
start?
Turn the clock
in the right
position
Is fuse
at mains
plug OK?
Is the clock in
the correct
band time?
Is there voltage
available
to the fan?
Replace
the clock
Replace fuse in
mains plug
Check the
time clock does
his contacts
open and close
when the clock
turns?
Replace
the fan
Make it free to
rotate
Put a jumper
on the room
thermostat
connection
Check the
power supply
cable
Is pump shaft
free to rotate?
Is there voltage
available
to the pump?
Replace
the pump
Check pump
connection
Does the boiler
lock-out without
starting the
burner?
The boiler
lock-out
starting
the burner
Is there a spark
at the ignition
electrode?
Is the ionization
probe connected
to the main PCB
and the ground?
Check the
gas supply
Check for continu-
ity between ignition
electrode and igni-
tion transformer
The gap between
ignition electrode
and hood
is correct?
Fit correctly the
ignition electrode
Is the gas
available?
Check the
connection of
the gas valve on
the control board
PCB
Is there voltage at
the gas valve?
Replace the
gas valve
Yes
No
Is there a jumper
on the room
thermostat
connection?
No
Yes
No
Yes
No
Yes
Yes
Yes
Yes
No
Yes
No
Yes
Yes
Yes
No
No
Yes
Yes
Yes
No
No
Yes
No
No
No
No
Yes
No
Verify that the
safety and fume
thermostats are
working correctly?
Replace the
thermostats
No
Is the
connection of
the fume and
safety
thermostats
correct?
Reset the
connection
No
Yes
Restore the
connection
Verify that the
safety and fume
thermostats are
working correctly?
No
Yes
Yes
Check the
connection of
the thermostats
Replace the
thermostats
No
Yes
Содержание ECOMFORT 30 HE
Страница 1: ...Ecomfort Installation and servicing instructions GB ...
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Страница 33: ...Ecomfort 30 HE User instructions GB PLEASE LEAVE THIS INSTRUCTION WITH THE USER ...
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