Opop ECOMAX 25kW User Manual page 14

Boiler hard to control, getting
overheated.
Boiler is hard to control and gets
overheated.
The fan does not work
Clogged secondary air vents to the
nozzle.
Clogged or overly contaminated
exchanger space (the combustion
process gets better once the ash pan
door is opened).
Fire clay adapting piece of the
combustion chamber (roof) not moved all
the way to the back wall of the chamber.
In this case the boiler burning is sound
yet the boiler displays a reduced power
and increased firewood consumption.
Open or stuck primarily air flap.
Excessive chimney draught –
the chimney draught spontaneously
opens the primary air flap (the flap keeps
flapping).
Open chimney flap – the boiler sucks air
in, through the secondary air duct and
burns in a way which is entirely
uncontrollable using the traditional
means.
Water does not circulate in the boiler or
heating system.
Safety thermostat failure – the boiler (fan)
is in operation despite the water
temperature exceeding 95
Closed or insufficiently opened mixing
valve.
Oversized boiler
The fan is switched off by the fan switch.
The fan is off by the operating thermostat
(within the electronic controls).
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Clean the air duct between the fan and
the nozzle. This must be done after
removal of the front fan cover and the fan.
We recommend trusting the job to a
specialised service company!
Clean the exchanger including the bottom
vent leading from the combustion
chamber to the tube sheet.
Check the position of the ceramic
adapting pieces in the combustion
chamber.
Clean and release the flap. The front
boiler cover and the actual primary air flap
need to be removed.
When fitting them back on, make sure to
centre the flap well within the air duct.
The flap axis revolves along with the flap,
and therefore, increased caution must be
exercised when tightening the securing
nuts on the flap axis.
We recommend trusting the job to a
specialised service company!
Switch the fan by the manual switch and
wait for the chimney to cool down entirely
(about 1 hour). If the boiler temperature
keeps rising, and you can still heat the
flap flapping, a draught controller needs
to be installed. May be ordered as
optional boiler accessories.
We recommend trusting the job to a
specialised service company!
Shut the chimney flap off, check for its
condition and functioning.
Check water quantity in the system,
condition of the pump and its functioning
Clean the pump filter.
Must be carried out by a specialised
service company!
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Check the function of the mixing valve.
Where necessary, disconnect the mixing
valve from the drive and perform an
emergency manual opening of the valve.
Adjust the heating system. We
recommend using storage tanks.
Turn the switch on.
Set a higher temperature on the operating
thermostat (within the electronic controls)
In the event of a thermostat failure
(electronic controls), replacement is
required by a professional service
company!
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