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11.12.
WATER TEMPERATURE SENSOR FAULT ALARM
This alarm goes off when the sensor for detecting water temperature
is disconnected or it breaks. During the alarm state, the boiler or
thermo-stove will be turned off using the standard turn-off procedure
(see drawing D75).
In case of this alarm appears you should contact the technical
support service.
11.13.
WATER TEMPERATURE ALARM
This alarm goes off when the probe detects a water temperature
higher than 90°C. The display shows the following message (see
drawing D76):
In case of this alarm appears you should contact the technical
assistance service.
11.14.
CIRCUIT HYDRAULIC PRESSURE ALARM
It goes off when the pressure transducer detects an out of bounds
pressure, either lower than 0.4 bars or higher than 2.5 bars. The
system automatically interrupts the pellet supply and the display will
show on the screen an alarm "pressure water". Right afterwards, the
turn-off stage is activated (see drawing D77).
In the case that this alarm appears you should contact the technical
support service.
11.15.
OPEN BURNER BASE ALARM
It happens when the base of the burner remains open during the
cleaning of the burner or during the final cleaning.
If this alarm shows up, please, contact your technical support
service (see drawing D78).
11.16.
ALARM LIST, PROBLEM AND POSSIBLE SOLUTIONS
Alarm Code
Description
AL1
BLACK OUT
AL 2
SMOKE PROBE
AL 3
TEMP. SMOKE
BREAKDOWN
AL 4
EXTRACTOR
AL 5
START-UP FAILURE
AL 6
NO PELLET
AL 7
THERMAL ALARM
AL 8
DEPRESSION
AL 9
LACK OF FLOW
AL
DIRTY FLOWMETER
AL
FLOWMETER FAILURE
AL b
ENDLESS ERROR
AL
WATER PROBE
AL A
HOT WATER
AL E
WATER PRESSURE
INSTALLATION, OPERATING AND SERVICING INSTRUCTIONS
Problem
The boiler has been temporarily
without electric current.
Problem with the smoke probe.
The smoke temperature is higher
than 270ºC .
Problem with the smoke
extractor.
The fuel does not fall or burn.
There is no fuel in the hopper or
it does not fall inside the burner.
The fuel thermal security
thermostat has shot up.
The combustion chamber has a
lack of draw.
Lack of primary air or installation
not appropriate.
The Flowmeter sensor is dirty.
The flow sensor is broken.
The auger feeder spins
continuously.
Problem with the water probe.
The water temperature is high.
Problems with the hydraulic
circuit pressure. Pressure over
2.5 bars or under 0.4 bars.
54
ALARM
SENSOR
WATER
ALARM A
WATER
HOT
ALARM E
PRESSURE
WATER
ALARM L
OPEN
BURNER
Possible solution
Press button 4 for a few seconds and let the final cleaning
stage finish. The boiler will come back to the turn-off status.
Check the probe connection or replace it.
Regulate the pellet loading and/or the extractor speed.
Verify the type of fuel that has been used.
Check the extractor electrical connection or replace it.
Check the geared motor and the ignitors correct operation..
Check a possible blockage of the Auger feeder. Verify that
there is actually fuel in the tank.
Refill tank. Check the augers operation. Check the fuel
characteristics and that it has not become compacted.
Clean the bottom of the hopper.
Restart the thermostat manually. Check the reason why the
temperature is excessive and provoked the overheating (fuel
load, excess draw , fuel type.)
Verify that the chamber is hermetic: check locks, gaskets...
etc. Check that the flue installation is correct (excess of
horizontal sections, bend joint, etc). Possible fuel blockage.
Check the primary air inlet. Verify installation (excess of
horizontal section, curves, dirtiness, blockage, etc).
Clean the flow sensor to get a proper reading.
Replace the flow sensor.
Verify the electrical connection of the auger feeder.
Check the probe connection or replace it.
Check the pump is working. Check the water system
installation. Purge properly.
Check the hydraulic pressure of the installation, which should
be between 1 and 1.5 bars.
THERMO-STOVES AND BOILERS WITH AUTOMATIC CLEANING
D75
D76
D77
D78
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