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PROBLEMS AND SOLUTIONS
FAULT
CAUSE
SOLUTION
THE MACHINE WORKS
NEITHER IN THE
VENTILATION NOR IN THE
HEATING MODE
There's no electric voltage
•
Check the electric connections.
•
Check if line and auxiliary loads fuses are undamaged.
•
Check if the engine thermal protection has been
activated.
THE MACHINE DOES NOT
WORK IN THE SUMMER
VENTILATION MODE
There's no electric supply to the
fan engine
•
Check the electric connections.
•
Check if line and auxiliary loads fuses are undamaged.
•
Check if the engine thermal protection has been
activated.
THE MACHINE DOES NOT
WORK IN THE HEATING
MODE
There's no electric supply to the
gas or oil burner
•
Check the electric connections.
•
Check if line and auxiliary loads fuses are undamaged.
•
Check if the room thermostat contact is closed.
•
Check if the engine thermal protection has been
activated.
•
Check if the safety thermostat has been activated.
THE BURNER FLAME LIGHTS
UP BUT AFTER A FEW
SECONDS IT GOES OUT
The electric connection has not
been properly made
•
Check the electric power poles (phase + n earth).
Burner to be checked or out of
order
•
Check the burner calibration
•
Replace the electric equipment of the device.
•
Check and/or replace the flame detection electrode.
THE FLAME OF THE OIL
BURNER LIGHTS UP, BUT IT
GOES OUT AFTER A FEW
SECONDS
The electric connection has not
been properly made
•
Check the electric power poles (phase + n earth).
Burner to be checked or out of
order
•
Check the burner calibration.
•
Replace the electric equipment of the device.
•
Check and/or replace the burner photocells.
THE BURNER GOES OFF
ANOMOUSLY AND RANDOMLY
The automatically restarting
safety thermostat is operating
•
Check if the flow directing fins are opened.
•
Check that the air intake grills are not obstructed.
•
Check the fan engine.
Detachment of the burner flame
•
Check the burner calibration.
•
Check that the machine is not in a depressure
environment.
Wrongly installed room
thermostat
•
Check that the thermostat sensor is not in the machine
warm air flow.
ACTIVATION OF THE
AUTOMATICALLY OR
MANUALLY RESTARTING
SAFETY THERMOSTAT
Air circuit obstructed
•
Check if the flow directing fins are opened.
•
Check that the air intake grills are not obstructed.
Warm air recirculation
•
Check if the flow directing fins are opened, so that the
warm air is not recirculated from the outlet to the inlet.
•
Check the air intake temperature.
Ventilation unit to be checked or
out of order
•
Check that the fan runner is cleaned.
•
Check the efficiency of the fan engine
•
Check the belt condition and the tension.
•
Check if the thermal protection of the fan engine has
been anomalously activated.
Excessive thermal strength
•
Check the calibration of the gas or oil burner.
ACTIVATION OF THE
THERMAL PROTECTION OF
THE FAN ENGINE
Excessive electric absorption
and/or heating of the fan engine
•
Check that the air diffusion plenum is installed.
•
Check the supply electric voltage.
•
Check the air intake temperature.
THE FAN DOES NOT START
ONE MINUTE AFTER THE
BURNER HAS BEEN
SWITCHED ON
Insufficient thermal power
•
Check the calibration of the gas or oil burner.
FAN-LIMIT double thermostat to
be checked or out of order
•
Check the calibration of FAN indexes.
•
Replace the FAN-LIMIT double thermostat.
THE FAN DOES NOT STOP
WITHIN 4/5 MINUTES AFTER
THE BURNER HAS GONE OFF
Too high room temperature
•
Check the air intake temperature.
•
Check the machine exposition to solar irradiation.
FAN-LIMIT double thermostat to
be checked or out of order
•
Check the calibration of FAN indexes.
•
Check if the white button has been set on the AUT
position.
•
Replace the FAN-LIMIT double thermostat.
