16
INSS0414
ProbleM
DeFeCTIVe PArT or PArT To CHeCK
The thermostat is hot.
• In normal operating conditions, the thermostat
housing can reach nearly 40°C at maximum load.
That is normal and will not affect the effective
operation of the thermostat.
Heating is always on.
• Check if the thermostat is properly connected.
Refer to the installation section.
Heating does not run
even if the thermostat
indicates it is on.
• Check if the thermostat is properly connected.
Refer to the installation section.
The display does not
turn on.
• Check if the thermostat is properly connected.
Refer to the installation section.
• Check the power supply at the electrical panel.
• Check if the heating unit has a switch. If so,
ensure that this switch is turned on.
The display turns off a
few minutes and then
turns on again.
• The thermal protection of the heating unit has
opened due to overheating. Check if the heating
unit is in good condition of operation and that
clearance around the appliance is according to
the manufacturer’s specifications.
The display has low
contrast when heating
is on.
• The load is lower than the minimum load. Install
a heating unit that is within the load limits of the
thermostat.
The displayed ambient
temperature is incorrect.
• Check the presence of an air stream or a heat
source near the thermostat, and correct the
situation.
The display indicates
E1 or E2.
• Faulty thermal sensor. Contact the customer
service.
Weak luminosity of the
display.
• Possibility of a bad contact. Check thermostat
wirings. Refer to the installation section.
N.B. If you are unable to solve the problem after having verified these points, please
communicate with our customer service. Consult our website for the phone numbers.
troUBleShooting
