INS-TSSHC-3NPSBFS-16A-1209
18
4. Troubleshooting
* E1: Faulty ambient exterior sensor (open circuit) – written in the ambient section
** E2: Faulty interior sensor (open circuit) – written in the ambient section
*** E3: Faulty floor sensor (open circuit) – written in the floor section
N.B. If you do not solve the problem after checking these points, cut off the
power supply at the main electrical panel and contact customer service
(consult our Web site to obtain the phone numbers).
Problem description
Solution
1 -
The thermostat
is hot.
In normal operating conditions, the thermo-
stat housing can reach nearly 104ºF (40ºC)
at maximum load. It is normal and will not
affect the operation of the thermostat.
2 -
Heating is al-
ways on.
Check if the thermostat is properly connect-
ed. Refer to the installation section.
3 -
Heating does not
run even if the ther-
mostat indicates
it is on.
Check if the thermostat is properly connect-
ed and make sure the red indicator is not lit.
Refer to the installation section.
4 -
The display does
not come on.
Check if the thermostat is properly connect-
ed. Refer to the installation section. Check
the power supply at the electrical panel.
5 -
The red indicator
lights up frequently.
Contact customer service.
6 -
The displayed am-
bient temperature is
incorrect.
Check the presence of an air stream or a
heat source near the thermostat, and cor-
rect the situation.
7 -
The display indi-
cates E1*, E2** or
E3***.
Faulty thermal sensor. Contact customer
service.
8 -
Weak luminosity of
the display.
Possibility of a bad contact. Check thermo-
stat wirings. Refer to the installation section.
