17. TROUBLESHOOTING
PROBLEM POSSIBILE CAUSE SOLUTION
The chronothermostat does not
turn on
The system does not start / does
not start at the preset time
1. Low batteries
2. Batteries improperly installed
3. False contact
4. Wrong wiring
5. Wrong program setting
6. OVERRIDE mode is on
7. Wrong summer/winter setting
8. Wrong current time setting
1. Replace batteries
2. Check for proper polarities
3. Press reset button (
R)
4. Check the wiring of the load with
the terminals of the chronothermo-
stat (#1 and #2)
5. Check the proper time setting in the
program (ex: micro-switch #7
activates the boiler from 7:00 to
7:59 a.m.)
6. Disable the mode at issue
7. Make sure that the display shows
the symbol “igloo” (if connected to a
boiler) or the symbol “sun” (if
connected to an air-conditioner)
8. Check the current time and, if
wrong, reset it
26
LIBR. CRX/E INGLESE 24-01-2000 16:42 Pagina 27
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