Synapse SE72 - Troubleshooting Common Thermostat Issues

SYN-INT-E01 21
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oorsensor(opencircuit)–writtenintheoor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 Solution
Thethermostatishot.
Innormaloperatingconditions,the
thermostathousingcanreachnearly40ºC
atmaximumload.Itisnormalandwillnot
affectthe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andmakesuretheredindicator
isnotlit.Refertotheinstallationsection.
Thedisplaydoesnot
comeon.
Checkifthethermostatisproperly
connected.Refertotheinstallationsection.
Checkthepowersupplyattheelectrical
panel.
Theredindicatorlights
upfrequently.
Contactcustomerservice.
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*,E2**orE3***.
Faultythermalsensor.Contactcustomer
service.
Weakluminosityofthe
display.
Possibilityofabadcontact.Check
thermostatwirings.Refertotheinstallation
section.