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HBX THM-0500 Touch Screen Programmable Thermostat Instruction Manual

TROUBLESHOOTING GUIDE  
ISSUE  
POSSIBLE CAUSES & RESOLUTIONS  
Blank Screen  
Check the ZON-0550 power  
Check wiring polarity between the THM-  
0300/THM-0500 and ZON-0550 module.  
Ensure zones 1 and 3 damper/4-pipe is set  
correctly.  
Stage 2 won’t  
come on  
Check stage delay in system setup for  
proper time.  
In special functions ensure you have  
selected correct thermostat type.  
Demand not  
coming on  
Demands may take up to 5 minutes to  
operate due to P.I.D algorithm.  
Verify wiring on the ZON-0550 module.  
Check priorities settings in zone setup.  
Check the changeover settings  
Temperature  
not displaying  
correct value  
If it is showing dash lines ensure that the  
proper thermostat mode is selected in mode  
setup.  
Ensure external sensor(s) is wired correctly.  
Make sure the external room dipswitch on  
the board is in the correct position.  
Target  
Check the setback schedule  
changing  
If you’re in auto changeover, then the  
target can change to either heating target  
or cooling target based on actual room  
temperature.  
19  
GeneralDetails
NameHBX THM-0500 Touch Screen Programmable Thermostat Instruction Manual
MakeHBX
LanguageEnglish
FiletypePDF (Download)
File size0.52 MB
Download PDF
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HBX THM-0500 Touch Screen Programmable Thermostat Instruction Manual