
H B X E C O - 0 5 5 0 G e o t h e r m a l C o n t r o l
V e r s i o n 2 . 0 0
Page 24
ISSUE
POSSIBLE CAUSES & RESOLUTIONS
Heat pump(s) in not turning on
•
Check wiring on page 14
•
Control is WWSD/CWSD
System pump is not turning on
•
Check wiring on page 14
•
No heat/cool demand
Reversing valve is not turning on
•
Check wiring on page 14
•
Control is WWSD/CWSD
ECO-0550 TROUBLESHOOTING GUIDE
For additional assistance with the ECO-0550, please contact our
Technical Support Department toll free at:
+1 (855) 410-2341