H B X C P U - 0 6 0 0 C o n t r o l
V e r s i o n 1 . 0 . 0
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ISSUE
POSSIBLE CAUSES & RESOLUTIONS
Dual Setpoint Mode
Setpoint temperatures showing
dashes
• Check setpoint sensor wiring
Setpoints cycling too frequently
• Check differential settings
Heating Setpoint is not turning on
• Check if cooling logic setting and turn it off
Pump Sequencer Mode
Control won’t turn on pumps
•
Check if there is demand on pins 7-8 and flow proof input on pins
9-10
Pump(s) are running all the time
• Check if manual override settings
Pump(s) are not sequecing
• Check sequencing settings for rotation hours or rotation cycles.
CPU-0600 TROUBLESHOOTING GUIDE
For additional assistance with the CPU-0600, please contact
our Technical Support Department toll free at:
+1 (855) 410-2341
