Slant/Fin CHS-399 - Manual (Page 64)

Slant Fin Corp. │ Installation and Operation Instructions CHS Series
64
If the Display is not blank, but is displaying “Boiler Search, Modbus address: 1,2,3…” indefinitely, ensure
the Molex connector, located behind the display at the top, is connected and that the wires are fully inserted (see
Figures 15-2 and 15-3). If the connector appears to be fine, check the wiring connections on the back of the
display (remove display assembly - Figure 15-3); trace wiring back to boiler controller (Sola).
Figure 15-2 Display Electrical Disconnect (Molex Connector)
Figure 15-3 Display Electrical Connection Access
Display Diagnostics –
The CHS controller and user interface provide detailed operational and diagnostic
information for aid in troubleshooting. When power is applied to the boiler the initial screen
Electrical Disconnect Located
Behind Display at Top
Access the electrical connections in
the back of the display by removing
the screws securing the display
assembly to the control panel.
White
Green
Green (data +)
Black (Common)
White (data -)
Red (5VDC)
Red
Black