Slant/Fin CHS-399 - Manual (Page 65)

CHS Series Installation and Operation Instructions │ Slant Fin Corp.
65
displayed is the Home page. Information presented on the Home page includes Demand, State, status of sensors,
and so forth. Any current Alert or Lockout condition is also displayed. Refer to Appendix A - Controller and
Display Instructions for more information.
Lockout and Alert History – The controller maintains a record of the fifteen (15) most recent events for both
Lockouts and Alerts (refer to Appendix A - Controller and Display Instructions). In any situation where a
malfunction is suspected, always check the Alerts and Lockouts history. Entries recorded in the history provide
useful information for determining the cause of the malfunction.
Table 15-1 Troubleshooting Chart
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
Display shows “Boiler
Search, Modbus address:
1,2,3…” constantly Communication wire disconnected See, “Loss of Communication” above.
Faulty Sola controller or display If wiring and connections are correct, replace
display, then Sola controller.
Burner not operating Heat demand satisfied; no call for
heat Check Demand and Setpoints via user interface.
Check thermostat and DHW aquastat settings (as
applicable).
Appliance outlet temperature
exceeds “Setpoint - On Hysteresis” Check outlet temperature, setpoint and hysteresis
settings via user interface.
Hold, Delay or Lockout Check Home page on user interface for code.
Burner switch off Check Home page, if Demand indicates “Burner
switch off” go to Manual burner operation Test
page and switch on (see Appendix A).
Lockout 2 – Waiting for
safety data verification Faulty Sola controller Replace Sola controller
Lockout 9 – Flame bias out of
range 4-20mA input being overdriven. If using 4-20mA input, check to ensure current is
not greater than 21mA.
Control malfunction
Cycle power, if problem returns replace Sola
controller.
Hold 27 – Flame sensor
shorted to ground detected A flame circuit shorted to ground
may show up as a flame circuit
timeout. Zero-Ohm shorts can
display as Hold 27. Check to ensure condensate drain is not blocked.
Check to ensure no external voltage is applied to
R & CH terminals. If using 4-20mA input, check
to ensure current is not greater than 21mA.
Hold 61 – Anti short-cycle Normal operation Allow timer to expire, or reduce Anti short-cycle
setting as needed (See Appendix A)
Hold 62 – Fan speed not
proved Normal Operation (Drive to
Lightoff) Hold 62 is momentarily displayed prior to burner
ignition during the Drive to Lightoff.
Blown fuse Check Fuse " A " , blown fuse prevents blower
from operating.
Wiring defect Inspect blower wiring, ensure connectors at Sola
controller and blower are securely attached.
- Faulty Sola controller
- Blower problem
If Hold 62 persists for 15 seconds or more, while
the blower is running, check
" Fan speed "
indicated on display. If " LOW RPM " , " HIGH
RPM ", “0” or rapidly changing RPM value is
displayed, try connecting another Sola controller.
If problem remains, replace blower.
Hold 63 – LCI OFF (Limit
control input) Incorrect Sola controller. Replace control with correct model.