Trinity Lx
│
Installation and Operation Instructions
Lx – WH Series
82
Summary and Diagnostics Display –
The Trinity Lx controller and Touchscreen display provides detailed
operational and diagnostic information for aid in troubleshooting. When power is applied to the water heater
the initial page displayed is the Summary page. Information presented on the Summary page includes Demand
source, Burner state, status of sensors and pumps, and so forth. Any current Alert or Lockout condition is also
displayed. Accessible from the Summary page are the Diagnostics pages. Refer to the controller manual for
more information.
Lockout and Alert History
– The controller maintains a record of the fifteen (15) most recent events for both
Lockouts and Alerts. To display the logs, touch the History button on the Summary page (refer to Section 7.0
in
Appendix A - Controller and Touchscreen Display Instructions
). In any situation where 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 17-1 Troubleshooting Chart
PROBLEM
POSSIBLE CAUSE
CORRECTIVE ACTION
Display shows “System
Disconnected” constantly
Communication wire disconnected
See, “System Disconnected!” above.
Faulty Sola controller
If 24VAC present at controller terminals J8 1 & 2,
check Power LED on controller. Verify that
connector J8 is securely plugged into the
controller. Recycle power to water heater, if
controller does not operate, replace the controller.
Burner not operating
Heat demand satisfied; no call for
heat
Check Demand and Set points via Touchscreen.
Check thermostat and DHW aquastat (if
applicable) setting.
Water heater outlet temperature
exceeds “Setpoint - On Hysteresis”
Check outlet temperature, setpoint and hysteresis
settings via Touchscreen.
Hold delay or Lockout
Check Summary page on Touchscreen for code.
Burner switch off
Check Summary page, if Demand indicates
“Burner switch off” go to diagnostics burner test
page and switch on.
Lockout 2 – Waiting for
safety data verification
Safety parameter(s) has been
adjusted
Changing settings that are considered safety
parameters require “Safety data verification”.
Refer to Appendix A.
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 control.
Hold 27 – Flame rod 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 voltage applied to R & T
terminals. If using 4-20mA input, check to ensure
current is not greater than 21mA.
Hold 61 – Anti short-cycle
Demand off
Check demand. Delay is to prevent rapid cycling
of burner.
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
- Faulty Blower
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.
