Miscellaneous Touchscreen Controller Errors - IBC Sl Series Installation & Operating Manual

8.3 Miscellaneous touchscreen controller errors

" Loop/Indoor Sensor"
"Insufficient Air Flow"
"Insufficient Water Pressure"
"Unknown Error"
Error - Max. Inlet/Outlet Sensor Temp. Exceeded.
> Check water flow Water temperature signal not
within acceptable range. Potential flow or sensor
failure. Consult service technician.
Blank – screen dark, but fan running Indicative of
power-surge damage to appliance
Controller is stuck in "service" mode after software
update.
Miscellaneous errors
Issue
8.3 Miscellaneous touchscreen controller errors
Diagnosis
The sensor Check the P501 plug is
plug is not fully engaged in the back
engaged. of the controller board.
The sensor Check the P501 plug is
plug is not fully engaged in the back
engaged. of the controller board.
Temperature Test each temperature
sensor input sensor for appropriate
problem. readings and Replace
defective temperature
sensor.
Current outlet Check water flow.
temperature
exceeds
operating limit.
Defective or
Check wiring to
disconnected
temperature sensor and
temperature
control module.
sensor.
Check temperature
sensor.
Check transformer;
replace if damaged.
Check circuit board for
visible damage.
If update fails Restarting returns the
or no updates boiler to normal operation.
applied.
95
Fix