Table of Contents
Advertisement
3
Troubleshooting
Table 3G (continued from previous page) Troubleshooting Chart - Fault Messages Displayed on Boiler Interface
FAULT
Outlet Temp
Outlet water temperature has exceeded the
High
maximum outlet water temperature.
Parameter
Programming
Complete
(will require a manual
After downloading parameters from a laptop,
reset once the condition
the main control board must be reset.
has been corrected. Press
the RESET button on the
SMART TOUCH display
to reset.)
Sensor Open
(will require a manual
reset once the condition
Either the inlet water or outlet water
has been corrected. Press
temperature sensor has been disconnected.
the RESET button on the
display to reset.)
Sensor Shorted
(will require a manual
Either the inlet water or outlet water
reset once the condition
temperature sensor has been shorted.
has been corrected. Press
the RESET button on the
display to reset.)
Flue Sensor
Open
(will require a manual
The flue sensor has been disconnected or
reset once the condition
removed from the flue.
has been corrected. Press
the RESET button on the
display to reset.)
(continued)
DESCRIPTION
CORRECTIVE ACTION
• Verify that the system is full of water and that all air
has been properly purged from the system.
• Verify that the boiler is piped properly into the heating
system. Refer to Section 5 - Hydronic Piping of the
Crest
Installation
and
for the proper piping methods for the Crest boiler.
• Check for 120 vac to the boiler pump motor on a call
for heat. If voltage is not present, check wiring back
to the main control board. Replace the main control
board if necessary.
• If 120 vac is present on a call for heat and the boiler
pump is not operating, replace the pump.
• Verify that the boiler pump is set to the proper speed
or that the boiler pump is the proper size. Reference
Section 5 - Hydronic Piping of the Crest
Installation and Operation Manual for boiler pump
specifications.
• Inspect the outlet sensors and associated wiring.
Measure the resistance of the sensors and compare to
the tables in of this manual.
• Press
the
RESET
button
TOUCH display panel.
• Check the sensors and their associated wiring.
Repair or replace the sensor or wiring if damaged.
• Measure the resistance of the sensors and compare
the resistance to the tables in this manual.
• Replace the sensor if necessary.
• Check the sensors and their associated wiring.
Repair or replace the sensor or wiring if damaged.
• Measure the resistance of the sensors and compare
the resistance to the tables in this manual.
• Replace the sensor if necessary.
• Check the sensor and its associated wiring. Repair
or replace the sensor or wiring if damaged.
• Measure the resistance of the sensors and compare
the resistance to the tables in this manual.
• Replace the sensor in flue.
• Replace the sensor if necessary.
Service Manual
Operation
Manual
Boiler
on
the
SMART
51
Advertisement
Table of Contents
