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II. Troubleshooting
(continued)
G. Troubleshooting problems where a Hard Lockout Code is displayed.
When a hard lockout occurs, the
boiler will shut down, the display will turn red and the “Help” button will “blink”. Select the “blinking” “Help” button to
determine the cause of the Hard Lockout. Once the condition that caused the lockout is corrected, the boiler will need to be
manually reset using the Reset button on the “Active Fault” display or located on the Sage2.2 Control.
Alarm Output Contact
The Control includes an alarm output contact located on Control terminals J6 - 7 & 8. The alarm contact closes when the
Control goes into a manual reset Hard Lockout. The list of Hard Lockouts is shown below.
Hard Lockout Codes Displayed
Lockout Number
Condition
Possible Cause
4
Supply high limit
Sage2.2 supply sensor detected
temperatures in excess of 210°F.
• Heating load at time of error was far below the minimum firing
rate of the boiler.
• Defective system circulator or no flow in primary loop.
• Defective boiler circulator, no flow or insufficient flow in boiler loop.
• Control system miswired so that the boiler operation is
permitted when no zones are calling.
5
DHW high limit
Sage2.2 DHW sensor detected
temperatures in excess of Setpoint.
• DHW load at time of error was far below the minimum firing
rate of the boiler.
• Control system miswired so that boiler operation is permitted
when no DHW are calling.
6
Stack High limit
Sage2.2 Flue gas (Stack) sensor
detected temperatures in excess of
214°F (101°C).
• Heat exchanger needs to be cleaned.
• Boiler over-fired.
• Air-fuel mixture out of adjustment - consult factory.
12
Flame detected out of sequence
A flame signal was present when there
should be no flame.
• Condensate trap plugged.
• Defective gas valve - make sure inlet pressure is below
maximum on rating plate before replacing valve.
• Plugged drain line in trap.
18
Light off rate proving failed
Blower is not running at Light-off rate
when it should or blower speed signal
not being detected by Sage2.2.
• Loose connection in 120 VAC blower wiring.
• Loose or miswired blower speed harness.
• Defective blower
19
Purge rate proving failed
Blower is not running at Purge rate
when it should or blower speed signal
not being detected by Sage2.2.
• Loose connection in 120 VAC blower wiring.
• Loose or miswired blower speed harness.
• Defective blower
20
Invalid Safety Parameters
Unacceptable Sage2.2 control Safety
related parameter detected.
Safety Parameter verification required. Contact factory.
21
Invalid Modulation Parameter
Unacceptable Sage2.2 control
Modulation related parameter
detected.
Reset the control.
22
Safety data verification needed
Safety related parameter change has
been detected and a verification has
not been completed.
Safety related Sage2.2 control parameter has been changed and
verification has not been performed.
23
24VAC voltage low/high
Sage2.2 control 24Vac control power
is high or low.
• Loose connection in 24Vac VAC power wiring.
• Loose or miswired 24Vac harness.
• Miswired wiring harness causing power supply short to ground.
• Defective transformer.
• Transformer frequency, voltage and VA do not meet
specifications.
24
Fuel Valve Error
Power detected at fuel valve output
when fuel valve should be off.
• Loose or defective gas valve harness. Check electrical
connections.
• Defective gas valve (check for 24 Vac at harness during trial
for ignition before replacing valve).
25
Hardware Fault
Internal control failure.
• Reset the control. If problem reoccurs, replace the Sage.
26
Internal Fault
Internal control failure.
• Reset the control. If problem reoccurs, replace the Sage.
27
Ignition failure
Models K2-080 through K2-180
Flame failure after 1 try to restart.
• No gas pressure.
• Gas pressure under minimum value shown on rating plate.
• Gas line not completely purged of air.
• Defective Electrode.
• Loose burner ground connection.
• Defective Ignition Cable.
• Defective gas valve (check for 24 Vac at harness during trial
for ignition before replacing valve).
• Air-fuel mixture out of adjustment - consult factory.
27
Interrupted Airflow Switch On
Interrupted Airflow Switch Failed to On The air proving switch has failed on, check switch is operating properly.
