Installation Instructions

52
If the limit circuit opens and does not close within five min-
utes, the control assumes the blower has failed the RED LED
will flash ELEVEN times.
If the limit circuit opens and does not close within fifteen
minutes, the control assumes the manual rollout or fuse has
opened and the RED LED will flash FIVE times. The control
will enter a one hour lockout and the inducer will run continu-
ously.
In an open limit condition the red LED will flash as described
above but the error code will not be stored in memory until
the limit resets or until 15 minutes has elapsed. So if the
limit resets in less than 5 minutes a four flash code will be
stored. If the limit resets in more than 5 but less than 15
minutes, an eleven flash code will be stored. If the limit is
still open after 15 minutes, a five flash code will be stored.
DIAGNOSTIC CHART
Refer to the Troubleshooting Chart in the back of this manual
for assistance in determining the source of unit operational prob-
lems.
External Lockout
- A control lockout resulting from an external fault
sensed by the control, such as an unsuccessful recycle
or retry period, or a limit trip. Once in External
Lockout, the control will shut down for a period of
one hour before attempting another trial for ignition.
Internal Lockout
- A failure internal to the control board.
FAULT RECALL
Retrieving Fault Codes
To retrieve fault codes, push and release the “LAST ERROR”
button for more than 1/5 second and less than 5 seconds
(the LED will indicate this period by solid GREEN for 1/5
second to 5 seconds). The LED will flash up to five stored
fault codes, beginning with the most recent. If there are no
fault codes in memory, the LED will flash two green flashes.
The control will flash the most recent error first and the
oldest error last. If multiple faults exist there will be 2 sec-
onds between codes. Solid LED error codes will not be dis-
played.
Fault Code Reset
To clear the fault code memory, push and hold the “LAST
ERROR” button for more than 5 seconds and less than 10
seconds (the LED will indicate this period by RAPID GREEN
FLASH for 5 seconds to 10 seconds). The LED will flash three
green flashes when the memory has been cleared.
The ignition control is equipped with a momentary push but-
ton switch that can be used to display on the diagnostic LED
the last five faults detected by the control. The control must
be in Standby Mode (no thermostat inputs) to use the fea-
ture. Depress the push button switch for approximately 2