TROUBLESHOOTING
Green LED Flash Amber LED Flash
Red LED Flash
Error / Condition
Up to 5 Flash Codes Stored in Memory (Auto-Erased After 14 Days)
13
Limit / Roll-Out Lockout
14
Ignition Lockout - After 3 Retries
15
Ignition Lockout - After 10 Recycles
17
Ignitor Failure - Replace Ignitor
21
Gas Heating Lockout
22
Abnormal Flame Proving Signal
23
LPS - Pressure Switch Did Not Open
24
Secondary Voltage Fuse is Open
25
Reversed 120V Line Polarity
26
HPS - Pressure Switch Did Not Open
27
Bad Ground
31
LPS - Pressure Switch Did Not Close
33
Limit or Flame Rollout Switch Open
34
Ignition Failure
36
HPS - Pressure Switch Did Not Close
Flash Codes NOT Stored in Memory
12
Blower on After Power Up
Rapid
Twinning Error
Solid ON
Internal Fault - Replace Control
11
11
11
Component Self Test - Colors Alternate
OFF
OFF
OFF
No Power - Check L1/L2 & SEC-1/SEC-2
41
Weak Flame Sensed
42
Normal Heat Mode (W)
43
Normal Cool Mode (Y)
44
Normal Fan Mode (G)
Rapid
Control Power Up - Test Mode Entry
Solid ON
Standby Mode
Two Digit Flash Codes:
The 1st digit is the number of short flashes, the 2nd digit is the number of long flashes
Example:
Ignition failure would display on the Red LED as 3 short flashes followed by 4 long flashes
Fault Recall
When the control is in standby mode, press and
hold the “FAULT RECALL” button (approximately 3-5
seconds) until the solid green LED turns off, then
release the button.
NOTE:
While displaying the stored fault codes, the
control will ignore any new call for heat, cool or fan.
Fault Code Reset
When the control is in standby mode, press and hold
the “FAULT RECALL” button until the diagnostic LED
begins to rapid flash (approximately 7-10 seconds)
then release the button. The LED will turn off for
2 seconds after fault codes are erased. Faults will
automatically be cleared from memory after 14 days.
NOTE:
If the switch is held pressed for over
10
seconds, faults will not be cleared, rapid flash will stop,
and the LED will be solid green to indicate return to
standby.
Control Reset
Control reset is automatic after 1 hour in lockout.
Removing 24 VAC power to the control for greater than
10 seconds will manually reset the control.
Flame Current Test
Set multimeter to DC volts and place leads on the
flame current sense pins. Read the voltage directly as
microamps (1 VDC = 1μA) with the burners on.
Reading results:
0.5 – 1.0 = marginal, 1.0 – 5.0 =
good.
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