System Tests; Diagnostic Led (Dgn Led)/Error Codes - Equipment Marketers GA025L Installation Operation & Maintenance

Lockout Manual Reset
Lockout Mode is cleared by pressing an external reset switch
for three seconds. The ignition control will clear all error codes
and enter Standby Mode. During Lockout Manual Reset, the
Diagnostic LED on the ignition control flashes red and orange,
and the Reset Light remains on until the ignition control is reset.
After the Reset Light turns off, stop pressing the switch. Holding
the reset for three seconds after lockout has been cleared will
cause a fault and result in entering Lockout Mode again.

System Tests

The following system tests are performed during normal
operation. System tests are performed at a minimum of every 24
hours.
Low Voltage Detection
If the voltage between terminals TH and GND on the control
is below 18.75VAC +/- 0.75VAC for more than 3 seconds the
ignition control will turn off the gas valve and will not attempt
to spark. The Diagnostic LED will display Error Code 5. The
ignition control will not enter Lockout Mode if a low voltage
condition is detected, but will enter Standby Mode and wait for
the low voltage condition to be cleared.
If the voltage between terminals TH and GND on the control
rises above 19.75VAC +/- 0.1VAC for at least 3 seconds, the
ignition control will then enter Start Up Mode.
Low Voltage Detection test is disabled during Run Mode.
Gas Valve
The ignition control verifies that the gas valve is connected.
Failure of this test results in the ignition control entering
Lockout Mode with the Diagnostic LED displaying Error Code
2.
Flame Probe Tests
The Unexpected Presence of Flame test is performed when
no flame is expected. Failure of this test results in the ignition
control entering Lockout Mode with the Diagnostic LED
displaying Error Code 3.
During the Flame Monitoring test, the flame is checked to ensure
the gas is being burned when the gas valve is on. Failure of this
test will result in the ignition control entering Lockout Mode
with the Diagnostic LED displaying Error Code 3.

Diagnostic LED (DGN LED)/Error Codes

The Diagnostic LED or DGN LED is located by the power
connector on the ignition control. Refer to Figure 52 . The
Diagnostic LED will indicate the status of the ignition control.
Refer to Table 22 .
Part No. 70476301ENR6
©
Published by permission of the copyright owner - DO NOT COPY or TRANSMIT
LED Color
Orange-Yellow
Green
Red
Table 22
The Diagnostic LED will flash error codes one half second on
and one half second off. Error codes are separated by a one
second pause before the code is repeated.
Error Code DGN LED status
1 Red
2 2 Red Flashes
3 3 Red Flashes
4 4 Red Flashes
5 Slow Red and
Green Flashes
Operating Instructions
Description
Initialization
Standby/Normal Operation
Fault Indication Code
Fault Type
Ignition Control
Internal Failure
Gas Valve Not
Connected
Ignition/Flame
Sense Failure
Reset Switch is
Shorted
Low Voltage
Detection
97