MAINTENANCE
Gentherm Global Power Technologi
es
Page 59
9.4.3
Check the Battery Voltage
Follow these steps to check the battery voltage:
1.
Open the front of the TEG, then open the cover door to the electronics, located inside
the door assembly.
2.
Locate the battery, see Figure 7.
3.
Disconnect the brown wire from the battery, to remove the battery from the system.
Measure the voltage of the battery, between the positive (white wire) and negative
(previous location of the brown wire) terminals of the battery. The voltage should be
greater than 6 V.
4.
If the voltage is less than 6 V the battery assembly needs recharging or replacing.
The SI Controller board will not function if the battery voltage is below 5.5V
9.4.4
Check the Operation of the Ignition Control Module and Spark
Generation
Follow these steps to check the operation of the ignition control module and spark generation:
1.
Verify electrode gap (1/8”
-
1/4”), Section 9.4.1.
2.
Start the TEG.
3.
If arcing occurs, the ignition control module is functioning.
4.
If no arcing occurs, verify on the SI Controller board that the SI Power indicator light
is turn on. If it is on, check that the two boards are connected with good contact,
otherwise replace the SI module.
9.4.5
Check the spark return path for the SI module
Follow these steps to check the spark return path for the SI module:
1.
Verify that the green wire is connected between the electronics assembly and the
spark return connection (near the high voltage coil) on the SI Controller board.
2.
Verify that the TEG bonding wire is connected between the electronics assembly and
the TEG cabinet.
3.
Both connections are required for the SI module to properly detect flame recognition.
See wiring diagrams Figure 14 or Figure 15 for reference.
9.4.6
Check Solenoid Valve
Follow these steps to check the solenoid valve:
1.
If at the beginning of sparking, the solenoid is not heard to click open and no fuel can
flow, unplug the solenoid valve connector at the solenoid in the TEG Cabinet, see
Figure 4. Measure the voltage between the blue and brown wires; it should be around
12V when the SI module is sparking. If it is, replace the solenoid.
2.
If not, measure the voltage on the solenoid connector of the SI Controller board,
between the blue and brown wires when the SI module is sparking, and the SI valve
indicator is on. If it is, replace the solenoid wiring harness. If it isn’t, replace the SI
module.
Summary of Contents for P-5100
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