Gentherm 5220 - Page 68

28142 Rev 15 TROUBLESHOOTING
Gentherm Global Power Technologies Page 62
Problem Probable Cause Possible Solution Lookup Section
Low output
power or low
voltage
V
set
adjustment
incorrect
Determine required V
set
for present ambient
temperature at site and
adjust
Power Output
Evaluation and
Adjustment
Airflow past cooling
fins insufficient
Clean the cooling fins of
any debris
Maintenance
Fuel filter dirty
Drain the regulator
sediment bowl
Maintenance
Fuel orifice plugged Replace the fuel orifice Maintenance
Fuel orifice size
incorrect
Replace the orifice Maintenance
Fuel pressure
adjustment incorrect
Adjust TEG fuel manifold
pressure
Adjustment
Safety SOV valve
malfunctioning
Check the safety SOV
valve
Troubleshooting
Air filter dirty Clean the air filter Troubleshooting
Air-
shutter adjustment
incorrect
Adjust air-shutter Adjustment
L/C
or Limiter
damaged
Examine the L/C
or Limiter
Troubleshooting
L/C or Limiter
adjustment incorrect
Adjust the L/C or Limiter Adjustment
Power unit damaged Examine the power unit Troubleshooting
Output power
is too high
Fuel pressure
adjustment incorrect
Lower the TEG fuel
pressure
Adjustment
Air-
shutter adjustment
incorrect
Open the air shutter
slightly
Adjustment
Output
voltage is too
high
L/C
or Limiter
damaged
Adjust the L/C or Limiter Adjustment
L/C or Limiter
adjustment incorrect
Adjust the L/C or Limiter Adjustment