Gentherm 5220 Operating Manual page 68

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