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Global Power Technologies
3-10
5030
3.7.1
No Fuel:
Ensure that all valves are open and that the fuel line is not kinked. Ensure that the
fuel filter is not blocked and that the regulator is not clogged. In extreme cold temperatures
(-40ºC) propane fuel has a very low vapor pressure and will fail to supply fuel without an exter
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nal pressurization system. If the shutoff option is present, ensure that the shutoff valve is func
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tioning properly. Refer to section 1.4.
3.7.2
Fuel Orifice:
Verify that the proper orifice is present for the fuel used. The orifice is stamped
with a number. A #4 orifice should be used with natural gas and a #5 for propane. Remove
the orifice and hold it up to a light. The hole should appear clean and round. Replace the orifice
if it is suspect.
3.7.3
Spark Ignition Check:
Remove the high voltage spark ignition wire from the electrode and
using a non-conductive instrument hold the ignitor tip approximately 1/4 inch from the metal
cabinet. Using a metal object short the contacts on the pressure switch to create a spark.
Sparks should occur at a rate of about 1 or 2 per second.
3.7.4
Shorted Ignitor Wire:
If the sound of a spark can be heard but no spark is formed at the
electrode tip then the high voltage spark wire is shorting to the cabinet. Even if no spark can
be heard a short may still exist. With the pressure switch contacts closed listen and look for
a spark along the length of the wire. If possible, reposition the wire away from the cabinet or
position a non-conductive obstacle in between the wire and the cabinet. Strips of electrician’s
tape work well to isolate the wire. If the insulation is worn then the wire should be replaced. If
the electrode ceramic is cracked then this is often a path for a spark to ground. Replace elec
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trode.
3.7.5
Spark Ignitor Battery:
The most common reason for a faulty spark ignitor is a dead battery.
This can occur during long periods of storage, from a faulty charging circuit or if the generator is
allowed to run open circuit for more than a few hours. The battery can be removed and charged
at 300 milliamps or the generator can be manually ignited and allow the generator to charge the
battery automatically. The converter limiter must be connected to the generator to charge the
battery (TEG(-) and TEG(+) leads connected to terminal posts). If the battery does not charge
while the generator is operating then either the charging circuit is faulty or the battery should be
replaced. The charging circuit can be checked by measuring the voltage on the battery leads
with the battery disconnected. If the measured voltage is not close to 2.3 volts try adjusting the
charging voltage using the pot shown in Figure 2. If the voltage is still not 2.3 volts then the
converter limiter should be returned to the factory for repair.
3.7.6
Electrode:
To adjust the position of the electrode loosen the wing nut to allow the electrode
to be pushed in freely. Push the electrode in until it touches the burner plate. Next pull the
electrode about 5 millimeters (1/4 inch) out and re-tighten the wing nut.
3.7.7
Fuel/Air Mixture:
The mixture of the fuel to the air is adjusted with the air adjustment screw
protruding from the burner cover. To adjust the air shutter loosen the locking nut and turn the
adjusting screw.
If the generator is having difficulty igniting it is sometimes easier to ignite in a fuel rich condition
or in other words with the air shutter fully closed or almost fully closed.
Summary of Contents for 5030
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Page 28: ...Global Power Technologies 4 2 5030 Figure 8 30 Watt Converter Limiter Physical Description ...