Genesis Heat Gun Rectifier Diode Replacement
Inleiding
Ga naar stap 1Follow this guide to replace the rectifier diodes on a Genesis GHG1500A Dual Temperature Heat Gun.
If you find that the heat gun is not working and your multimeter indicates a shorted diode, then this guide should help.
I recommend replacing all 4 diodes so that all of the diodes have the same specs. This should reduce the likelihood of compatibilty issues in the future.
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Remove the seven 14mm screws from the side of the drill using a phillips screwdriver.
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Remove the top casing to reveal inside of drill.
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Using a phillips screwdriver remove the two 12.5 mm screws that are holding the fan housing to the bottom case.
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Lift switch out of the bottom case.
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Lift wires out of their retaining slots.
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Seperate the fan unit from the plastic housing that is attached to the metal shield.
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Position fan and metal shield so that you can comfortably work on the circuit board located on the top of the motor.
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Quickly move the soldering iron back and forth between both ends of the diode while adding fresh solder until the diode is released from the pads.
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Method 2 (2 soldering irons) [Photo 2]
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Heat up both soldering irons.
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Add fresh solder to both ends of the diode. (Photo 1)
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Hold soldering irons on both ends of the diode and lift the diode off of the circuit board once the solder melts. (Photo 2)
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Repeat the above steps for the remaining diodes.
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Remove excess solder from pads. (Link to desoldering video and the importance of flux)
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Add flux to the pads
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Apply flux to desoldering wick braid
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Place desoldering wick braid on top of the pad
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Press the iron on the braid until the solder on the board wicks into the braid.
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Repeat above steps for the remaining pads.
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Add flux to pad. (Photo 1)
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Add small amount of solder to the tip of the iron. (Photo 2)
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Use tweezers to hold the diode centered in between both pads. (Photo 3)
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Touch the iron to the pad to tack the diode into position
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Add flux to second pad. (Photo 1)
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Hold iron onto the second end of the diode and feed solder onto the board right at the tip of the soldering iron. (Photo 2)
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Revisit the first end of the diode and repeat the step above to ensure a sufficient amount of flux is on the pad. (Photo 3)
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Use isopropyl alcohol on a q-tip to clean any excess flux left on the board.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
