7. TROUBLESHOOTING

Sensor (White: 100 - 127V)

(Blue: 220 - 240V)

Heater (Red)

*At 23℃/73°F,

Normal heater resistance value: 35 Ω (100 - 127 V models) 160 Ω (220 - 240 V models)

Normal sensor resistance value: 50 Ω (100 - 127 V, 220 - 240 V models)

NOTE:

Use of the tool when the nozzle, heating core, or filter is clogged may cause the pump to

lock up and render operation impossible. Clean or otherwise eliminate the blockage before

attempting to use the tool.

Repairs

When repair becomes necessary, check the following and then bring the desoldering tool

to a HAKKO sales outlet or HAKKO dealer.

1. Is the nozzle or heating core clogged?

2. Is the valve plate cracked or missing?

3. Is the front holder or filter holder warped or cracked?

4. Is the pre-filter or ceramic paper filter dirty or warped?

Detailed information can be found in manuals available

at the HAKKO Document Portal.

Please download and make use of them.

https://doc.hakko.com

Calibrating the temperature

1. Install a new nozzle. The nozzle being used may have already

started to wear, so use a new nozzle.

2. Insert the power plug into the outlet.

3. Set the temperature to 400 °C/750 °F.

4. Wait for about 1 minute until the nozzle will melt solder, then

apply a generous coating of your solder to the end of the nozzle.

When the iron temperature reaches the set temperature, the

LED lamp will flash.

5. Use a soldering iron tip thermometer (optional accessory) to

measure the temperature at the tip of the nozzle. Do not apply

suction, as this will cause the temperature to drop.

6. Adjust CAL until the temperature is 400 °C/750 °F. Turn CAL

clockwise to increase the temperature.

• It may take several minutes for the nozzle temperature to

stabilize after CAL is adjusted.

• During CAL adjustment, make sure the set temperature does not go above 500℃/930°F,

as this may damage the desoldering tool.

Problem cause

Procedure

Tool does not

heat up

Tool is not connected properly

to power outlet

Connect properly

Heating element burnout*

Replace heating element

Sensor is broken*

Temperature is

low

Temperature is set too low

Reset

Temperature has not been

calibrated properly

Calibrate properly

Nozzle is worn out

Replace nozzle

Pump does not

operate

Nozzle or heating core (in heating

element) is clogged

Clean

Too much solder or flux has

collected in the filter

Replace filter

Suction force is

weak

Too much solder or flux has

collected in the filter or inner hose Replace filter or inner hose

Vacuum leakage

Inspect nozzle, area around filter

and pump hose

Pump valve or diaphragm is broken Replace valve or diaphragm

*Heater lead (Sensor lead)

Low High

Use a flathead screwdriver

to adjust