Performance under Pressure

Help - Troubleshooting Safety Switch Reset

Safety Switch Reset

Hakko Air Pumps have a Safety Switch which is designed to turn off the motor if the rubber diaphragms wear out. The rubber diaphragms are attached to the magnet which vibrates back and forth. If the diaphragm wears out the magnet will start to vibrate excessively. You will hear the pump making a lot of noise. The safety switch senses the excess vibration and turns the motor off to prevent damaging the motor. Sometimes during shipping the pump will get bumped too hard and the safety switch will turn off. If your pump does not turn on brand new right from the box this may be what happened. You can reset the switch very easily. If your pump has been running with bad diaphragms for long periods the switch may shut off and you will have to turn it back on after you replace your diaphragms. The switch is easy to reset.

Please open pdf file for instructions on resetting your safety switch.

  PDF File for Safety Switch Reset

Koi & Pond Tip of the Day
January 21st, 2018
Ponds with vinyl liners or of fiber glass construction tend to show a decrease in alkalinity over time and may need supplements to maintain an acceptable level. Raise alkalinity by adding Calcium Carbonate, concrete blocks, oyster shells, limestone, or even egg shells.
Tips by » Koi Clubs USA

Hakko HK40L Linear A...
Hakko HK40L Linear Air Pump

The Hakko HK-40L Linear air pump represents a top of the line Linear Air Compressor with 3 year war...

Read more
Aquarium Air Manifol...
Aquarium Air Manifolds

We recommend that you use these small manifolds for aquariums. These small air manifolds c...

Read more
Hakko HK25L Vacuum A...
Hakko HK25L Vacuum Air Pump

The Hakko HK-25L Linear air pump represents a top of the line Liner Air Compressor with 3 year warr...

Read more