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FREE SHIPPING WITHIN GERMANY FOR ORDERS OVER €50.

Once your order has been placed, you will receive a confirmation email informing you that our shipping team has received your order. Once your order has been processed, you will receive an email notification with your tracking information. Shipping costs will not be refunded in the event of a return. We ship with:

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This spare part is the rubber diaphragm for the ZETA 02 automatic gearshift from WISY.

We recommend replacing the diaphragm of the Zeta 02 automatic gearshift after 10 years.
This is easy to do:
  1. Unplug the appliance, switch off the water supply
  2. Loosen the six screws on the head of the automatic switch and remove the cap
  3. Remove the old membrane and unscrew the plastic tappet in the centre
  4. Screw the plastic plunger onto the new diaphragm, insert the new diaphragm
  5. Replace the cap with the spring and screw tight
  6. Switch the water back on and plug the mains plug back in

The old membrane changes shape over time, the new replacement part appears more angular. It is nevertheless original and suitable.



The solution for SA06 or Controlmatic E models: the Zeta 02 automatic gearshift

Would you like to equip your old SA06 or Controlmatic E automatic gearshift with a new diaphragm? Older models usually have a high standby consumption of up to 8 watts. Why not opt for a new, energy-saving ZETA 0.2 automatic switch with a standby consumption of just 0.2 watts? This will save you up to 25 kg of CO2 emissions per year and up to €350 over the lifetime of your new Zeta 02.* automatic switch.

the long term Solution is a new pressure switch Zeta 02 with only 0,2 Watts Standby consumption

Tip
Zeta 02 Pump Controller
Variants from €248.71*
€260.61*
AspriPlus self-priming pump
Variants from €617.61*
€796.11*

* compared to an automatic switch with 8 watt standby consumption with a service life of the Zeta 02 of 15 years at 23h standby/day, 37 ct/kWh and 380 g CO2 emissions / kW (German electricity mix 2024)