Possible cause

Solution

Shutter does not open

No electrical signal

Check power supplies

Insufficient pressure inlet

Check water pressure devices

• Core solenoid is stuck

• Check and clean core

• Solenoid connections are clogged

• Check and clean connection

• Solenoid does not respond - no 'click

• Test the solenoid, replace it if necessary and check that the power supply is the same as specified on the solenoid

Diaphragm leaks

Replace diaphragm

Valve does not close

Dirt in the hole of the diaphragm

Disassemble, clean and apply a filter

Stagnation filter is closed

Dismantle and clean the Stagnation Filter

Stagnation filter is not properly installed

Stagnation filter must be mounted with an arrow in the direction of flow

• Solenoid remains endorsed

• Untreated solenoid

• Reduce the leakage current

• Solenoid connections are clogged

• check and clean up closure

Dirt is stuck underneath the diaphragm

Open the valve and remove any dirt, check the diaphragm for damage

Manual mode is set to 'open'

Set manual mode to 'auto'