Washer stops and displays E15; drum may be stationary while pump runs intermittently.

Safety first: Unplug the washer before adjusting hoses.

• Check drain hose height: Ensure the drain hose is installed at the correct height specified by Primus (typically 60–100 cm above floor). If too low, water can siphon out, confusing the level system.
• Secure hose: Make sure the hose is firmly hooked into the standpipe or sink and not sealed airtight (allow air gap to prevent siphoning).
• Inspect air break/vent: If your Primus model has an external air break, check for blockages or kinks.
• Pressure sensor check: As in E08, inspect the pressure hose and sensor for blockages or damage.
• Test cycle: After correcting installation and checking components, run a rinse and spin cycle to verify that E15 does not reoccur.