Hurlcon Leaking Unions / Threaded Fittings

Water leaking from the threaded unions or pipe connections on the pump.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Loose Hurlcon union nuts, Damaged union O-rings, Cracked fittings from overtightening, Insufficient thread sealant

Safety: Turn off pump and relieve pressure before loosening any fittings.

Tighten unions: Hand-tighten the union nuts. If still leaking, use a strap wrench gently; do not overtighten.
Inspect O-rings: Open the union, inspect and clean the O-ring, and replace if flattened or cracked.
Reseal threads: For threaded connections, remove, clean, and reapply PTFE tape or thread sealant, then reinstall.

Cracked pump unions or housings should be replaced with genuine Hurlcon fittings.

Medium 3/5

Hurlcon pump unions and union O-rings

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