Chefman Steam Venting / Overpressure in Brew Path

Coffee maker makes a hissing or spitting sound and emits excessive steam from the top or sides.

Safety Warning

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

Clogged brew head or pod needle, Overfilled filter basket causing blockage, Scale restricting outlet tubing, Faulty pressure relief valve (on some single-serve models)

How to Fix / Troubleshooting

Safety first: Unplug the unit and allow it to cool. Avoid placing your face or hands over steam vents.

Steps:

Clean the brew head, spray arm, and any needles thoroughly to remove coffee oils and grounds.
Ensure you are not overfilling the filter basket; follow the max fill line.
Descale the machine to clear internal restrictions.

If steam continues to escape from unusual locations (e.g., seams in the housing), discontinue use and have the unit inspected for a failed pressure relief valve or cracked internal tubing.

Repair Difficulty

Hard 4/5

Required Part

Brew Head Assembly

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