








Dispenser activates but no water is delivered — pump has failed and cannot move water.
Water trickles out instead of dispensing at normal speed, indicating reduced pump output or pressure loss.
Pump fails to operate or respond entirely, preventing the water dispenser from functioning. Pump Not Working::Pump fails to operate or respond, preventing the water dispenser from functioning.
💡 Pro Tip: Is Your Water Dispenser Pump Failing?
Your part is likely the culprit if you notice any of the following:
⚠️ Water dispenser produces no water when the tap is activated
⚠️ Water flow is noticeably slow or intermittent
⚠️ You can hear the motor humming but no water is delivered
⚠️ Water dispenser leaks from the pump area due to cracked diaphragm
Before replacing, verify the water bottle is properly seated and the tubing connections are secure. Then unplug the dispenser, remove the bottom panel, locate the existing DP005A2 / GMB-D-23130 pump, and inspect for cracks or seized motor. If the motor hums but won't push water, the diaphragm is likely failed — replace the pump assembly.
📦 What's in the Box
✅ 1× GMB-D-23130 Self-Priming Diaphragm Water Pump (DC 12V, 1.2L/min, 35 PSI)
✅ 1× 1/4" Quick-Connect Elbow Fitting
✅ 1× Length of 1/4" Food-Grade RO Water Tubing
✅ Mounting Screws
✅ Heat-Shrink Tube for wire connections
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Disclaimer: Compatibility information, part numbers, and model fitment data on this page are sourced from manufacturer databases and third-party references. While we strive for accuracy, please verify your appliance model number before ordering. Heima is not responsible for errors or omissions in compatibility listings.
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