Grand Plus 12L / 14L RO+UV+UF Repair
Technology: Universal 12L transparent ABS cabinet, 24V booster pump, 75 GPD TFC membrane, 11W UV tube, hollow-fiber UF, float microswitch.
The benchmark transparent cabinet format installed in thousands of Ghaziabad kitchens. Uses standard universal components that are easy to service and upgrade.
Common Faults: Solenoid valve stuck open (continuous reject water), float switch sticking causing tank overflow, booster pump head diaphragm leak.
Key Parts Involved: 24V inlet solenoid valve, microswitch float valve, 75 GPD membrane, pump diaphragm kit.
Repair & Replacement: Replacing defective solenoid valve (₹450–₹700), installing fresh magnetic float switch (₹250–₹450), rebuilding booster pump head.
When to Inspect: Inspect purifier when reject water pipe runs continuously with machine off or when purified water overflows from tank.
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