RO Water Purifier Service & Repair in Delhi

Where the water appears tells you most of the story. A steady drip at a push-fit joint usually means the pipe has slipped or was not cut square. Water between a filter housing and its cap points to a worn O-ring. A hairline crack cannot be tightened away, so the housing is replaced.

Water from the top of the purifier is a different fault. The tank is overfilling, so the check moves to the float and the solenoid valve, which should stop the flow once the tank is full.

Pressure can cause repeat leaks. Some Delhi homes run a pressure pump on the kitchen line, and Aquaguard requires a pressure reducing valve above 3 kg/cm² on its RO models. If a joint keeps failing, ask the professional to check the supply pressure too.

If the purifier is dry and the wall behind it stays damp, the leak is in the wall or a nearby pipe, so book plumbing services in Delhi instead.

Start with the supply, because it costs nothing to check. Aquaguard's own checklist asks whether the overhead tank has water and whether the main tap is open. If the kitchen tap runs well but the purifier gives a trickle, the pressure reaching it may be too low.

Height matters here. Kent's ACE Plus manual asks for the raw water tank to sit at least 10 ft above the purifier. A top-floor kitchen on a Delhi builder floor can sit only a few feet below the terrace tank, so a purifier there may struggle even with a full tank. Aquaguard recommends a booster pump below 0.3 kg/cm².

If pressure is fine, Eureka Forbes lists the next suspects as clogged pre-filters, a blocked membrane or a pump fault. Kent says filter life depends on raw water quality and use, so a dirty overhead tank can choke a filter early.

Output also drops in cold water, so a slower purifier in January is not always a fault. If the supply itself is short, that complaint goes to the Delhi Jal Board, not to a purifier repair.

Water running to the drain: an RO sends reject water out while it fills, and Kent's ACE Plus lists up to 60% reject water. It should stop once the tank is full. If it runs on, suspect the solenoid valve, float, check valve or a high-pressure switch.

Under-the-counter tanks: these hold water under air pressure. Once the bladder inside fails, the tank will not hold its charge, flow at the tap fades quickly and the tank needs replacing.

Noise: some pipe vibration is normal while the tank fills. A rattle that grows, or a pump that keeps running with a full tank, needs the repair check-up.

No lights or sound: try the socket with a phone charger first. Many purifier pumps run on low voltage through an adapter, so a dead adapter can look like a dead machine. If several sockets fail, book electrical services in Delhi first.

Beeping or a locked purifier: this may not be a breakdown. The Kent ACE Plus sounds an alarm after 700 hours of use and stops if filters are not changed within 60 more hours. Aquaguard's NXT shows LED error signals for a UV lamp fault and for no input water.

Taste and smell usually start after the membrane. Eureka Forbes names a spent carbon filter, biofilm in pipes and a dirty storage tank. Water left in the tank too long can also taste off with nothing broken.

High TDS needs two readings, because a higher output has three likely causes. Your supply may have changed, say from Jal Board water to a tanker or borewell. The membrane may be wearing out. Or the TDS controller may be set too far open.

That last one is easy to miss. Kent and Aquaguard purifiers have an adjuster that blends minerals back into the output. Aquaguard ships it fully closed, and opening it raises output TDS, so a reading that jumps after a service may need resetting, not a new membrane. Its manual reserves this adjustment for its own technician.

A TDS tester has limits. Kent notes it cannot identify bacteria or individual chemical contaminants, so a low reading does not show the water is free of them.

Check the brand warranty first. Aquaguard's terms exclude faults from repairs or alterations by others, and from re-installation at a different location. Kent's ACE Plus manual calls filters and membranes consumables, yet offers free cleaning, repair or replacement if a filter chokes within six months or a membrane within a year. If your purifier is new, call the brand before booking.

Out of warranty, a repair usually makes sense for an adapter, solenoid valve, float or leaking joint. These are small parts on a sound machine. A pump plus a membrane plus a full filter set is different, so set that quote against the price of a new purifier.

Replacing makes more sense when the model does not suit your water. If input TDS or hardness is above the model's limit, a new membrane faces the same load, and Aquaguard says not to install where TDS is above its specification. The same applies to a UV or UF model after a move to borewell or tanker water, since neither lowers TDS.

Salty water also leaves scale elsewhere in the house, which is where geyser repair and washing machine repair come in. Bookings on FixThat go through ProNearMe, which runs this site, so the professionals, prices and support match. The About page has the details.

Wall-mounted RO installation is ₹499 and takes about an hour. The purifier goes on its own bracket, the inlet joins your water line through a diverter valve, and the drain pipe runs to the nearest outlet. It ends with a first flush, a leak check and an output TDS test.

Under-the-counter RO installation is ₹649 and takes about 90 minutes. The purifier and pressure tank go inside the cabinet, the drain joins the sink drain, and a faucet hole is made on the counter or sink where possible.

Placement causes later faults. Kent asks for raw water and a drain within 3 m, and for wall mounting, not wooden or metal stands. Aquaguard warns against direct sunlight, and says a hot water tap can damage the filters.

RO uninstallation is ₹449 and takes about 30 minutes. The purifier comes off the wall or out of the cabinet and the open water line is capped. Brand warranties can depend on who installs, so read yours before moving a covered purifier.