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Water Purifier Error Codes India

36 fault codes across 5 brands — step-by-step fixes with safety warnings and tool links.

36

Error codes

5

Brands covered

22 min

Avg. fix time

61%

Beginner-friendly

About water purifier errors in India

Water purifier errors in India are overwhelmingly filter-replacement reminders rather than actual malfunctions. Kent, Aquaguard, Pureit, and Livpure are the most common brands. RO membrane replacement (every 12-18 months), UV lamp replacement (annually), and sediment filter changes (every 6 months) are the primary maintenance tasks. Most purifiers are designed to stop dispensing water when filter life expires — this is a safety feature, not a fault. AMC plans (₹2,000-4,000/year) are worth considering if you prefer professional maintenance.

Common water purifier fault patterns

filter / membrane fault

36 codes

Browse by brand

All water purifier error codes

RO Membrane

Generic — The RO (reverse osmosis) membrane is the core purification component of any RO water purifier.

45 min · intermediate

UF Blocked

Generic — Ultrafiltration (UF) membranes in water purifiers use hollow fibre bundles to block bacteria, cysts, and suspended particles.

25 min · beginner

Beep Alarm

Aquaguard — Continuous beeping on Aquaguard purifiers is an alarm that signals one of several conditions: the filter or UV lamp service is due, the storage tank is full (overflow protection), inlet water pressure is too low, or a sensor has malfunctioned.

20 min · beginner

DRS

Aquaguard — The DRS Error appears only on Aquaguard models fitted with the suction-capable pump and a Dry Run Sensor — the Royale and the Blaze Hot & Ambient.

20 min · beginner

E3

Aquaguard — Error E3 on Aquaguard purifiers (Enhance, Aura, Geneus, Marvel series) indicates the UV disinfection lamp has either burned out, lost electrical contact, or the UV sensor is not detecting sufficient UV output.

20 min · beginner

EA

Aquaguard — The EA Error — Electronic Authentication Fault — shows as a red Service LED blinking at a 0.

15 min · intermediate

Filter Life Completed

Aquaguard — The white or green Filter Alarm LED blinking fast — at a 0.

10 min · intermediate

Filter Life Warning

Aquaguard — The Filter Life Warning is an advance warning rather than a fault.

10 min · intermediate

LPS

Aquaguard — The LPS Error means the Low Pressure Switch has not sensed inlet water, so the purifier has shut the pump down to prevent it running dry.

20 min · beginner

SV

Aquaguard — The SV Error — also written as SV/Pump Error — shows as a red Service LED blinking at a 0.

15 min · advanced

UV Lamp

Aquaguard — On Aquaguard purifiers the UV Lamp Error shows as a SOLID red Service LED.

15 min · advanced

Low Flow

Aquaguard — Low water output pressure on Aquaguard purifiers means the unit takes significantly longer than usual to fill a glass or the water stream is noticeably thinner than when the purifier was new.

25 min · beginner

No Output

Aquaguard — When an Aquaguard purifier stops dispensing water entirely, the cause is usually one of four things: the inlet water supply is interrupted, a pre-filter is severely clogged, the RO membrane is fouled or the auto-flush solenoid valve has failed.

30 min · beginner

Red Blink

Aquaguard — A blinking red indicator on Aquaguard (Eureka Forbes) purifiers signals that the UV lamp has failed or has reached end-of-life.

35 min · intermediate

Auto Flushing On

Kent — On Kent's Star-series digital-display models, the auto-flush sign indicates the RO membrane is being flushed automatically to wash impurities off the membrane surface and prevent scaling or fouling.

10 min · beginner

Continuous Beep

Kent — A continuous, uninterrupted beep on a Kent purifier is a filter-life lockout: the unit has passed 700 hours of use since the last filter change and the filters were still not replaced within a further 60 hours of operation, so it has shut down purification entirely and will keep beeping until the filters are changed.

15 min · beginner

E1

Kent — Error E1 on Kent RO+UV purifiers indicates the inlet water pressure has dropped below the minimum threshold (typically 5 PSI) required to push water through the RO membrane.

20 min · beginner

E2

Kent — Error E2 on Kent RO purifiers indicates the float valve or tank full sensor inside the storage tank has malfunctioned.

25 min · intermediate

Low RO Flow

Kent — On Kent's Star-series digital-display models, the Low RO Flow warning sign indicates reduced capacity of the RO membrane.

20 min · intermediate

Red Zone

Kent — On Kent's Star-series digital-display models, a mineral content indicator sitting in the red zone means the TDS level in the purified water is above the permissible range, and a warning sign is displayed alongside it.

15 min · beginner

Yellow Zone

Kent — On Kent's Star-series digital-display models, a mineral content indicator sitting in the yellow zone means the TDS level in the purified water is below the permissible range, and a warning sign is displayed alongside it.

15 min · beginner

No Water Input

Kent — On Kent's Star-series digital-display models, No Water Input is a warning sign shown when there is no incoming water supply.

25 min · beginner

Tank Full

Kent — On Kent's Star-series digital-display models, Tank Full means the storage tank has reached its maximum level, so the purifier has automatically stopped purifying and the RO flow rate is not displayed.

15 min · beginner

UV Failure

Kent — On Kent's Star-series digital-display models, a blinking UV-failure warning signal accompanied by an alarm of two beeps means the UV LED has failed — as distinct from a single beep, which on the same models means the UV lamp has failed.

15 min · beginner

Filter Alert

Kent — Kent RO purifiers track filter life via an internal timer.

45 min · intermediate

Leak

Kent — Water pooling under a Kent RO purifier typically originates from loose push-fit connectors, cracked filter housings, deteriorated O-ring seals, or a punctured membrane housing.

30 min · beginner

No Water

Kent — A Kent RO purifier that gives no water, or only a slow trickle, usually comes down to water not being able to get through the system.

20 min · beginner

Red LED Blinking

Kent — A blinking red light on a Kent purifier is a status alert, not necessarily a breakdown — but the distinction matters: on most Kent models a steady red LED simply means the unit is powered on, and a green LED means it is purifying, both of which are normal.

15 min · beginner

UV Fail

Kent — When the UV lamp fails or degrades, Kent purifiers display a UV lamp alert (typically an orange or red indicator) and may stop dispensing water or continue dispensing unsterilised water depending on the model.

30 min · intermediate

Taste/Odor

Livpure — Bad taste or odor from a Livpure water purifier typically indicates an exhausted post-carbon filter, bacterial growth in the storage tank, stagnant water from infrequent use, or contamination from a degraded RO membrane allowing source water flavour to pass through.

30 min · beginner

Won't Auto Shut-Off

Livpure — A Livpure RO that keeps running and sending water to the drain even when the storage tank is full has an auto-shut-off failure.

15 min · intermediate

E1

Livpure — Error E1 on Livpure RO purifiers (Glo, Pep Pro, Zinger, Bolt+, Envy series) indicates that the low-pressure switch has detected insufficient inlet water pressure.

20 min · beginner

Motor Fail

Livpure — When a Livpure water purifier motor (RO pump) fails to start, the unit may appear completely dead, hum without pumping, or start then immediately stop.

30 min · intermediate

High TDS

Livpure — When a Livpure RO purifier stops reducing TDS effectively (output TDS is close to or the same as inlet TDS), the RO membrane has either failed, been damaged by chlorine exposure, or a bypass fault in the internal tubing is routing unfiltered water directly to the storage tank.

40 min · intermediate

GKK Alert

Pureit — Pureit (HUL) water purifiers use a proprietary Germkill Kit (GKK) instead of separate filter cartridges.

15 min · beginner

Slow Flow

Pureit — Reduced water output from a Pureit purifier (water drips instead of flowing steadily, or the tank takes much longer to fill than it used to) indicates one of four problems: low inlet water pressure, a partially exhausted or clogged Germkill Kit (GKK), a fouled RO membrane in RO models, or a blocked dispensing tap.

20 min · beginner

Frequently asked questions

What are the most common water purifier error codes in India?

The most frequently searched water purifier error codes in India include Generic RO Membrane, Generic UF Blocked, Aquaguard Beep Alarm, Aquaguard DRS, Aquaguard E3. Most of these are beginner-friendly fixes that take 22 minutes on average.

Which water purifier brands have the most error codes?

Among water purifier brands sold in India, Kent (15 codes), Aquaguard (12 codes), Livpure (5 codes) have the most documented fault codes. More error codes doesn't mean less reliable — it often means better diagnostic reporting.

Can I fix water purifier errors myself without a technician?

61% of water purifier error codes we cover are beginner-level fixes requiring no special tools. The remaining codes need basic tools (multimeter, screwdriver set) and intermediate mechanical comfort. Every guide includes a "when to call a technician" section so you know exactly where the DIY boundary is.

Time to replace your water purifier?

If repair cost exceeds 50% of a new unit price, replacing is usually smarter. Compare top-rated water purifiers in India.

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