Varun Smart Water Pump Controller FAQs

Most asked questions by our custoemrers 

Frequently Asked Questions - Varun

A smart water pump controller, like Varun S1, S2, or S3, automates your agriculture water pump operations. It allows remote control without internet for S1 and S3 models, ensuring water savings and energy efficiency for Indian farmers. Ideal for rural areas with poor connectivity, it prevents dry runs and overloads, saving up to 15,740 metric tons of water annually.

Varun water pump automation reduces manual efforts, cutting commuting by 5.3 km per trip for farmers. With features like automatic on/off and scheduling, it promotes sustainable farming across Pan India, from Gujarat to Punjab. No SIM or internet needed for basic models, making it affordable and reliable for types of farms.

  • Varun S1: Remote-only controller with 3 km RF range, no SIM/internet, for single/three-phase pumps up to 40 HP.
  • Varun S2: SIM-based for unlimited mobile range, includes auto features and overload protection.
  • Varun S3: Dual-mode (RF and SIM) with mobile app, patented tech for no-internet areas. All models focus on dry run protection and ease for Indian agriculture.

Yes, Varun smart water pump controllers work with solar pumps using a VFD (Variable Frequency Drive). This setup enhances energy-efficient irrigation for sustainable farming in remote Indian regions.

As a Pan India brand, Varun is available online via dyulabs.com, major e-commerce sites and through our dealers. Contact our Ahmedabad office or dealers nationwide for local purchases. Free shipping and installation guides included.

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Use a multimeter: NO1-NO2 should not connect; NC1-NC2 should. For tester: Live on NC1 means live on NC2; live on NO1 means no live on NO2. Refer to our playlist: https://www.youtube.com/playlist?list=PLZFP1Au_f45XwVHm9DqSE0YHhc7tAoBTt for visuals.

After installation, press and hold the Green (ON) and Blue (Status) buttons until a beep or motor starts. This protects your pump from damage. Video: https://youtube.com/shorts/Ad9zRNfYQNg?feature=share.

Power on the device, use alkaline batteries in the remote, and pair within 10 seconds while keeping it close. If issues, re-pair. Tutorial: https://www.youtube.com/shorts/sMJdP8jHD4w.

Install at 3 meters height with 5-meter cable, ensure line of sight for 2.5-3 km range. Avoid electric poles or metal structures; mount on magnetic surfaces for better signal.

Likely a CT (Current Transformer) wiring issue or malfunction. Verify connection to the correct phase wire. If persists, contact support for servicing.

It may have been enabled accidentally. Press buttons as per enable steps to toggle. Video: https://youtube.com/shorts/Ad9zRNfYQNg?feature=share.

Measure voltages between R-Y-B phases and neutral with multimeter. If blinking/no light, check fuse. New devices: Replace fuse; old: Service required.

Verify if set to Timer Mode accidentally. Switch to Manual or SN mode. If behavior continues, device may be defective – contact support.

Works with any 2-button starter: DoL, star delta, oil starter, oil star delta, submersible (single phase). Multispan relay needed for 3-phase; optional if starter has single-phase prevention.

Yes, use multimeter for phase-neutral voltages or tester for all three phases. Ensures safe operation for up to 40 HP pumps.

Refer to the sticker inside the battery cover (image available in manual). Covers status like pairing, signal, and errors.

Ensure internet on mobile/device, scan QR on device (not remote). Video: https://youtube.com/shorts/kN2OLS6PvDU?feature=share. For complaints, use app or email info@dyulabs.com.

2-year replacement warranty for manufacturing defects. Covers durable build, LCD display, and hassle-free use. Pan India support available.

Email info@dyulabs.com or call our Ahmedabad office. On call us on 09720297101 For Pan India service, use dealer network or ship to 701 - World Trade Tower, Sarkhej-Gandhinagar Hwy, Gujarat 380051.

Pricing varies by model (S1, S2, S3). Visit dyulabs.com for latest details or contact for quotes. Affordable for small farmers, with no recurring SIM costs for S1/S3.

Yes, auto on/off and scheduling reduce energy use by 20-30%.

Ensure antenna setup as recommended. If under 3 km, check for obstructions. Contact for advanced troubleshooting or upgrades.