Specialized Diagnostics for Daikin, LG, Samsung & Voltas Inverter Models. We repair PCBs, fix Error Codes, and handle R32/R410A Gas safely.
Inverter ACs are basically computers that cool air. They use complex sensors and logic boards.
A normal mechanic tries to “direct” the compressor or fill R22 gas in an R32 machine. Result: Blasted compressor or burnt PCB.
We use Digital Inverter Testers to diagnose the exact communication failure between the Indoor and Outdoor units.
We fix the specific chip, not change the whole machine.
Display showing E1, E5, CH, P4? These are secret language codes. We have the Master Code Dictionary for all brands to pinpoint if it's a sensor, motor, or gas issue.
Inverter ACs rely on 4-5 temperature sensors. If one drifts by even 1°C, cooling stops. We recalibrate or replace these delicate sensors.
We use brand-specific diagnostic tools for each manufacturer










Is your AC blinking? Here is a quick guide:
| Error Code | Likely Meaning | Our Fix |
|---|---|---|
| E1 / E2 | Room Sensor Fault | Replace Coil Sensor (₹450) |
| E5 / E6 | Communication Error | Repair Signal Wire or PCB (₹1200+) |
| P4 / F0 | Inverter Compressor Drive | Check IPM Module / Outdoor PCB |
| EC / OC | Gas Leakage Detected | Nitrogen Leak Test + Refill |
| CH / PH | High Discharge Pressure | Clean Condenser / Check Gas Level |
| U4 / U5 | Indoor-Outdoor Communication | Wire Check / PCB Terminal Repair |
Don’t guess. Let us scan it.
Inverter PCBs are highly sensitive to voltage spikes. A sudden surge can burn the IPM module instantly.
💡 Recommendation: Install a Copper Winding Stabilizer designed for Inverter ACs.
A quality stabilizer can extend your AC’s PCB life by 5-7 years and prevent costly repairs.
These are communication errors. It usually means a sensor failure or a wire break. We have the Code Dictionary for all brands (Daikin, LG, Voltas) to interpret and fix it.
That is how it works! It slows down the compressor when the room is cool to save power. If it stops cooling entirely, there is a sensor issue.
No. Inverter ACs are sensitive to voltage. You need a specific Inverter-Compatible Stabilizer to protect the PCB from surges.
Yes, the “IPM Module” in the outdoor unit is the brain. We repair it in our lab with a 3-month warranty.
It is technically possible but highly not recommended. It destroys energy efficiency and voids the warranty. We advise fixing the Inverter system instead.
This happens if the AC is undersized (e.g., 1 Ton in a large room) or filters are choked. The AC runs at 110% speed constantly. We can diagnose this load issue.
Some modern smart ACs need firmware resets. We know the key combinations to “Hard Reset” the logic board.
Don’t let AC problems disturb your comfort. Our expert technicians are ready to help you today.
Urban AC Repairing is a trusted local service provider in Vadodara, offering professional AC service, repair, installation, AMC, gas filling, wet servicing, shifting, and dismantling solutions. We focus on quality workmanship, transparent pricing, and reliable customer support. Operated from Registered Office in Madhunagar, Gorwa, Vadodara.
Copyright © 2026 Urban Ac Repairing., All Rights Reserved. Website Designed by TaskyMonk