Remote solar diagnostic fault identified in 30 minutes
We connect to your inverter and monitoring data, identify the root cause of the fault, and tell you exactly what needs to happen next. Most configuration faults are resolved during the session.
30-minute session · written report · same-day availability
Book now — from £75 →Tell us what you're seeing. We'll work out the rest.
What's included at £75
We review your fault log, generation history, and live readings to pinpoint exactly what's wrong — not guess.
CT clamp direction, export limit, charge schedules, tariff configuration — corrected during the session where safe to do so remotely.
A clear written report of what was found, what was done, and any on-site work required — with an honest cost estimate if needed.
If parts or a site visit are needed, you'll know exactly what they are before committing. No blank cheques.
Book and describe the fault
Fill in the booking form with what you're seeing — fault codes, lights, when it started. We'll confirm a time, usually the same day.
We connect and diagnose
During the 30-minute session we access your monitoring data and inverter readings, identify the fault, and apply any safe remote fixes.
Written report and next steps
You receive a written summary of what was found, what was done, and a clear recommendation — with honest costs if further work is needed.
When a remote diagnostic is the right choice
System producing less than expected but no obvious fault — likely a configuration or monitoring error
Battery not charging from solar or overnight — usually a CT clamp direction error or schedule misconfiguration
Monitoring app showing incorrect data, reversed import/export, or offline readings
Fault code on inverter or battery — we'll identify what it means and whether it needs a site visit
Export limit settings incorrect after DNO change or smart meter installation
Not sure what's wrong — start here before committing to an on-site visit
Safety note: If you smell burning, see arcing, or notice smoke or discolouration around your inverter or battery, isolate at the consumer unit immediately and call 999. Do not attempt to open any enclosures. For these situations use our emergency solar repair service.
What we check during a remote diagnostic
During your 30-minute session, we conduct a comprehensive review of your solar PV and battery system. Here's exactly what we examine:
We review every error code, warning, and fault recorded by your inverter, tracing patterns and identifying which ones need attention and which are normal transient events.
Daily, weekly, and monthly generation patterns are cross-referenced against weather, seasonal norms, and system specification to spot underperformance or anomalies.
We examine charge/discharge cycles, resting voltage, depth of discharge patterns, and state of health indicators to assess battery condition and usage patterns.
One of the most common faults — CT clamps installed backwards cause reversed import/export readings. We validate direction and orientation against live data.
We verify export limit settings match your DNO agreement, especially following smart meter installation or changes to grid connection terms.
Battery charging and export schedules are checked against your tariff, ensuring optimal alignment with off-peak rates and export pricing.
We check inverter and battery firmware versions against manufacturer known issues database, identifying whether updates or workarounds are needed.
We verify data accuracy between your inverter, monitoring app, and our platform, identifying communication gaps, data lag, or sensor failures.
Common faults we diagnose remotely
CT clamps installed backwards
This is one of the most frequent faults we encounter. When CT (current transformer) clamps are reversed, your system reports export as import and vice versa. Your battery may appear to be discharging when it's actually charging from solar, and your monitoring app shows backwards flow. We can confirm this with live data and walk you through the fix — usually a 5-minute correction that doesn't require an engineer visit.
Export limits set incorrectly
After smart meter installation or DNO agreement changes, export limits often remain at old settings. This can cap your system to 0 kW export, prevent battery discharge optimization, or breach your DNO agreement. We validate your settings against your current agreement and correct them remotely if needed.
Battery charge schedules not aligned with tariff
Your battery may be charging during peak hours when electricity is expensive, or discharging when prices are low. Misaligned schedules waste export revenue and increase grid import costs. We review your tariff and adjust charge/discharge windows to maximize savings remotely.
Monitoring app showing reversed or incorrect data
Sometimes your app displays inverted import/export values, shows offline data despite the inverter being online, or reports generation figures that don't match live readings. We trace the data path from inverter through monitoring platform to your app and identify where the disconnect is occurring.
Inverter in standby mode due to grid frequency drift
Grid frequency fluctuations outside normal range (49.8–50.2 Hz) can cause your inverter to disconnect and enter standby. This usually resolves itself, but persistent standby indicates a grid issue or inverter sensitivity setting that needs validation. We check your settings and advise whether contact with your DNO is needed.
Battery not charging from solar due to mode misconfiguration
Your battery may be set to manual charge only, or configured to ignore solar surplus during certain hours. This prevents self-consumption and wastes potential savings. We review your operating mode and adjust schedules so your battery charges intelligently from available solar.
What happens after your diagnostic
Every diagnostic concludes with a clear next step. We don't leave customers with open questions or unclear paths forward. Here are the three most common outcomes:
Most common for configuration issues. We correct CT clamp direction, export limits, charge schedules, or other settings during the session. You receive a written report documenting the changes and your system returns to normal performance — usually within the 30-minute session window.
No further action needed
If physical work is needed — faulty hardware, physical installation errors, parts replacement — we tell you exactly what's required and the cost before you commit. On-site repairs start from £245, and parts are pre-ordered to ensure the visit is efficient and same-day completion where possible.
Clear quote, no surprises
If we identify a manufacturing defect or failure covered under warranty, we document the fault, prepare evidence, and provide all the documentation you need to file a claim with the manufacturer or installer. We handle warranty support at every step.
We provide all documentation
The diagnostic fee is never wasted: Whether the fault is fixed remotely, requires a visit, or needs a warranty claim, the £75 diagnostic fee always translates into faster resolution, fewer wasted site visits, and honest costs upfront. We treat your time and budget with the same care we treat our own.
Questions about the remote diagnostic
We connect to your inverter and monitoring system, review your generation history, fault log, and live readings. We identify the root cause of the fault, walk you through what we find, and apply any settings corrections that are safe to make remotely — CT clamp direction, export limits, charge schedules. You receive a written report summarising the fault, what was done, and any recommended next steps.
If on-site work is needed, we tell you exactly what is required and what it will cost before you commit. The £75 diagnostic fee is not wasted — it means any engineer visit is precisely targeted, with the correct parts identified in advance. On-site solar system repairs start from £245.
All major brands: SolarEdge, GivEnergy, Sunsynk, Growatt, Solis, Enphase, Fronius, Fox ESS, Huawei, Tesla Powerwall, SiEnergy, AlphaESS, Sofar, and most others. If you are unsure whether your brand is supported, contact us before booking.
Yes, you'll need to be available during your booked 30-minute slot. We'll call at your scheduled time, walk you through what we're finding in real time, and may need you to check settings on your inverter or answer questions about how the system has been behaving. This interaction ensures we get the full picture and can make recommendations you understand and trust.
Yes, for most issues. We can review state of charge, cycling patterns, charge/discharge rates, firmware versions, and error logs to diagnose battery configuration and software faults. However, internal battery hardware defects (cell failure, BMS issues causing physical damage) require on-site inspection. We'll tell you which category your issue falls into and what comes next.
Have your inverter and battery brand/model ready — you'll find these on the physical units or in your installation paperwork. A clear description of what you're seeing (e.g., fault code, reversed import/export in app, battery not charging) helps us prepare. You don't need login credentials — we'll ask for monitoring platform access during the session, or you can grant temporary read-only permissions if your system allows it. If you have recent screenshots of error codes or unusual readings, keep those handy to share during the call.
Not sure what's wrong? Start here.
We connect to your inverter and monitoring data, identify the root cause, and tell you exactly what needs to happen next. Most configuration faults are resolved during the 30-minute session.