Smart Meter Not Working Properly? (UK Fix Guide + What To Do Next)
Quick answer: If your smart meter isn’t working properly, it’s usually a communication issue, installation problem, or setup fault — not a broken meter. This guide explains what’s actually going wrong and exactly what to do next.
What does “not working properly” actually mean?
Most people assume their smart meter is broken — but in reality, it’s usually one of these:
- Not sending readings to your supplier
- Showing estimated bills instead of real usage
- Gas meter not connecting to electricity meter
- In-home display (IHD) not updating
- Smart features not working after switching supplier
In most cases, your meter is still recording energy usage — the problem is the data isn’t being shared properly.
The 3 most common causes
1. Signal / communication problems
This is the biggest cause of smart meter issues.
Your meter needs a working connection to your supplier (WAN) and between devices in your home (HAN).
👉 Smart meter signal problems explained
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2. Not commissioned properly
If your smart meter wasn’t fully set up during installation, it may look like it’s working — but won’t function correctly.
👉 Smart meter not commissioned properly
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3. Supplier or system issues
Sometimes your supplier can see your meter — but can’t fully use it (for example, for smart tariffs or readings).
👉 Supplier can read meter but not use it
Common smart meter problems (quick links)
- 👉 Smart meter not sending readings
- 👉 Not sending half-hourly data
- 👉 WAN light flashing
- 👉 WAN light flashing red
- 👉 WAN flashing every second (comms hub distress)
- 👉 Gas meter not connecting
- 👉 IHD not working
Billing problems linked to smart meters
If your smart meter isn’t working properly, your billing will usually be affected.
- 👉 Why your bill is estimated
- 👉 Why your direct debit keeps increasing
- 👉 Why your smart meter isn’t saving you money
What actually fixes smart meter problems?
There’s no simple reset button for most smart meter issues.
In most cases, it requires:
- An engineer visit
- Comms hub replacement or upgrade (often to 4G)
- Recommissioning the meter
- Fixing supplier-side configuration issues
👉 The key is identifying the correct cause first.
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What should you do next?
If your smart meter isn’t working properly, don’t ignore it.
Over time, it can lead to:
- Estimated or incorrect bills
- Loss of smart tariff benefits
- Ongoing meter or data issues
Contact your supplier and clearly explain:
“My smart meter is not working properly and appears to have a communication or setup issue.”
If it takes too long to fix, you may also be entitled to compensation depending on the delay.
Your rights
Under Ofgem’s Guaranteed Standards your supplier has 5 working days to provide a resolution plan once you’ve reported a fault. If they miss that deadline you may be entitled to £40 automatic compensation. If your problem isn’t resolved within 8 weeks you can escalate to the Energy Ombudsman — free of charge.
Generate a formal complaint letter →
All advice on SmartMeterHelp is independent. We’re not affiliated with any energy supplier.