No Power on Hook-Up?
Here’s What Might Be Wrong
LeoBay Journals
Hooked up but no power in your motorhome?
Here are the most common causes and what to check before calling for help
You’ve arrived, plugged in, and… nothing.
No sockets, no charger, no power where you expect it.
It’s a common issue, especially if you’re new to motorhomes or haven’t used your van in a while. The good news is that in many cases, it’s something simple.
Here’s what to check before assuming the worst.
1. Check the Hook-Up Point First
Start with the basics.
- Is the campsite bollard switched on?
- Has the breaker tripped?
- Is your cable properly connected at both ends?
It sounds obvious, but this is one of the most common causes.
👉 At LeoBay Campsite, all pitches have electric hook-up—but it’s always worth checking the supply first.
2. Your RCD or Breakers May Have Tripped
Inside your van, there will usually be a small consumer unit.
Check:
- RCD switch (has it tripped?)
- Individual breakers
If something overloaded the system previously, it may just need resetting.
3. Leisure Battery Issues
Even when hooked up, your system still relies on the leisure battery in many setups.
If your battery is:
- Flat
- Failing
- Not charging properly
You may not get the power you expect.
4. Charger or Power Unit Fault
Your hook-up should feed into a charger or control unit.
If that’s not working:
- Battery won’t charge
- Internal systems may not power correctly
This is where things move from “quick check” to “needs a closer look”.
5. Faulty Hook-Up Cable
Cables don’t last forever.
Check for:
- Visible damage
- Loose connections
- Signs of wear
If in doubt, try another cable if you have one.
6. 12V vs 240V Confusion
This catches a lot of people out.
Hook-up powers your 240V sockets, but:
- Lights
- Water pump
- Some systems
…run on 12V from the leisure battery
So you might have:
- Working sockets but no lights
- Or lights but no usable plug sockets
7. Your Inverter Might Need Switching On
If your van has an inverter, it converts battery power into usable 240V electricity for sockets and appliances.
Some systems don’t activate automatically, which means even when everything is connected properly, you might still have no usable power.
Check:
- Is the inverter switched on?
- Is it showing any warning lights or faults?
- Is it set up correctly for your system?
This is an easy one to overlook, especially on your first few trips.
8. It Might Be Something Simple
A switch in the wrong position
A control panel setting
A connection slightly loose
Modern vans can be surprisingly easy to knock out of sync.
9. When to Get It Checked
If you’ve gone through the basics and still have no power, it’s probably time for a proper check.
Electrical issues can be:
- Hidden
- Intermittent
- Or part of a bigger system fault
Need a Hand?
At LeoBay, there’s an on-site motorhome and campervan workshop with over 30 years of experience.
So if something’s not quite right, you don’t have to figure it out on your own.