Motorhome electrical problems have a habit of starting quietly. A slightly dim light here. A fridge that doesn't seem to hold temperature as well as it used to. A battery that seems to drain a bit faster than you remember. These things are easy to ignore — until they aren't.

Here are the five warning signs we see most often, and what they usually mean.

1. Your battery drains faster than it used to

If your leisure battery used to last a comfortable weekend and now barely makes it through a single night, something has changed. The most common causes are a battery reaching end of life, a parasitic drain somewhere in the system drawing power when nothing should be on, or a charging system that's no longer keeping up.

AGM batteries typically need replacing every 2–4 years. Lithium batteries last much longer but aren't immune to problems. Either way, faster-than-normal drain is worth investigating rather than working around.

2. Lights flickering or behaving inconsistently

Flickering lights usually indicate a loose connection, corroded terminal, or an overloaded circuit. In a motorhome environment — with vibration, temperature changes and humidity — connections work loose over time. Left unchecked, a poor connection can cause heat buildup and become a fire risk.

3. The inverter keeps cutting out under load

If your inverter trips when you run the kettle or the microwave, it may be undersized for your appliances, overheating, or responding to a low battery voltage it's not happy with. It could also be a sign your battery bank is weaker than it appears — some battery types can show a healthy resting voltage but collapse under load.

4. A burning smell or warm wiring

This is the one that should not be ignored under any circumstances. A burning smell from your electrical system, warm cables, or discoloured wiring are all signs of a serious fault. Stop using the affected system immediately and get it checked. Electrical fires in motorhomes are fast and devastating.

5. Solar panels not producing what they should

If your solar controller is showing lower generation than expected on a clear day, the cause could be a failing panel, a shading issue you haven't noticed, loose MC4 connectors, or a controller that's losing efficiency. A quick check with a multimeter can often isolate the problem.

When to call us

Any of the above is worth a conversation. Some issues are simple to resolve remotely. Others need hands-on diagnostics. Either way, our team is here to help — get in touch and we'll talk you through the next steps.