Why Does the Power Trip When You Switch On the Air Conditioning in Summer?
When the heat arrives, many families run into a common problem: the power trips when they switch on the air conditioning. It’s not just annoying; it can also be a sign that something isn’t right with your installation or electricity tariff.
What is a “power trip”?
When we say “the power trips”, we usually mean that the power control switch (ICP) or the circuit breaker trips. This happens for one of these reasons:
- You’ve exceeded your contracted power
- An overload has occurred from using appliances at the same time
- Your installation has a fault or is poorly balanced
Why does it happen more in summer?
During the hot months, air conditioning becomes one of the highest-consumption appliances. If we add fridges, ovens, washing machines or chargers to that, it’s easy to exceed the permitted limit.
A real example:
A home with 3.45 kW contracted that switches on the air conditioning (2.2 kW) + oven (1.2 kW) + TV (0.15 kW) is already on the verge of tripping.
What to do if the power trips when you switch on the AC?
1. Check your contracted power
Many people have less power contracted than they actually need. If you’ve changed habits or added new appliances, the power may need adjusting.
2. Don’t use all your equipment at once
Try to schedule appliance use. For example, if you’re going to cook, avoid running the AC at full power at the same time.
3. Install an energy manager
Some devices let you control which appliances switch off automatically when you near the limit, to avoid abrupt cuts.
4. Split the electrical circuits correctly
An electrician can help you balance the installation’s load to avoid overloads on a specific line.
Is raising the power the only solution?
Not necessarily. At Renovae we’ve analysed real cases where a better time-of-use tariff or a small change in habits made it possible to save without increasing the power.
How much does it cost to raise the contracted power?
It depends on the band requested and the electricity company. Besides the cost per kW, there are administrative charges. That’s why, before changing, we recommend studying whether it’s really necessary or whether there’s a more efficient alternative.
How do I know if I need more power?
Your bill shows your current power. If you suffer frequent trips with several appliances on, or you need to reset the consumer unit often, your power is probably insufficient.
What does Renovae recommend in these cases?
At Renovae we analyse your real consumption, your habits and your appliances to give you a personalised recommendation. Often adjusting the tariff or redistributing usage is enough.
What happens if I do nothing?
Frequent power trips are not only inconvenient; they can damage your appliances and wear out the electrical installation. They also affect your quality of life.
Having problems with your electrical installation this summer?
We can help you avoid these problems before they affect your day-to-day. We analyse your case at no cost and give you a clear, technical solution adapted to your home.