When your boiler, a central heating system that warms your home and provides hot water. Also known as a central heating unit, it's one of the most critical systems in your house. stops working, it’s not just uncomfortable—it’s a full-blown emergency in colder months. A boiler isn’t like a lightbulb you can swap out. It’s a complex system of pipes, valves, pumps, and controls that all have to work together. If one part fails, the whole thing shuts down. And when it does, you’re left wondering: is this a simple fix, or do I need a whole new unit?
The most common reason a boiler stops working is a loss of pressure, the internal water level needed for the system to run safely. If the pressure gauge reads below 1 bar, your boiler will lock out to avoid damage. It’s an easy fix—most modern boilers have a filling loop you can use yourself. But if pressure drops again within days, there’s likely a leak somewhere in the pipes or radiators. Another big one is a faulty thermostat, the device that tells the boiler when to turn on and off. If it’s not reading the room temperature right, your boiler won’t kick in even if the house is freezing. And don’t overlook the pump, the heart of the system that circulates hot water. If it’s stuck or making a loud humming noise, that’s often the culprit behind no heat or lukewarm radiators.
When your boiler isn’t working, you might also notice no hot water. That’s because most homes use the same boiler to heat both your taps and your radiators. If the boiler’s down, you lose both. Some people panic and call an electrician, but boilers are usually a plumbing and heating job. You need a Gas Safe registered engineer in the UK—not an electrician. Even if your boiler is electric, the issue is rarely the wiring. More often, it’s a broken heat exchanger, a blocked condensate pipe, or a faulty ignition system. And if your boiler is over 10 years old, repairs might not be worth it. Replacement costs are high, but an old, inefficient boiler is bleeding money every month.
Before you call anyone, try these three quick checks: Is the power on? Is the gas supply open? And is the pressure gauge in the green zone? You’d be surprised how many people overlook the obvious. If those are fine and you still have no heat, don’t waste time guessing. The posts below walk you through exactly what to look for, who to call, how to spot a scam repairman, and whether it’s smarter to fix or replace. You’ll find real stories from people who’ve been there, step-by-step guides to simple fixes, and cost breakdowns that actually make sense. No fluff. Just what you need to get your heat back—fast.
If your boiler stops working in Auckland, know who to call and what to check first. This guide covers emergency repairs, licensed engineers, common issues, and how to avoid future breakdowns.
