There’s nothing more frustrating than waking up to a cold shower or coming home to a freezing house with no heating. At Piran Plumbing, based in Penzance, we understand the inconvenience and disruption caused by a boiler or water heater issue. We specialise in gas and oil boiler repairs, servicing, upgrades, and installations, ensuring local homes stay warm, safe, and comfortable all year round.
While most boiler work must be carried out by a professional, there are a few safe checks you can perform yourself before calling a heating engineer. These involve no technical tinkering or opening the boiler – just simple steps that often prevent unnecessary call-outs.
Why Professional Boiler Work Matters
Boilers are complex appliances, and many problems can be potentially dangerous if handled incorrectly. That’s why it’s important to only let a Gas Safe Registered engineer or an accredited oil boiler professional work on your heating system. At Piran Plumbing, our experienced engineers are trained to safely install, service, and repair boilers, keeping your home secure and your system running efficiently.
Safe Checks You Can Do Before Calling an Engineer
If your heating or hot water suddenly stops, and you feel comfortable doing so, start with these safe, straightforward checks.. They cover the most common causes of boiler shutdowns.
Power, Controls & Settings
Many boiler issues are simply due to power or control settings. These are the easiest and safest checks you can do:
- Check the boiler has power: Look for lights or displays on the boiler. If it’s blank, check the fused spur switch is ON, the fuse hasn’t blown, and the circuit breaker hasn’t tripped.
- Check the thermostat: Make sure it’s set higher than the room temperature, not showing a low battery, and actively calling for heat (look for a flame icon on many models).
- Check the programmer or timer: After power cuts, these can reset. Ensure it isn’t set to OFF or HOLIDAY mode, and confirm the clock is correct.
Fuel Supply
Loss of fuel is another common reason for a boiler to stop working:
- Oil boilers: Check the oil tank isn’t empty and the isolation valve is open.
- Gas boilers: Confirm other gas appliances like hobs or fires are working.
- LPG systems: Make sure the active bottle isn’t empty and the changeover valve is correctly set.
Water Pressure (Combi & System Boilers)
Low water pressure can completely shut down your boiler:
- Look at the pressure gauge on the boiler. If it’s below 1 bar, the boiler may refuse to fire.
- You can safely top it up using the filling loop if you’re comfortable, but don’t force it.
Boiler Reset & Error Codes
Modern boilers often lock out for minor issues:
- Check for error codes on the display.
- Press the reset button (usually hold for 3–5 seconds).
- If the boiler repeatedly locks out, stop and call an engineer – this isn’t something to force.
Radiator & Heating System Checks
If the boiler runs but radiators remain cold:
- Ensure the thermostat is set to a temperature higher than the current room temperature.
- Verify that any time controls or heating schedules aren’t preventing the boiler from sending heat to radiators.
- If you’re comfortable bleeding radiators, use a radiator key to let out trapped air until a steady stream of water appears
Why Choose Piran Plumbing for Your Boiler Needs
At Piran Plumbing, we provide a full range of boiler services in Penzance and across West Cornwall, including:
- Gas and oil boiler installation – We are accredited Viessmann (gas) and Grant (oil) installers, offering up to 10 years warranty on parts and labour for new boilers.
- Annual servicing and maintenance – We keep boilers running efficiently, safely, and in compliance with regulations.
- Repairs and emergency call-outs – Our experienced engineers can diagnose and fix problems quickly.
- Gas and oil safety checks – We can provide certificates for landlords, homeowners, and property sales.
We pride ourselves on punctuality, professionalism, and leaving every workspace clean and tidy. One recent customer wrote:
“Excellent service, we had no hot water or heating and were fitted in quickly by Piran Plumbing. Jack and Harry arrived at 8am as promised. It was a delight to have two young men who both worked so professionally and hard to fit our new boiler.”
– Joy Polglase
Contact Piran Plumbing Today
If your heating or hot water stops and you feel confident, try the safe checks above. If the problem persists or you’re unsure in any way, don’t take risks – it’s what we’re here for. Our team at Piran Plumbing in Penzance is ready to respond promptly, whether you need a boiler repair, servicing, or a new installation.
Keep your home warm, safe, and comfortable with trusted local expertise. Call us today on 01736 351655 to schedule a service or repair.