How to Switch Off an Aga (The Right Way)

Switching off an Aga isn't as simple as flicking a switch. Whether you're going on holiday, having it serviced, or preparing for removal, we'll walk you through exactly how to turn off your Aga safely. The method depends on whether you've got an oil, gas or electric model, and each needs handling differently.

How Long Does an Aga Take to Cool Down?

An Aga takes 12-24 hours to cool completely after switching off. Oil-fired models typically take the longest at 24 hours, while electric Agas cool slightly faster at around 12-18 hours. The cast iron retains heat exceptionally well, which is why you can't rush the cooling process.

Never attempt to move or service an Aga until it's completely cold. The cast iron can remain dangerously hot for hours after shutdown.

How to Turn Off an Oil Aga

Oil Agas are the most common type we remove. Here's the proper shutdown procedure:

Step 1: Find the oil control valve. This is usually a red wheel valve on the oil supply pipe near the cooker.

Step 2: Turn the valve clockwise to shut off the oil supply completely.

Step 3: Locate the thermostat control on the front of your Aga.

Step 4: Turn the thermostat dial to the "PILOT" position first, then after 5 minutes, turn it to "OFF".

Step 5: The pilot light will extinguish once the remaining oil in the system burns through (usually within 10-15 minutes).

Some older oil Agas have a separate pilot light button that needs pressing to extinguish the flame. Check your model's manual if you're unsure.

How to Turn Off a Gas Aga

Gas Agas switch off more quickly than oil models:

Step 1: Turn the main control knob to "PILOT" position.

Step 2: Wait 5 minutes, then turn the control to "OFF".

Step 3: For complete isolation, turn off the gas supply at the isolation valve (usually a lever near the cooker that moves 90 degrees).

Modern gas Agas often have electronic ignition systems. If yours does, simply turn the control to OFF and the system will shut down automatically.

How to Turn Off an Electric Aga

Electric Agas are the simplest to switch off:

For 13-amp models, simply switch off at the wall socket and unplug if needed.

For hardwired 32-amp models, turn off the dedicated circuit breaker at your consumer unit (fuse box). These should have a clearly labelled "Aga" or "Cooker" breaker.

Newer electric Agas with programmable controls can be put into standby mode using the control panel, but for complete shutdown, always isolate at the mains.

When Should You Turn Your Aga Off?

We often get asked whether Agas should ever be switched off, since many people believe they're always on. Here are the main reasons for shutting down:

Annual servicing - Your engineer will need it cold to work safely

Extended holidays - More than 2 weeks away makes shutdown worthwhile

Summer months - Many owners turn off from June to September

Kitchen renovations - Essential for any building work nearby

Before removal - We always require Agas to be cold before collection

Important Safety Points

Never try to speed up cooling by leaving doors open or using fans. The sudden temperature change can crack the cast iron or damage the insulation.

If you smell gas or oil after shutdown, there may be a leak. For gas, turn off at the meter and call Gas Safe immediately. For oil, check for leaks around the valve and tank.

Always ensure good ventilation when shutting down oil Agas, as fumes can be dangerous if the system isn't burning cleanly.

Restarting Your Aga

When you're ready to use your Aga again, the process isn't simply reversing the shutdown. Oil and gas models need proper relighting procedures to ensure safe operation. We've covered the full process in our guide on how to light an Aga.

Electric models restart easily, but remember they'll take several hours to reach cooking temperature.

Professional Shutdown Services

If you're not confident shutting down your Aga yourself, most Aga engineers offer a shutdown service. This is particularly useful for older oil models where the controls might be stiff or unclear.

We always advise customers to have their Aga professionally shut down before removal. This ensures it's safe to handle and prevents any issues during transport.

The Cost Benefits of Switching Off

Turning off your Aga during warmer months can save significant money. With current energy prices, keeping an Aga running year-round can be expensive. A typical oil Aga costs around £15-20 per week to run, so a three-month summer shutdown saves £200-300.

Some owners worry about damaging their Aga by turning it off. In reality, regular shutdowns don't harm the cooker and can actually extend its life by reducing wear on components.

Before switching off for extended periods, give your Aga a thorough clean. Food residue can set hard during the cooling and dormant period, making it much harder to remove later.