Boiler Timeclock Replacement Guide | North Devon Plumbing

🛠️ Does Your Boiler Timeclock Need Replacing?

If your Baxi, Potterton, or Main boiler is no longer turning on or off as expected, a faulty timeclock may be the culprit. Many North Devon homeowners experience this issue, especially during colder months.

In this guide, we’ll show you how to replace your boiler timeclock yourself—and when it’s best to call in a professional.

Whether you're in Barnstaple, South Molton, Winkleigh, or the surrounding areas, this DIY tutorial from Jad Mottram Plumbing & Heating has got you covered.

✅ Tools & Parts You'll Need

• ✔️ Replacement Timeclock (Part No. 247206 for Baxi, Potterton, and Main)

• ✔️ Phillips-head screwdriver

• ✔️ Insulated gloves

• ✔️ Your smartphone (for reference photos)

• ✔️ Access to your boiler's front panel

Step 1: Purchase a High-Quality Replacement Timeclock

Look for the correct part number for your boiler model:

• Baxi – Part No. 247206

• Potterton – Part No. 247206

• Main – Part No. 247206

We recommend buying from a reputable supplier online or from a local North Devon heating merchant.

Step 2: Isolate the Electrical Supply to the Boiler

⚠️ SAFETY FIRST:
Turn off the power supply to the boiler at the fused spur. Confirm with a voltage tester if you're unsure.

(Boiler isolation switch)

Step 3: Remove Front Panel Screws

Use your screwdriver to remove both front screws from the boiler casing. Set them aside safely.

(Front panel screw)

Step 4: Access the Timeclock Unit

Drop the panel down and remove the two screws securing the mechanical timer.

(Timeclock housing cover)

Step 5: Disconnect the Old Timeclock

Take a clear photo of the wiring.
Remove the wires from the old timer and reconnect them to the new timer in the exact same sequence.

(Timeclock wiring)

Step 6: Fit the New Timeclock

Position the new timeclock into the housing the correct way up.
Secure with screws and refit the cover plate and front panel.

(Timeclock replaced)

Step 7: Set the Timer

Adjust the clock to the correct current time and set your desired on/off periods.

(Setting the time)

Step 8: Restore Power & Test

Turn the power back on and test your heating system.
Ensure the timer clicks and responds properly during the on/off cycle.

🧠 Pro Tip from North Devon’s Heating Engineers:

If you're unsure at any stage, or if the timeclock still doesn't function correctly, there may be a deeper issue with your boiler’s control board. Don’t take risks—call a qualified engineer.

📍 Local Expertise You Can Trust

At Jad Mottram Plumbing & Heating, we’ve helped hundreds of homeowners across North Devon, including:

• Barnstaple

• Roundswell

• Winkleigh

• South Molton

• Torrington

• Braunton

We’re Gas Safe Registered and specialise in Baxi, Potterton, and Main boiler repairs and installations.

📞 Need Help Replacing Your Boiler Timeclock?

Call Jad Mottram Plumbing & Heating today on 01769 540743 / 07933166664
or email jadmottram@hotmail.com for a fast, friendly, and professional service across North Devon.

✅ Free estimates
✅ Fully insured
✅ Gas Safe registered
✅ Trusted locally