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Potterton specialists · Wokingham · RG40

Potterton Boiler Support in Wokingham

For everything that isn't a specific fault code — a boiler that won't start, servicing, whether it's worth repairing an older model, or which Potterton models Stuart still supports. Got an actual error code showing? Look it up here instead →

Potterton at Thermotec
20+ years, all models

Models supported: Promax, Performa, Gold, Suprima, Titanium, Profile — including discontinued ranges.

Repair: from £96 fixed diagnostic fee

Annual service: £96 fixed price

Boiler not working — but no error code showing?

Not every Potterton fault throws a clean code. These are the problems Stuart sees most often that turn up without one.

No power

Boiler completely dead, blank display

Check the fused spur and any nearby RCD first — sounds obvious, but it's the most common cause. If it's definitely got power and still won't wake up, it's usually a failed PCB on older Promax and Performa units.

Won't ignite

Tries to fire but won't catch, no code yet

On some older Potterton models the ignition electrode wears gradually and causes intermittent failed lighting attempts before it ever throws a proper fault code. Worth catching early — it only gets worse.

Inconsistent

Heating works sometimes, not others

Usually points to a failing pressure or flow sensor giving inconsistent readings, rather than a hard failure. These faults are notoriously hit-and-miss about actually displaying a code.

Should you repair or replace it?

Depends on the model and the fault, not just the age. As a rough guide: under 10 years old, repair is almost always worth it. Over 15 years, particularly on Promax and older Suprima units, parts — especially PCBs — are getting harder to source, and if a quoted repair runs to around 40% or more of a new boiler installed, replacement usually works out better value over the next few years. Stuart will give you a straight answer either way, not just the one that leads to a bigger invoice.

Models still supported

Potterton Promax
Most common model Stuart sees across Wokingham. Good parts availability.
Potterton Performa
Compact combi. PCB and gas valve faults common on older units.
Potterton Gold
Higher-efficiency combi. Heat exchanger scaling common in this hard water area.
Potterton Suprima
Older heat-only. Still repairable but parts getting scarcer — honest advice given.
Potterton Titanium
System boiler, generally reliable. NTC sensor faults over 8 years old.
Potterton Profile
Older regular boiler, common in Wokingham's older properties.

Frequently asked questions

My Potterton won't turn on and there's no error code — what's wrong?
Check the display isn't just blank from a power cut or tripped fuse first. If it's got power but genuinely won't start, common causes are a failed PCB, a stuck programmer, or on older Promax units, a worn ignition electrode that fails silently before it throws a proper fault code. Worth a Gas Safe engineer rather than guessing — call 07850 116944.
Is my Potterton boiler too old to keep repairing?
Depends on the model and what's failed. Promax and Performa boilers over 15 years old are getting harder to source parts for, particularly PCBs. If a repair is quoted at more than roughly 40% of a new boiler's installed cost, replacement is usually better long-term value — but it varies by fault.
Do you service Potterton boilers?
Yes — annual servicing for the full range, £96 fixed price. Includes a check of the heat exchanger for scale build-up, the leading cause of Potterton faults in Wokingham's hard water.
Which Potterton models do you still support?
All of them — Promax, Performa, Gold, Suprima, Titanium and Profile, including older discontinued models. Parts availability gets harder on anything before the mid-2000s, which is factored honestly into any repair quote.

Potterton playing up? Let's sort it.

Fixed price from £96 · Gas Safe 599015 · All Potterton models