E133
Potterton E133, Ignition failure, no flame detected
HIGHGas supply or ignition electrode fault. Check other gas appliances first; if they work, book an engineer.
Same-day repairs on every Potterton model, Assure, Titanium, Promax, Suprima and older Prima ranges, by Gas Safe engineers who work on Potterton boilers every week. Common Baxi-group parts on the van, honest quotes, one-visit fixes where possible.
Average reply under 10 minutes. No obligation.
Call 020 3000 0000Potterton is part of the Baxi Group, so many of its faults look familiar, the codes and internals overlap heavily with Baxi. In London we see plenty of E133 ignition lockouts on older Suprimas and E110 overheat faults on sludged systems that have never been flushed. E119 low-pressure lockouts are almost always a slow leak somewhere on the system rather than the boiler itself.
Because the parts network is shared with Baxi, Potterton spares are stocked at every major London wholesaler, and our first-visit fix rate stays high. Combine a repair with a proper power flush and a magnetic filter and most Pottertons will run for another decade.
Gas supply or ignition electrode fault. Check other gas appliances first; if they work, book an engineer.
Usually air, sludge or a tired pump. A flush and pump check normally clears it.
Sludge in the heat exchanger or a failed thermistor. Don't keep resetting, the PCB will lock out permanently.
Repressurise to 1.5 bar. Recurring E119 means a leak, book a trace.
Manufacturer diagnostic required, commonly PCB or wiring loom.
Showing a different code? Call 020 3000 0000 and read it to us, we'll tell you what it means over the phone, free.
If your Potterton is over 12 years old and facing a major repair, we'll give you honest repair-vs-replace numbers on site, see our new boiler installation options.
Fixed quote before work begins, 12-month workmanship guarantee, genuine or manufacturer-approved parts.
"E133 on an older Suprima. Full ignition electrode kit fitted from the van, same-day fix."
"E110 overheat. Sludged heat exchanger, power flush plus magnetic filter, no repeat faults."
"E119 pressure loss. Traced a leaking radiator valve in the second bedroom, fixed properly."
Potterton-trained Gas Safe engineers across all 32 London boroughs, 24/7.