Potterton Boiler Fault Codes

Your Potterton boiler is one of the most technical appliances in your home. It is also one that you may take for granted until something goes wrong.

Luckily, boilers are clever enough to provide clues to the problem in the form of fault codes. Here we run through them all and what they mean.

What does my Potterton Boiler Fault Code mean?

Potterton boilers can give us with a lot of information through their fault codes, helping professional engineers get a head start when undertaking a repair.

Fault code	Fault
E09	Gas valve connection cable fault
E10	External probe fault
E12	The differential water flow switch is still open
E13	The differential water flow switch is still closed
E15	Fault with the gas valve command
E20	Central heating negative temperature coefficient (NTC) fault
E28	Flue negative temperature coefficient (NTC) fault
E40	Central heating return negative temperature coefficient (NTC) fault
E50	Domestic hot water (DHW) negative temperature coefficient (NTC) sensor (tank boiler) (s.c) or DHW NTC sensor (tank boiler) (o.c.) Fault
E83 / E84 / E85 / E86 / E87	Communication error
E109	Pre-circulation fault
E110	Boiler Max temperature exceeded for gradient (or overtemperature) Probable pump jammed or air in the circuit or Safety thermostat sensor tripped
E118	Primary system water pressure too low
E125	Primary circulation fault
E128	Flame failure (12 times)
E129	Frequent loss of flame (safety error )
E130	Flue thermostat sensor tripped and locked out
E133	Possible gas supply issue (failure to light)
E134	Elapsed time gas valve open without gas
E135	Internal error (interruption of gas supply)
E154	Flow/return sensor temperature test
E160	Problem with fan (possible wiring fault)
E163	Domestic hot water (DHW) negative temperature coefficient (NTC) sensor fault (s.c.) or DHW NTC sensor fault (o.c.)
E270	Dry fire
E317	Wrong power supply (HZ)
E321	Hot water fault
E384	False flame
E385	Under voltage
E430	Water pressure test
E430 + Flame crossed	Water pressure test failed

What is NTC?

An NTC or ‘Negative Temperature Coefficient’ is a type of thermistor (or thermal resistor).

Basically, it’s an electrical component that helps to regulate the temperature of your boiler. So, when you set your heating to a certain temperature it will make sure your boiler stays at that temperature.

Potterton Boiler Safety Warning

When your Potterton boiler error codes or fault lights flash, don’t do any repair work that involves working with gas as you are required to be Gas Safe Registered by law.

Here at Boiler Plan all our engineers are Gas Safe Registered and will do an amazing job with any Potterton boiler repair work you may need.

Protect your Potterton Boiler with a Care Plan

There are a whole host of possible faults to be mindful of when it comes to your combi boiler. Which is why it’s best to be protected should anything unforeseen happen to your own heating system.

With our range of affordable care plans, there’ll be no need to fluster should you see a fault code.

Whatever plan you choose, each comes with an annual service to ensure your system is fully maintained and ready to keep your home reliably warm

Choose from:

Service Plan – Boiler service every year to ensure it’s working correctly
Gold Package – Includes: 3 call outs per year, annual service, carbon monoxide test.
Platinum Package – Includes: Unlimited call outs, all parts and labour, repairs to the entire heating system, £500 towards a replacement boiler.
Boiler Plan Plus Package - For those with a Boiler still in warranty. Includes: Unlimited call outs, all parts and labour, repairs to the rest of your entire heating system.

Take out a care plan

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