BoilerFaultCodes.com

Potterton Envoy Plus Fault Codes

Regular Natural Gas 11.72-23.45 kW 1997-2004 Discontinued
GC Numbers: 41-591-1141-591-1241-591-1341-591-1441-591-15

Replaced by: Suprima HE

The fault code is already on your display

Note it down before pressing reset — resetting clears the code immediately. How to read fault codes →

Most common fault codes

1
Your boiler is unable to start up because the internal fan is not spinning at the correct speed required for safety checks.
Gas Safe engineer required · £180-350
2
Your boiler is trying to light the flame but can't quite get the fire started.
Gas Safe engineer required · £120-280
3
Your boiler has tried to light several times but has been unable to create or detect a flame, causing the system to lock out for safety.
May be DIY safe · £120-350

All 18 fault codes

Code Severity Plain English
0 Low Your boiler is currently idle and waiting for a signal from the thermostat to provide heating or hot water.
1 High Your boiler is unable to start up because the internal fan is not spinning at the correct speed required for safety checks.
2 High Your boiler is trying to light the flame but can't quite get the fire started.
3 High Your boiler has tried to light several times but has been unable to create or detect a flame, causing the system to lock out for safety.
4 Low Your boiler is currently operating normally and is heating your radiators.
5 Low Your boiler is simply notifying you that it is currently busy heating up your tap water.
6 Low Your boiler is operating normally and is currently heating the water for your radiators or taps.
7 High Your boiler’s cooling fan is staying on for too long or failing to turn off after the heating cycle, which is preventing the boiler from restarting safely.
8 High Your boiler is struggling to push excess heat away from the unit after it has finished firing, which is usually caused by a water circulation problem.
9 High Your boiler has received a signal to heat your home, but the burner has automatically switched itself off for safety.
A High Your boiler has switched itself off because it has become too hot to operate safely.
b Low Your boiler has detected very cold temperatures and is circulating water to prevent the internal pipes from freezing.
C High Your boiler has stopped working because it can no longer accurately measure the temperature of the water inside the system.
E High Your boiler has temporarily paused operation because it has detected an unusual reading and is waiting for the condition to clear or for a manual reset.
F High Your boiler has tried to ignite but cannot establish a steady flame, meaning your heating and hot water will not work until the issue is resolved.
H High Your boiler has stopped working because it thinks it is overheating or a temperature sensor has malfunctioned.
L High Your boiler's internal computer brain has encountered a glitch and needs to be restarted.
P High Your boiler has stopped working because the water pressure is too low for it to run safely.

Potterton Envoy Plus is discontinued — time for a new one?

Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.

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