Skip to the content
Trustpilot logo 0800 61 22 302

Taking Care of Your Ideal Boiler

Boiler Plan offers a variety of affordable care plans that will help protect your boiler & central heating systems, should anything happen.

Our Care Plans include: 

We're here to give you & your Ideal Boiler complete peace of mind, should any issues arise.  

Ideal Boiler Fault Codes

Fault code Fault


Low water pressure - you can manually reset your boiler pressure


Flame loss


Fan fault 

F4 / L4

Flow thermistor 

F5 / L5

Return thermistor


Outside sensor failure 


Low mains voltage 

F9 / L9

Unconfigured PCB


Flow temp too high or no water flow - you can manually set the flow temperature to the lowest setting if this doesn't work we recommend getting an engineer


Ignition lockout - you can manually fix this with our frozen condensate guide here


False flame lockout - reset your boiler and this should fix the issue


5 boiler resets in 15 minutes - turn the electricity to your boiler off then on to fix the issue


Negative differential flow/return rate 


Flow/return differential > 50°C 


Diverter valve in mid-position for service - turn all of the knobs clockwise, turn the boiler off and on, then click restart

Tired of seeing Ideal error codes?

Why not get a brand new A-rated boiler instead? Get a completely free & personalised quote to instantly find the perfect boiler for your home.

Every boiler installation comes with:

Find out exactly how much a new boiler will cost.  

Ideal Boiler Safety Warning

Make sure you don't do any repair work when working with gas, as by law you are required to be Gas Safe Registered. 

Here at Boiler Plan all our engineers are Gas Safe Registered and will help repair any Ideal boiler may have - all with a smile on their face.

Cosy up with a better boiler company

We exist to be completely transparent – no bull, no waffle, no confusion.