Ideal icos 18 fault code HF

check the flame sensor is clean

Isconnect from the hive ,it has been known the hive thrmostat fails on ideal boilers.

Okay google you boiler there are two u tube vids on there plus links to ideal boiler manuals .

What type of pump can we use with ideal mexico 2 boiler Google Search ..see if what you are looking for is here

Hi Janice, The link below is a short youtube video showing you how to fix error f1, Take care....CHEERS
https://www.youtube.com/watch?v=o9wpeIvPOb0

ideal icos
H1 fault
FLOW THERMISTOR
part number 170917
check wiring to flow thermistor NOT loose first

ideal icos
H1 fault
flow thermistor
part number 170917
i would check the wiring is secure to the thermistor first

All the combis I've come across merely fail to fire if the pressure is not up. not only do they not fire, nothing else works including the pump and in any event the pump should not overheat just on low pressure.
water loss - try turning off the valves on the flow & return pipes [3/4 inch ones] 1 valve per pipe . This will isolate the rest of the system - rads etc Note pressure over a time period. In this mode the hot water circuit will still work but do NOT use the heating circuit
1/2 bar over 2 days is not serious but it should be found
Once you have either mended the leak in the rest of the system or found there is not one, insist on a replacement boiler
In any event having looked at the reasons given for the fuse blowing, I would definitely get a replacement.
These problems should not happen on a new boiler
I list Worcester.-Ariston-GlowWorm-Ideal- and many others who would confirm this

no but Ideal will post one out to you on request