ICI Caladaie

[Biggles..]

I'm having trouble with a ICI solar 80e, not the best combi in the world and a nightmare to fault find on. At the moment the boiler will not fire for heating or DHW. Spoke to technical and they are no use. It appears that there is no voltage from the ignition control to the fan but not sure if its the board or still down to the air pressure switch. does anybody else have any knowledge of these combi's.

 

[fitz1]

test the aps

 

[fitz1]

i am tired now

 

[Biggles..]

Physically the switch makes but not sure if its functioning electrically. Might sound lame but how would you test the switch?

 

[bobw1956]

vaguely remember work on this (crap) boiler approx 18 months ago , had the same problem. ICI Caldia tech were not very tech then either .

Check the blue micro switch on the flow valve, this corrected my problem,

Other problems arose making it uneconomical to repair,had to replace boiler

 

[Biggles..]

What are you looking for with the switch?

 

[bobw1956]

check switch continuity.(primary water flow switch)
I presume the pump is operating?

Is the boiler locking out?

Check 230v at the output from the driver board(pins 5+6) near the fuse

Check 230v at the fan when calling heat/hw

Check continuity on APS(N/C contact)[/url]

 

[Agile]

LCGS, if you dont know how to electrically test an APS then I question if you are CORGI registered?

I would also say that you will be strugling with any modern boiler repair if you cannot use a simple multimeter to do the usual tests.

The APS only has three connections but a PCB can have 20 or more!

The ICI is a perfectly viable boiler if its been properly installed and an RGI takes the trouble to understand them.

Tony

 

[ollski]

Usually the main driver board, have you checked the fuse on it?

 

[Biggles..]

Just for Tony, im a cateering man very rarely, if ever touch boilers but this one is at home.nothing like taking work home with you.
Fuse on driver board is good.
Pump is running and has 240v
240v from driver board to ignition control board via primary flow switch
No voltage at fan
con check on aps is good
if anyone else has any suggestions please feel free to throw them in.

 

[Agile]

The APS requires a back ( NC ) contact to be made before the fan is powered.

First you need to see if the ignition control is being powered, if not perhaps there is an overheat trip which is failed or waiting to be reset. The system flow switch has to make first and then the ignition control looks for the back contact on the APS and then starts the fan. Its possible that the ignition control has failed if everything else is OK.

Catering gas is not a popular job because of the lack of routine maintenance and the general lack of proper cleaning of oil in kitchens. It is one job where the demand probably outstrips supply in big cities.

Tony

 

[Biggles..]

Tony,
Thanks for your explanation and advise its most appreciated.
Lee.