Question about Desa International CBN30T Central Heating System Heater
I have got a fault on my halstead platinum boiler when i switch it on there is no red fault light and the boiler sounds like there is alot happening however no hot water or central heating.
however i have noticed that the fan runs some times for a short time then seems to slow down as if there is a slow loss in power.
I have removed the fan cleaned it up and it is very free to turn.
i have tested the Differental switch operation as i thought that if it was that the fan was not creating the vacume.
i am at the moment assuming that it is a fault on the pcb with a bad contact on the relays.
Can anyone help please?
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Posted on Jan 02, 2017
it is likely you have dirty O2sensor, it is incorporated into pilot assembly.turn unit off,use compressed air in a can and blow into spot where pilot flames comes from.this will fix it in most cases.in a small % of time entire pilot assembly needs to be taken apart and cleaned
Posted on Jun 25, 2009
HI right first i would look at a worcester greenstar combl
best you can get and you have full back up from worcester leave all rads with stats as they are i think you will have to remove one , the that would be the bath room also the greenstar comes with a clock bulit in these are on the worcester bosch web site i have been a gas fitter fot 30 years and this what i would go with a really good combi, you can also get awire less room thermostat for this hope this helps
Posted on Feb 01, 2010
Testimonial: "Thanks for your advice. I'll look into the Worcester, but I think it might be more than we can afford!! "
SOURCE: My new heating system is
okay could be a slight blockage in the pipe did he do a hot and cold flush on the system ? pump speed could be too high or low or they could be air lock in the system ,
Posted on Sep 04, 2010
look on the worcester wed site you can down load amanual for this with a fault chart in it , look for a button red?? could be the res et poped out 2bar is too high should be 1.5bar hope this helps
Posted on Sep 26, 2010
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