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ok simon i have just found the relevent service book for the model on my boiler cd and it states on page 7 an overheat cut off stat set slightly higher than the high limit stat and acts to turn off the burner to a "RESETABLE LOCKOUT" fig 50 item 3 on page 28 please can...

hi simon can you give me the GC number for the boiler i have looked at all the info i have and on the LS 80t the gc number is 474 81 29 can you confirm which one it is as these do show a manual reset for the overheat on the front panel as with the other models And the overheat stat...

Hi no this will not work because the boiler needs a permanent live for the domestic water to opperate 24hours per day !!! if you want to put an ext clock on it can be fitted to the roomstat link on the board then leave the old clock on 24 hour mode any clock must be...

sounds like its the little star ravenheat boiler LS100T and it does have a plate heat exchanger , but if you are in a bad area for limescale i would have a look at the filter in the giannani diverter valve its on the d h w output from the valve into the plate heat exch,m i bet its...

whichever clock you decide to use it will have to have voltageless switching, then you can leave the exsisting clock in and set it to 24 hour mode then remove the link from the roomstat posistion on the pcb and connect it in place of the link, or you can remove the old clock...

hi have you tried to manually reset the overheat on the front panel there is a screw cap that can be removed and a reset button behind it But if its gone into overheat condition there is a reason perhaps the pump or the heat exch getting clogged up

Hi i see you are still having problems i have just been looking at the ravenheat manuals i have and looking at the 85 csi one i can only see 1 with the 2 sensors 1 above the other which is the csi system one ??? can you tell me the G C number thats found on the front of the book...

ext fuse 3amp fuse 1 --350Mamp fuse 2 ---2 Amp these are the manufactuers electrical drawing fuse sizes mick

Hi the best way is a power flush but does not come cheap but in the long run the system and boiler parts will last a lot longer for instance the plate heat exchanger and the main heat exchanger they would cost a lot more than the power flush as far as the gauge is you will have to...

hi the boiler thermistor controls the heating temp between 35deg C and 85 deg C the overheat stat cuts in at 95 deg c plus or minus it does sound like you might have some sort of blockage unless its a rearly faulty thermistor there are around 11k ohms when cold and decrease in...

Hi do not connect this type of room stat to this boiler ALL EXTERNAL CONTROLS FITTED MUST BE VOLTAGE FREE the old room stat was designed to switch 240v anyway all electrical work must be carried out by iee approved electrician so take his advice do not do it yourself or the...

hi i had a good tip the other day from a boiler manufacturer whilst on a course if you have wilkinson in your area get some of there decking /patio cleaner about £3 a gallon works in about 10 mins just fill it up and leave it to do the job

Hi on these early 24cdi s the hole in the gauges got bocked up easy where it enters the primary pipes because it was very small// on the repacement ones its 3 times the size so you need to replace it this will need draining down of the boiler...

hi the micro switches are opperated by the pump and the water pressure to the hot water side i wonder if you have tried to press the overheat stat that is located under the boiler on the left hand side there are 2 resets one is an ignition reset and this is on the front panel...

i have had lots of problems on jobs with bumping rad valves even reverse flow ones , so i contacted the manufactureres and the said it was down to the lockshield valves not adjusted corectly, i did this and it cured it, i am only talking about reverse flow ones not as other post have...

hi there is not a low pressure switch on these boilers, you only have a primary flow switch and a domestic flow switch, which are opperated by the diverter valve, you might have a problem with the diaphrams on the valve i would sugest you replace the diaphrams before going into...

hi you need the special white plastic key that should have been supplied with the boiler then just follow the instructions in the W B book also check out the freq ask questions

Hi it sounds like the expansion vessel has lost its air pressure due to prob a pinhole in the diaphram allowing water to go into the air side , try pressing the shrieder valve in and see if any air or water comes out?? if no water comes out then the boiler needs draining and the...

Hi regarding the presure in the boiler you have to release water out of the radiator on a rad somewhere near to the boiler when the system is not in use and cold It will opperate at 0.5 bar but the ideal would be 1 bar at standby regarding the clock If you feel confident to...

hi there are several things that can go wrong with the model as you say the boiler is working on the water then 80% of the boiler is ok The first thing to check is the electronic clock even when the light is on it does not mean the inside is switching over and the heating is totally...