Problems with Powermax 185 Boiler
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1: you should run the heating for a minute or so in the summer, once a week.it tells you this in the book (its ok no one reads it ) 2:give it a bump with a handel of a screwdriver
The engineer soon found the pump to be siezed... used the screwdriver and hey presto... hot radiators in an instant. He did suggest that the pump may be damaged/siezed... and may be worth getting it looked at... is this true? However since then I have now started firing the CH each day...with some strange results... 1, the pressure gauge shot from it's usual 1.25bar to 2.1 bar.. (never usually moves more than .2bar when running) and the boiler was still firing!! I turned everything off and used the dump valve (red knob inside top casing) to release the excess pressure... back to 1.25bar.... then fired up and the pressure dropped to below 1bar!! anyawy.. after topping up via filling loop the pressure has since held steadyish.. could air in the system have caused this problem? 2, nearly a week on and pump etc all work well, no lock outs etc. but the pressure gauge has dropped again but only very slightly.. less than .2bar.. should I be worried or could the discovery of another cold part rad (air) be the problem? Since new we have had no less than 7 leaks on various rads... I have checked tham all (to the extent of becoming paranoid) and can not find any leaks.. Thanks for listerning...
IS OPEN. (DUMP VALVE)!!!! PRESSURE NEEDS TO BE ABOUT 1 BAR USE A PROPER PRESSURE GAUGE AND MAKE SURE ITS NOT LEAKING WHEN YOU FINISHED PUMPING IT UP GOOD LUCK!
We have a Powermax 155 Boiler which we inherited when we moved into our house in January. All systems where working fine and then we switched the CH off from March. The HW has always worked fine. We have come to switch the CH on the other day and whilst it is showing everything is working fine no hot water is getting through to the radiators. We have tried what everyone has said about banging the pump but still nothing. We have released the valvle slight and quite a bit of air came out. We continued letting it out for quite a while and started to get some steam but no water. Water is coming out of the other pumps and we have tested all radiators. Should we continue to let the steam out with the hope that water will suddenly start to come through, or does anyone have any other suggestions. Otherwise I think its going to have to be an engineer. Thanks
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This morning, the pressure had dropped to .75 bar... again no signs of any leaks... topped up the system and fired up... everything fine.. exept a couple of rads are cold at the bottom.. hot at the top... ! I have since opened fully each thermostatic rad valve fully... as this did seem to help slightly. On the auto air vent (brass lump on top of boiler) this does not have any screw type plasic thingy... should it! Puzzled again!
what overheat sensor did you use ?
how much do you charge to service a Powermax 185 boiler. Mine is about 4 years old, i'm not sure if its ever been serviced? I'm in the griffithstown/Pontypool area.
many thanks for that i'll be in touch soon. Can you let me have your contact number?
I have read your reply to a problem posted and the symptoms sound the same as mine (powermax 185)? I switched the system on (for the radiators) 2 or 3 weeks ago and no central heating! Traced this to the cold start stat - replaced - central heating is now fine. It's now the turn of the hot water. Having worked all summer we now have a small burst of hot followed by some loud knocking/banging and then just a trickle of hot from the taps. System all appears fine at the boiler display, with all the corect lights etc. You spoke about a valve? What valve? Many thanks, Ian, Cardiff.
Very prompt reply ... many thanks. Would that be a 'Themostatic Blending Valve' P665? Ian
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Edited by lobsterlee 6 October 2006, 7:16 PM
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