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Post by Mike the Boilerman on Mar 8, 2013 15:57:56 GMT -5
As title, welcome to the forum!
If you have a question about Powermax boilers, select your boiler model from the 'boilers' section then click the "Create Thread" button near the top right hand corner. Enter your question and I'll answer you as soon as I have time, or maybe you'll get an answer from another visiting technician, or another Powermax owner perhaps.
After a while I'm anticipating the forum taking a life of it's own (in the same way that my Gledhill-Repairs forum has) as other technicians familiar with the Powermax arrive and answer questions, and advertise their presence in the 'General' section.
Mike
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Post by Mike the Boilerman on Mar 15, 2013 5:06:36 GMT -5
Hi I have a Promax HE store. Since Christmas it has made a loud rumbling noise when in use. The noise comes on at random times. The only way to stop this noise is to either turn down the thermostat, turn down the heating temperature on the unit or re set the unit. Once this is done it stops instantly and then runs normally until it decides to do it again, which can be up to 12 times a day. If you turn the hot water side off it makes no differnce to the noise, so its only connected to the heating side. We have a homecare plan and they have sent a technician out to look and he changed the pump, this has had no effect at all and the noise continues, the engineer is suggesting changing the heat exchange unit ??. Can anyone out there give me a clue as to what might be causing this issue as we would appear to be shooting in the dark here, when i called Pottertons technical centre they wouldn't talk to me unless I was a plumber! Many thanks Sorry Beakroast, the Promax is not a Powermax, it is a completely different boiler despite the similar name. I'd change the boiler if I were you, it is a bundle of trouble and one of the few boilers I actually decline to work on. Mike |
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Post by Mark on Mar 16, 2013 2:18:54 GMT -5
As title, welcome to the forum! If you have a question about Powermax boilers, select your boiler model from the 'boilers' section then click the "Create Thread" button near the top right hand corner. Enter your question and I'll answer you as soon as I have time, or maybe you'll get an answer from another visiting technician, or another Powermax owner perhaps. After a while I'm anticipating the forum taking a life of it's own (in the same way that my Gledhill-Repairs forum has) as other technicians familiar with the Powermax arrive and answer questions, and advertise their presence in the 'General' section. Mike
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Post by northpole on Mar 16, 2013 5:15:30 GMT -5
Mark,
My neighbours recently had a problem with their Powermax 155x failing to ingite, which showed similar symptoms to those you describe. Like you, I began to wonder if water had entered the burner tubes. The engineer discovered that the electrode had failed, and hence the burner was failing to ignite - a replacement cured it immediately. I'm not qualified in any way as a boiler engineer myself, but until Mike can respond you might take a look at that.
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Post by Mike the Boilerman on Mar 18, 2013 10:55:35 GMT -5
Mark,
This is a 'known problem' with the Powermax. Usually caused, as northpole says, by water filling up the sump from a leak in the tubes or cylinder. It makes a quiet 'swooshing' noise like a dishwasher. Take the FGA screw out and see if you get water out instead of flue gas! Sadly if you do, it's a terminal fault and the only fix is a new appliance.
Mike
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Post by Stef on Apr 25, 2013 17:53:41 GMT -5
Hi Mike,
Would really appreciate your help!
Over the last Two/Three weeks I have been dealing with various issues with a Powermax 155x. My first visit to investigate no ignition, diagnosed non existent electrodes,which I fortunately pre-empted, along with a new burner gasket. Once reinstated the Powermax lit perfectly, but after 10 minutes the unit started making a extremely loud high pitched whistling noise - so loud that it could be heard outside. I did notice whilst replacing the electrode that all of the baffles had corroded away and dropped down inside. This brings me to my second visit armed with new baffles. Replaced baffles, which was not easy but the good news is that it resolved the whistling noise. This brings me onto my third visit to investigate intermittent ignition problem causing loud bang, suggesting a build up of gas in the heat exchanger. After changing the electrode assembly for the second time also replacing the ignition lead and Ranco gas valve for sit type the problem still persists, which when it does happen it's quite scary. The only thing I thinking it could be now is the ignition control board intermittently malfunctioning and either causing a weak spark or somehow allowing to much gas through on ignition.
If you have any idea what could cause this, I would be most grateful.
Kind regards,
Stef
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Post by Mike the Boilerman on Apr 26, 2013 6:57:28 GMT -5
Stef,
Just answered your same question by email. Here's what I answered, for the benefit of anyone else visiting here:
"This is quite puzzling. (Interesting that replacing the baffles stopped the whistle though!)
I'd certainly have expected the change of gas valve to fix it, but as it didn't this suggests it is unrelated to the gas valve. Have you checked the inlet gas pressure? If the meter regulator drops too much on start up this might affect ignition. The control board is a possibility too, but fitting a new one is the only way to tell! (Or a cheap second hand one from ebay, to test.)
Otherwise, have you called Baxi Potterton tech help for suggestions?"
Mike
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Post by amar123 on Oct 12, 2013 6:42:45 GMT -5
hi mike
need your help please. i have powermax 155x. the problem started with a leak from the flow switch. we changed it but then the ignition didn't work {the very next day}. so i called up some other eng, he advised few things need to be changed like psu board or something, expansion vessel and few more. the boiler was working ok from last two weeks but yesterday morning i realized there was no hot water when i checked, the boiler was locked out and pressure was zero. so called the eng, when he came he filled up the pressure up to zero and he restarted the boiler with CH and lock out sign was gone . but after 2 hours it was again locked out this time the pressure was ok at the same time the fan was running non-stop. i had to put it on off mode to stop the fan.
my eng suggests there could be a internal leak because he checked all the radiators and there is no sign of any drip. i dont know what to do can you please suggest anything.
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Post by andy p on Nov 4, 2013 13:43:22 GMT -5
hi ya mike, need to change a timer on a powermax 155x, no buttons are working, does it just unscrew or pop out? many thanks
Andy
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Post by Gill Saxton on Apr 29, 2014 15:53:03 GMT -5
Hi, we have a Powermax 185, last serviced at the end of last year. The last couple of weeks the water has been getting far too hot and now almost scalds. We need to turn the water temp down but can't work out how to do this: we've taken the front cover off but no thermostat is obvious. Not sure why the water temp has changed? Please can you help? Thanks!
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Post by hollow on Jul 16, 2016 17:51:25 GMT -5
powermax he 150 radiators on when hot water selected ,i would say that the diverter valve is faulty but there is that much packed into one of these things. any suggestions besides the diverter valve ?
oh also the radiators where redhot not luke warm .going to have a look tomorrow check see if the diverter valve is stuck mid way
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Post by Alex on Dec 1, 2016 16:39:32 GMT -5
ware is the reset button on a 140 power max boiler
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Post by Rick on Jan 6, 2018 15:08:36 GMT -5
Hi Mike,,, perhaps you can help.... we just moved in and the Powermax HE shows an amber light on on, but no other digital display are working is this normal.... onnline i see there is a constant P09-12 flashing...?
I have no hot water or CH
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Post by Moony on Jan 28, 2018 13:08:02 GMT -5
Hoping someone can help.
I have a powermax range 155. As of late two problems have started.
1. My water pressure now goes down to zero in less than half a day. I have to constantly fill it up from the valve. There is no leak around the boiler, I am suspecting it could be under the concrete floor but not sure how to diagnose or identify specific place. Is there anywhere else or reason why the water pressure would go down so quickly. It used to last for weeks before having to top it up, but since we had a recent repair to the ignition and the boiler locking out the water pressure goes to 0 in half a day.
2. Since having it serviced the cylinder tanks makes a very loud shuddering noise each time it fires up and the ignition comes on. It last for a few seconds then goes, however happens all the time the boiler ignition comes on.
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andytw
New Member
Owner of 2 Powermax 140 boilers and fixer of programmers
Posts: 24 
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Post by andytw on Jan 29, 2018 17:13:08 GMT -5
Hoping someone can help. I have a powermax range 155. As of late two problems have started. 1. My water pressure now goes down to zero in less than half a day. I have to constantly fill it up from the valve. There is no leak around the boiler, I am suspecting it could be under the concrete floor but not sure how to diagnose or identify specific place. Is there anywhere else or reason why the water pressure would go down so quickly. It used to last for weeks before having to top it up, but since we had a recent repair to the ignition and the boiler locking out the water pressure goes to 0 in half a day. 2. Since having it serviced the cylinder tanks makes a very loud shuddering noise each time it fires up and the ignition comes on. It last for a few seconds then goes, however happens all the time the boiler ignition comes on. Usual cause of any boiler losing pressure is faulty expansion vessel or a vessel that requires re-charging. Having a non-working expansion vessel means that the heated water has nowhere to expand to and so gets ejected out of the pressure relief valve to the outside world. Then the system cools down, you have lost water and pressure and have to re-fill. WRT shuddering get an engineer. |
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