That's the most sensible option IMO. Bear in mind your hot water flow rate will be lower depending on model fitted. If your powermax is flued straight through an outside wall then install should be straight forward.
powermax range 155 wont fire
- Thread starter sonofrob
- Start date
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That's what most people are doing. I have 2 of these in let properties. Have had issues but they're not doing too bad.
why ?
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Why what ?
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IF and that is a big if that you require a replacement gas valve, if I remember correctly they come as an upgrade kit and pipework gets altered, the kit is very expensive you would be cheaper getting a Baxi fixed price repair, think its about £200 but the gas valve is more expensive than that
I'm the first one to admit if I'm wrong but why do you think their is no aav in this horrid boiler
also agree above , baxi fixed price is the best way to go imo as ian has said because of price
I have 2 of these in let properties, one is Open, and the other is Sealed. One has an AAV and a level switch and the other doesn't. I wasn't sure which was which so I had a look in the manual, and on the circuit diagram it shows "Water Level Switch" with a note against it which says "N.B. Not fitted on open vent models".
I also found this on Mike Bryant's http://www.powermax-repairs.co.uk/ :-
3) Boiler refuses to light at all, showing the red lock-out light after three failed attempts to start. Several possible reasons for this, but the most common reason in my experience so far is a blocked automatic-air vent (sealed system versions only).
I guess it is easier to lose water and require a lockout on a sealed system and that is why it is on one and not the other.
Andy
I'm talking about the aav ,
the level switch with this being a annoying problem on this boiler going open circuit which stops ignition ( on sealed systems as you say )
From the manual...
`Sealed System' models have an air separation fitting at the back of the boiler. This also houses the water level safety switch and connects the pressure relief valve and automatic air vent.
So I am sure an OV system does not have these parts at all. Switch, AAV, PRV.
`Sealed System' models have an air separation fitting at the back of the boiler. This also houses the water level safety switch and connects the pressure relief valve and automatic air vent.
So I am sure an OV system does not have these parts at all. Switch, AAV, PRV.
Im the first to admit if I've got it wrong (should have looked as from memory ) its got an AV not an AAV on open vented .as i thought you was saying it couldn't be vented for some reason
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R
rules&rulers
sorry to hear you inherited a powermax,not giving gas advice but had 2 of these beasts in previous homes.
even if your engineer can get it up and working he will need to set up/check set up of the replacement gas valve which is easy if he has a digital manometer which can read plus&minus,a tee piece,extra manometer tube,the makers instructions need to be read as the manometer reading is determined by the flue length.
Then other faults will be found,believe me.
Best replace it its the best advice.sorry to say.
even if your engineer can get it up and working he will need to set up/check set up of the replacement gas valve which is easy if he has a digital manometer which can read plus&minus,a tee piece,extra manometer tube,the makers instructions need to be read as the manometer reading is determined by the flue length.
Then other faults will be found,believe me.
Best replace it its the best advice.sorry to say.
loads of advice here,,,great response,,,i think the best thing will be to replace with combi,,,I plan to rent the place out so really want something reliable and not be tortured by tennants coz the powermax keeps playing up......
Time for an Intergas!
will all depend on the flue run these boilers were specified by Architects because of their fluing abilities and were mostly situated in the middle of modern flats
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