Error "E 28" on Prestige Boiler


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Old 03-24-15, 07:02 PM
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Error "E 28" on Prestige Boiler

Symptom was our faucets don't give hot water.

Looking at our Prestige boiler it flashes "E 28" on the digital panel.

According to manual, E 28 means "No blower signal present".

When I opened the boiler it's wet inside.

When I turned the switch off then back on the digital panel now flashes "E 04".

According to the manual E 04 occurs "if the service technician tries to reset a hard lockout by turning the boiler OFF and then ON as an attempt to reset the boiler", which I think is what I just did.

Any help appreciated. Thanks a lot.
 
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Old 03-24-15, 07:35 PM
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Where is the boiler assembly located? I'd like to try following the manual's instructions to test for "35Vdc at the connector between the back and white wires (pin 1 & 5)".
 
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Old 03-24-15, 07:45 PM
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When I opened the boiler it's wet inside.
Before you do anything else, you need to find where the water is coming from and correct that issue.

It's possible that the electronics have gotten wet.

Has this boiler been serviced regularly?
 
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Old 03-24-15, 07:51 PM
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It was serviced in January this year (2 months ago) to clean the B&G air separator/autovent. It was leaking at the time. The heating specialist didn't have the replacement part so he just cleaned it. He gave me a quote about a month later to replace the B&G air separator/autovent. I have not had it replaced yet.

The boiler has been serviced regularly. With this new heating specialist that I have (who replaced the air separator), he suggested September as the next diagnostic service, right before the cold months.

Do you think error E 28 was caused by the B&G air separator/autovent?

Thank you, NJT.

EDIT:
The water is leaking from several places -- almost like wherever it could leak like joints it leaks. This includes the air separator/autovent and some pipes above the boiler.
 
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Old 03-24-15, 07:55 PM
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I pressed the "reset" button on the panel and the boiler seems to go through startup cycle -- it made some clicks and the panel displayed 5 62 then 5 64 before it eventually displayed E 28.
 
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Old 03-24-15, 08:31 PM
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My wife and I think this is the part that's leaking:

Name:  20150324_221844small.jpg
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Label reads: "Taco 150PSI Italy 250 F"

The B&G auto airvent is also leaking although does not seem as much:

http://i59.************/oqzz9v.jpg

Would appreciate any thoughts.

I plan to call the heating specialist tomorrow.

Thanks a lot.
 
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Old 03-24-15, 09:30 PM
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This is a common problem with Triangletube.
And I hate to tell you this, but you just bought a blower.
A 40 dollar air vent , just cost hundreds.

We have been piping the air vent to the side of the boiler cabinet for a while now to try to prevent this problem.

Things to inspect with Triangletube,
1) any device above the top of the boiler that could leak inside
2) regularly check the venturi, as flue gas recirc will erode it over time. (an indirect seems to magnify this
3) any device above the smart indirect that might leak on the tank and get under the insulation. (has caused numerous shell ruptures)

There are many more, but these are important.

Your tech should have replaced that vent, or very minimum closed it off so it could not leak.

Part of annual maintenence is inspecting things and correcting any drips.

We just finished dealing with a snow met system that was tied to the heating system. It was filled with glycol and connected to the city water feed. Lots of small leaks eventually thinned out the gylcol to the point where it froze in the slab. Ever tired getting a driveway thawed out in January !!!
The simplest things get overlooked and cost a lot of money!

/end rant
 
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Old 03-25-15, 05:56 AM
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Thank you, TOHeating. Yes, it looks like not a good design on TriangleTube's part. They should at least water-seal the top in case the air vent starts leaking.

I was thinking, is the blower dead and that's why the vents are leaking? Or are the leaking vents the cause of the blower not working?
 
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Old 03-25-15, 06:11 AM
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Water leaked into the case.
This tok out the blower electronics.

There is a rubber seal around the pipe that comes out of the case for the relief valve. Can't fault Triangletube much for poor servicing of the boiler, as much as I would like to sometimes. They don't make the auto vent, which are prone to leaking, and they didn't service your boiler. Only so much a boiler company can do to protect there product from us.

Don't get me wrong, I feel sorry for ya. The blower is an expensive part and it's not your fault it went. Unfortunately I think your stuck with the bill though.
 
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Old 03-25-15, 08:55 AM
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Thank you, TOHeating. I see this on amazon for ~$400. So I guess that plus mark up is what I'll be dealing with.

Just a bit of history, our boiler has had 4 repairs since it was installed Nov 2010, 4 years ago. In comparison the old boiler it replaced has served us 13 years with no repair (and has been in the house longer than that before we moved in). I guess I'm just ranting, but our really old, really low-tech boiler seems more durable than the modern, energy-saver boiler we have now. True, our utility bills went down, but so far, it's hard to digest we could be just breaking even if at all.

The heating specialist will be coming this afternoon.
 
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Old 03-25-15, 08:26 PM
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not an uncommon problem.

There is definetely a connection between boiler repairs and poor installation practices.
Well planned and professionally installed products tend to need less attention.
Having said that, there is more to go wrong with these mod con boilers.

I would not single TT out saying there products are the only ones that suffer such problems, but I was a fan and I am not anymore. At least the prestige series.

I do like the challanger, it's quite a boiler.
 
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Old 03-26-15, 04:39 PM
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All mod/con high efficiency will definitely offer more maintenance issues that can be magnified by installation issues.
Unfortunately your government is discussing on mandating all boiler replacements be 90% high efficiency boilers.
The UK did this some years back and I read an article a couple years later and they claimed the amount of service calls in those two years more then doubled the preceding two years.
Moving away from cast iron and steel boilers is a mistake both financially for some people and our industry is just not ready for it yet.
These boilers need to be properly sized due to no water volume. cast iron is a bit more forgiving as it has more water volume and thermal mass.
I am sure this would take time to argue it out but the mandate is building steam.
 
 

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