Boiler delayed-ignition

[profpenguin]

Hello

I have hot water heating and had a new Raypak boiler installed last month. Since it has been installed, I have had delayed ignition problems. The installers returned and adjusted the pilot light, which did reduce the frequency of the problem, but it still occurs. They now want to adjust the "differential" between lo-fire and hi-fire, saying that its lighting up on high fire. I am told that it should be lighting up on low-fire and that this will fix the problem.

The force of the ignition is enough to shake the house and can easily be heard and felt. It is intermittent though, sometime not happening for a couple day. Other times it can happen a couple times in the evening.

I am unsure of this fix and feel it might be hiding the real problem, which I am unsure of, and that the boiler's performance is being compromised.

I would like to get other's opinion about what might be wrong.

Thank you

[coolwhip]

Doesnt sound to me like a low/high fire issue...sounds like when you are getting ignition, its a delayed one...this can be dangerous.
You need a good seasoned service tech. to have a look at that.

[profpenguin]

Thank you for your reply.

Their reason for going to low fire is that it will reduce the amount of gas allowing it to light without spilling out. I think that it will only reduce the effect of the delayed ignition since there is less gas.

I am at the point of asking that either replace the boiler completely.

[Pete3]

Shut it off, get some temp. heaters, bill installation co. for heaters & call a company that knows what they're doing. You may blow up your home & kill someone.

[flange]

a local township around here is trying to pass an ordinance to no longer require apprenticed workers. sounds to me like you already dont have that, and guys dont know enough to know its dangerous to allow delayed ignition to continue unchecked. at some point it will get worse, and may even go boom leveling your home. call the owner and tell him you want a real tech NOW to fix this, or call another company.

[chillyzlmm]

^^^x2 call and get an expert . possible lack of combustion air?

[bruingtonbeagle]

is this a propane or natural gas appliance?could be gas pressure regulator issue or gas valve.

[btuhack]

In an effort to get to the bottom of the problem, I would insist on having the mfg rep there for the further diagnosis if at all possible.

Treating symptoms is not safe way to handle gas fired burner problems, root causes are what you want to be resolving.

PS- get the insurance payment out early!

[ccut]

Thank you for your reply.

Their reason for going to low fire is that it will reduce the amount of gas allowing it to light without spilling out. I think that it will only reduce the effect of the delayed ignition since there is less gas.

I am at the point of asking that either replace the boiler completely.

You do want to light off in low fire, however it sounds like you have a delayed ignition problem that won't be cured by merely having it light in low fire. This is serious, and it doesn't sound like that company can resolve the problem.

[stickinit2thman]

sounds like a draft problem, was the chimney lined during the install?is there a draft regulator installed? was anything else changed in to the room/ space the boiler is located?

[REP]

Which control system is on your boiler.There is a possibility of two.
If its a RS i think the pilot light sensor may be dirty.
If propane could be dirty pilot orfice.Could be a box starting to go bad
Could be a lot of things ,need experienced tech there to figure out.