Ideal mini he 28 combi On and off

[gingalig]

Hi, hope I can get some help, boiler is fine for hot water, and rads get warm but not hot, calls for heat ignites and runs for about 90 secs then stops about 5 mins later ignites runs 90 secs and stops this seems to go on as a consistent cycle. Boiler lights don’t seem to indicate a fault code, lights with no issue , flame picture is fine. If you turn down the C/H and then back up it fires and repeats as above. Obviously still cutting my teeth and appreciate the help.

 

[Harvest Fields]

Hi, hope I can get some help, boiler is fine for hot water, and rads get warm but not hot, calls for heat ignites and runs for about 90 secs then stops about 5 mins later ignites runs 90 secs and stops this seems to go on as a consistent cycle. Boiler lights don’t seem to indicate a fault code, lights with no issue , flame picture is fine. If you turn down the C/H and then back up it fires and repeats as above. Obviously still cutting my teeth and appreciate the help.

Might be a circulation problem. You need a GSR to have a look for you.

 

[ShaunCorbs]

Might be a circulation problem. You need a GSR to have a look for you.

😀 he is mate

Pump running op ?

 

[Harvest Fields]

😀 he is mate

😛😛😛 Me and late nights clearly do not mix. 😛😛 Check that the pump is spinning freely mate. Or could be a heat ex problem. Have heard the heat ex on these gets clogged easily.

 

[gingalig]

Might be a circulation problem. You need a GSR to have a look for you.

Sorry must be in the wrong forum, I checked the pump and diverter valve

😀 he is mate

Pump running op ?

I checked the pump and diverter valve both appear to be ok, pressure is 1.2 bar there’s water in the rads

 

[ShaunCorbs]

😛😛😛 Me and late nights clearly do not mix. 😛😛 Check that the pump is spinning freely mate. Or could be a heat ex problem. Have heard the heat ex on these gets clogged easily.

I'm clinging on, I'm yawing like a mother trucker

Op old pump with a bleed port ?

 

[gingalig]

Sorry must be in the wrong forum, I checked the pump and diverter valve

I checked the pump and diverter valve both appear to be ok, pressure is 1.2 bar there’s water in the rads

Me and the late nights as well I’m repeating myself, might have to sleep on it

 

[Harvest Fields]

Sorry must be in the wrong forum, I checked the pump and diverter valve

I checked the pump and diverter valve both appear to be ok, pressure is 1.2 bar there’s water in the rads

Nope, just me not looking at the forum properly.😛😛. Got to be a partial blockage somewhere if it was the rectification you would expect it to do it on water as well. Is the heat ex noisy with the heating on?

 

[gingalig]

I'm clinging on, I'm yawing like a mother trucker

Op old pump with a bleed port ?

It’s a Wilo pump does have a bleed port boiler is about 5 yrs old

 

[Harvest Fields]

It’s a Wilo pump does have a bleed port boiler is about 5 yrs old

Did you have the cap off and test with screwdriver?

 

[ShaunCorbs]

Nope, just me not looking at the forum properly.😛😛. Got to be a partial blockage somewhere if it was the rectification you would expect it to do it on water as well. Is the heat ex noisy with the heating on?

Can't be main hex as hot waters fine

Pop the bleed screw out when it's running and get an old flat headed screwdriver and pop it in the hole and apply medium ish pressure if it stops the pump isn't strong enough to push the system water around

 

[gingalig]

Nope, just me not looking at the forum properly.😛😛. Got to be a partial blockage somewhere if it was the rectification you would expect it to do it on water as well. Is the heat ex noisy with the heating on?

A bit of a rattle with the water on

 

[gingalig]

Did you have the cap off and test with screwdriver?

I didn’t , I stuck a screwdriver on the body and listened to the pump with the other end poked against my ear, this may of course not be in the “ how to fix boilers school of thought ”

 

[Harvest Fields]

Can't be main hex as hot waters fine

😛😛I did say pump first though😛😛

 

[Harvest Fields]

I didn’t , I stuck a screwdriver on the body and listened to the pump with the other end poked against my ear, this may of course not be in the “ how to fix boilers school of thought ”

Could be the pump then mate. I would go back and do what me and Shaun have said and test the pump. Definitely sounds like a circulation issue.

 

[gingalig]

Could be the pump then mate. I would go back and do what me and Shaun have said and test the pump. Definitely sounds like a circulation issue.

Thanks for the help chaps, I’ll go back and check the pump.

 

[ShaunCorbs]

Or if you have a difference temp meter measure the flow and return straight out the hex

 

[Harvest Fields]

Or if you have a difference temp meter measure the flow and return straight out the hex

What makes you say that mate?

 

[ShaunCorbs]

What makes you say that mate?

If it's hitting 90 there's your reason why it's shutting down

So then it's either pump or hex like you said

 

[Harvest Fields]

If it's hitting 90 there's your reason why it's shutting down

So then it's either pump or hex like you said

You’ve made me question myself now😛😛😛. The HE is the one with the plate and primary heat ex isn’t it? Not just a primary? Got brain freeze?

 

[ShaunCorbs]

You’ve made me question myself now😛😛😛. The HE is the one with the plate and primary heat ex isn’t it? Not just a primary? Got brain freeze?

I call the main a hex and the hot water a plate hope that helps

I'm signing off lol

 

[Harvest Fields]

I call the main a hex and the hot water a plate hope that helps

I'm signing off lol

View attachment 32053

Sweet dreams 😉😉😛