scratching my head....

[T & H Plumbing]

Got a call about a rad not warming up so I went

Custard says they havnt had heating on for a while and when they turned it on the rad furthest away would not get hot so
I turned all TRV off in the house and waited still no heat, bled every rad water comes out, even emptied the system to clear any air locks still no good, now I'm worried and scratching my head, I start looking at the boiler and it's behavior wall status is calling for heat and the boiler fires up does its normal routine after 5 mins the boiler ignition light goes off and comes back on every so often, is this normal? I'm proper scratching my head on this one could it be the boiler pump broken?? Any ideas would be good I've done all the basics and it's not working grrrr

 

[Rybo_1]

Pump gone and not circulating? Overheating because heats not getting pulled from boiler

 

[gasmanrob]

Trv pin stuck? Lock shield shut?

 

[T & H Plumbing]

When I got to the property rads were working apart from the too farest away and looking at the system the 2 rads are a fair distance, if pump had gone would some rads still work??

 

[T & H Plumbing]

Trv pin stuck? Lock shield shut?

The 2 rads in question did not have TRV fitted and lockshields were fully open, I even added 2 new TRV

 

[Rybo_1]

I've had it before where two furthest away radiators weren't heating up and I could stop the pump quite easily. New pump In and it worked perfectly. Although I did add 3 radiators on to the system around 9 months before

 

[T & H Plumbing]

Can I change a pump with not being gas safe lol or does a GSE need to do it?

 

[AlexGas]

Can I change a pump with not being gas safe lol or does a GSE need to do it?

Can you tell if it's positive or negative pressure boiler?

 

[T & H Plumbing]

I'll take that as don't go near it loool
I was gunna log valient website and put part number in and just change it but if it's too technical ill stick to fitting bathrooms

 

[Rybo_1]

Is it a system boiler??