Baxi Solo 2 40 PF Luke Warm Water

[Triumph_GT6]

Gents, as always, random new person with a new question....hope you can help.

Boiler: Baxi 2 40 PF
Age: 13 years
3 Port Valve: Replaced 2008
Pump: Replaced 2011
Problem: Luke warm CH and HW.

Worked fine on Sunday, boiler potentiometer on 1/2, hallway stat set at 20 deg, radiators red hot, hot water red hot.

Tuesday morning, everything Luke warm!

Stripped boiler down this weekend, burner in great condition, injector clean and unblocked. Overall - looks in fine fettle.

Stat in the hall calls for CH when required, boiler fires up as normal. Fan is audible. 3 way port opens/closes etc when the call for HW comes in.

Tried turn up the potentiometer to full, makes little to no difference.
Pump was a little noisy so replaced that to please the missus.

No overheat light comes on.

Any ideas?

How about the boilers thermostat sensor, if knackered could this tell the boiler its up to temp when its not? Shall I replace this as my first port of call?

All help genuinely appreciated. You wont believe how much money you save non-tradesmen.

 

[Billy Bob Bob]

so your a diyer and you striped down your own boiler regardless of the safety aspect involved?

 

[Triumph_GT6]

To say I did it regardless of the safety aspect involved is a little presumptuous. But then again, I did exaggerate when I said "stripped down". Apologies.

To be clear, I took the front off it, inspected the burner, injector and the overall well being inside.

I wouldn't touch the control valve, or any other component I deem to be beyond my level of competency. Sliding out a burner and unscrewing an injector I can manage....

So let me start again, I performed a visual inspection to aid in getting an answer to my problem.

 

[Billy Bob Bob]

right let me be very clear,you removed the combustion door which you being a diyer and is a offence under the GSIUR(GAS SAFETY INSTALLATION AND USER REGULATIONS),as i said you carried out work on a boiler regardless of the risks involved and without the skills or tests required to leave it in a safe working manner,this forum is monitored by gas safe,you can get a fine of up to or exceeding £5000,not wishing to scare you,why take the risk? just get a gas safe engineer to fix it for you

 

[Triumph_GT6]

Okay thanks for the reply gas man, point taken and you are right. I will get a pro in.

So that I am best armed for when the engineer comes, what do we think they might pin the problem on?

Might just get a combi.