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No heat or hot water - PCB?

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djames77

Hi All

I need some advice just really to check i'm not being mislead - i'll try to describe the problem as best i can but i've not technical understanding at all!

We have a baxi combi boiler around 7 years old and this stop working on Friday - no heat or hot water.

I had a local engineer round yesterday who spent about 45 minutes looking at the boiler. He did a test on the fan (one with a voltage tester and one with a screw driver thingy with a light in it) Voltage pen did pick up current but the light did not come on in the other thing. He feels that the voltage tester was picking something else up from wires around the fan.

He has diagnosed the problem as the PCB and is coming back to fit. My concern is he says he cannot promise this will resolve the problem. I can understand other components could have caused the PCB to fail but surely these can be tested before changing the PCB? If it was the fan for example, could this not be checked?

I am being charged £200 for the call out and to return with the pcb and to fit inclusive of VAT which i think is decent. I just don't want to end up in a situation where I have to have another PCB and other components which could see the cost escalate quickly. Any advice would be greatly appreciated.
 
Just get somebody around for a second opinion.

To me, I wouldn't be using a volt stick to diagnose. It should of been done with a multimeter
 
Do you know the model baxi you have? Any lights flashing/staying on on the front, display readings? As SimonJohns says, a light stick doesn't tell you much. Fault finding is a process of elimination and way down the list comes the PCB usually IMHO
 
Do you know the model baxi you have? Any lights flashing/staying on on the front, display readings? As SimonJohns says, a light stick doesn't tell you much. Fault finding is a process of elimination and way down the list comes the PCB usually IMHO

Hi I don't know the model i'm affraid. It has a green light on the front and two other led's that are unlit - water and heating i think. It has a switch for off, water, heating, both or reset on the bottom left and the water level gauge bottom right.

He spent 45 mins here yesterday so I assume he dd more checks, i didn't fully see what he was doing, partly because the boiler is in the loft and partly as i thought best to leave him to it. Just concerned that he cannot say for sure what the prob is and i'm spending money on something that might not fix it.
 
It sounds like a duotec? If it is then in the middle of the "neons" is an LED display. That'll usuallt scroll a fault code to help diagnostics E - -?
 
It sounds like a duotec? If it is then in the middle of the "neons" is an LED display. That'll usuallt scroll a fault code to help diagnostics E - -?

Just had a look on the internet and found the one I have - Baxi Combi 80 Eco It doesn't have anything to display a fault code on it.
 
id be getting a second opinion myself , but if hes gone for parts you might be a bit late ,
 
id be getting a second opinion myself , but if hes gone for parts you might be a bit late ,


OK, i might put a call into someone else then and see if they could pop out shortly. Is it normal to ask someone to have a look, diagnose and give me a quote? If so, how much should i be looking to pay for this?
 
All depends.

Why don't you post on the looking for a plumber thread

May get someone close to you on here
 
All depends.

Why don't you post on the looking for a plumber thread

May get someone close to you on here

Thanks, I have done just that. I've also put the guy that came out on hold, he has not yet picked up the part.
 
Can you hear the pump run?
if so these have an overheat stat which can be reset simply by pushing it in
has he checked this? very simple amd i have had a few do this!
 
Just had a look on the internet and found the one I have - Baxi Combi 80 Eco It doesn't have anything to display a fault code on it.

Well I couldn't have been more wrong in my thoughts regards model :) However It makes the PCB even further down the list IMO ... Good to hear you're going for a second opinion even if it does turn out to be the PCB. :)
 
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