Baxi Combi 105e - no hot water & no heating

[Jennywrens]

when the boiler is switched on, the radiator light comes on to call heat, it then goes out, and the water light flashes, and the fault on fan or flue flashes, and we cannot get hot water, and/or heating (this happened last night)

We switched it off, back on again a few times - nothing.

Left for a few hours, switched back on, and it worked as per ususal - heat, and hot water.

Been on for an hour and a half, and has now reverted back to the flashing water indicator, and the fault on the fan/flu flashes.

I suspect if I turn it back on again soon, it might work again, then revert back.

PCB?

 

[mfarrow]

What does your pressure gauge read?

 

[Jennywrens]

What does your pressure gauge read?

1.5

However, when it did go back to working the once, it went up to 2.5 and in the red. It has never gone above 2.

When I switch it on, it doesn't fire up - you can hear the switches going, but nothing happens

 

[Murf520970]

just pay someone to fix it ?

 

[Jennywrens]

just pay someone to fix it ?

I have already had my engineer out, and he seems to think its the pcb, but he wasn't 100% sure.

I am just trying to pick other peoples brains, as if it isn't the pcb then it's a waste of money

 

[Tibbot]

Having an engineer who can't seem to fault find is already a waste of money.

 

[Murf520970]

look at the fault finding section at the rear of this manual , this should help you determine where its
http://www.baximarketing.co.uk/discontinued-literature/combi-boilers/Baxi-Combi-80e-105e-ins.pdf

 

[Murf520970]

just pay someone to fix it ?

I have already had my engineer out, and he seems to think its the pcb, but he wasn't 100% sure.

I am just trying to pick other peoples brains, as if it isn't the pcb then it's a waste of money

agree with tibbot , going straight in with a pcb is a bit strong , is pump running ? can you hear the fan running ? if no fan running it wont go to ignition

 

[Agile]

.

I am just trying to pick other peoples brains, as if it isn't the pcb then it's a waste of money

How can it be a waste of money?

If the engineer buys a new PCB and it does not fix the fault then you dont have to pay for it.

You pay him to diagnose and fix the fault.

Not to fit random parts at your expense until the fault is found.

I suppose he has not charged you anything?

I always charge to diagnose faults!

Tony