BAXI SOLO 2 30PH DONT WORK!!

[Jonny83]

Hello all hope someone could give me some guidence!

Firstly my Baxi solo doesnt fire up. It has had a new pcb, fan, thermister and over-heat stat. Still only boiler light comes on but fan doesnt run light stays out as well as others. Pump does run but thats as far as it goes.

What could it be?? Engineer keeps scrating his head and now he says it could be gas valve or 3 port valve.
Any guesses before i waste any more money??

 

[twgas]

pos aps or its sensing tubes

 

[Jonny83]

pos aps?? sensing tubes are clear

 

[twgas]

possible that the air pressure switch is not working

 

[Jonny83]

cheers! Should the fan run even if aps isnt working? because fan dont run or by having new aps would this make the fan run?

 

[ChrisR]

The human race is going to destroy itself sooner or later, and deserves no better.
If I can look the answer up in less than half a minute, so can anyone else.

 

[ollski]

The fan won't run if the aps is stuck in the normally open position

 

[Jonny83]

thanks for the diagram i have read a 1000 times over. Tried everything on there and still no joy!! Any More comments ChrisR??

 

[Jonny83]

On that diagram its say 'does fan run' which it dont, and the engineer has followed, done and changed what its says. and guess what still no joy

 

[corgiman]

If the pilot solenoid on the gas valve is open circuit the boiler will do nowt

New gas valve mebbe

 

[Jonny83]

Is pilot solenoid part of gas valve, or is it brought seperate?

 

[corgiman]

part of the gas valve

get you RGI to check it