Baxi Solo 2 PF clicking noises

[jonno]

I've recently moved house and we now have a Baxi Solo 2 PF - when it switches off we get a continual clicking noise that seems to be lasting longer as time passes - the only way to stop it seems to be by switching timer switch to continuous then back to timed but even then it comes back at times - any ideas ? could it be sticking relay ? would we need a new PCB.
Rang two plumbers lately but neither have turned up !

 

[knuckles]

You need a PCB, 20mins to fit and check operation

 

[ollski]

It is usually the dry joints on the pcb that cause various faults, but this model is also susceptible to cause strange symptoms when a honeywell mid position actuator faults aswell.

 

[past3bar]

Dont buy a pcb till you have checked the integrity of the plastic sensing tubes to APS. These are a lot less than a pcb and tend to crack or disintegrate. a word of warning though, be careful when re-fitting to the metal tubes which run up the back of the boiler as you can easily lose one in the casing!

 

[ollski]

Are you thinking of the original solo pf with the orange control knob?, that one does have problems with the aps tubes, the solo 2 has the aps fitted on the hood right next to the fan.

 

[knuckles]

Why would a clicking sound at rest be associated with a dodgy APS?