Don't you just love intermittent faults?

[Billy Bob Bob]

I love you fellas, (in a straight, man love sort of way of course).

I will change the APS tomorrow. I will change the flame rec probe too simply because its a cheap part and the customer has been messing with it.

to date with this fault,with exactly the same symptoms i have replaced around 80 aps,not one rec probe but if they been fiddling i would share your views danny

 

[Dannypipe]

Wow!

Well thanks very much for this insight. I wish I did more on the breakdown side. Some months I'll have loads, other times, it's all installs. My work is nothing if not varied!!

I will change the probe just simply as it's a cheap component, and like I say, I have no idea what he's been doing to it. The blokes a vet, so has no place inside a combustion chamber. He may have bent it, and I don't want to risk having another call out in a month or so if it also fails after I've done the APS.

Thanks very much to everyone. I will change it tomorrow evening (gonna be a late one for me as I have a mental day booked as is!)

 

[Leo21]

As I posted earlier I've had his fault with the probe, the most embarrassing bit is it was me who left it miss aligned after servicing it. Popped it back in line and hey presto. As you say though it's rare and only happened to me once.

 

[Billy Bob Bob]

Wow!

Well thanks very much for this insight. I wish I did more on the breakdown side. Some months I'll have loads, other times, it's all installs. My work is nothing if not varied!!

I will change the probe just simply as it's a cheap component, and like I say, I have no idea what he's been doing to it. The blokes a vet, so has no place inside a combustion chamber. He may have bent it, and I don't want to risk having another call out in a month or so if it also fails after I've done the APS.

Thanks very much to everyone. I will change it tomorrow evening (gonna be a late one for me as I have a mental day booked as is!)

when you fit the modified aps aim the tubing connections towards the fan so make sure the brackets in the right place

 

[Dannypipe]

Cheers all.

I'll let you know how I fare!

 

[wazzer]

ON INTERMITTENT PROBLEMS LIKE THIS i CHANGE THE THERMISTERS THEY CAN READ CORRECTLY ONE DAY/TEMP BUT NOT ON ANOTHER.....You look up and caps lock is on !!!

 

[diamondgas]

Thanks very much. I will look at this.

So if the lead goes closed circuit, the PCB will then the trap is full/blocked. Is this what you test for?

Yeh that's the idea to stop the condensate backing up to far! I've noticed condensation on the insides of the traps and wondered if it in anyway effected the trip? Can recollect replacing a couple of traps and the fault not returning even though the condensate pipe wasn't blocked/frozen! Since then it's one of the tests I'll carry out.

 

[Dannypipe]

Well I've ordered an APS. The original model has been discontinued and replaced with another Honeywell one. (I've had this same thing with a Baxi combi a few years back. This it's the same APS).

Anyway, I'll pick it up tomorrow and go stick it in.

I really need to get another thermistor test lead I miss it.

Done a couple more repairs today. Seem to be having a glut of break downs this week.

 

[Billy Bob Bob]

Well I've ordered an APS. The original model has been discontinued and replaced with another Honeywell one. (I've had this same thing with a Baxi combi a few years back. This it's the same APS).

Anyway, I'll pick it up tomorrow and go stick it in.

I really need to get another thermistor test lead I miss it.



Done a couple more repairs today. Seem to be having a glut of break downs this week.

replacement should be the white round type,not honeywell

 

[Dannypipe]

Ah right, I was looking at the merchants screen, must have been looking at the discontinued one. Thanks Mark.

 

[Leo21]

The white round ones a pig to fit. It catches on the fan, and the looms barely long enough.

 

[Dannypipe]

Oh brilliant!! Looking forward to that then.

 

[Billy Bob Bob]

The white round ones a pig to fit. It catches on the fan, and the looms barely long enough.

you have to aim the tubing ports towards the fan,chuck the tubing behind it,not had a issue with the loom TBH

 

[Leo21]

Are you using the vertical or horizontal one?

 

[Billy Bob Bob]

Are you using the vertical or horizontal one?

cant see the difference aps is in the same place

 

[Leo21]

The ones I get supplied from curzons are vertical with an adaptor securing clip. In the instructions it specifies if its for vertical or horizontal application. There's no clip supplied with the horizontal one. On vertical one the connections foul the plastic cooling fan on the top of the fan spindle. The ones on euro parts are the original Honeywell ones.

 

[Leo21]

Oh brilliant!! Looking forward to that then.

Let us know how you get on, and take some pics when you've got it in. I'm missing something when I fit them. I find them a right cow.

 

[Dannypipe]

Will do. Thanks to everyone.

 

[Dannypipe]

Fitted the APS today. I have taken photos and will upload later. Just this minute got home and thought I'd check my emails while I had a bowl of soup. Which inevitably means I then go on here after!

The APS I was supplied wasn't a Honeywell. The instructions were god awful. After about five minutes of head scratching I figured out how the thing clips in place.

I found that the wiring was very tight, infact I had to cut the cable tie securing the fan and APS wires and then pull some slack just to make the leads fit.

As for it touching the fan, no it didn't, it's close (I guess about 15mm) away, but secure and not touching it.

I'll try to get on later to upload the photos. The APS did have a fault on it, but not one that should have been effecting the boiler. Will explain later, basically it's a 3 wire APS and the boiler uses two of the circuits. The one playing up wasn't the one wired. Hope that makes sense.

Got to go now. Soups getting cold.

 

[Leo21]

It's not just me then, I have to do the same to the wiring loom.