Baxi 105e 60 error

[freddy871]

UPDATE On solution for reference. Had boiler engineer out and he repalced Micro switch .. seems to have done the trick.

 

[freddy871]

micro switch replaced by engineer and fine for 2 days but now back as usual

 

[freddy871]

Final Update I hope... Now checked boiler again to diagnose issue myself. Heard a small click and then saw 60 error go out after a while.. Found that Pin on top of diverter valve was not returning to resting position correctly when DHW was turned off., in turn not releasing micro switch. Need to check diaphram and maybe just clean pin to free movement..

 

[imgettingregistered]

60 (low pressure or pump fail) fault. First check your boiler's EV for leaks. The giveaway is system pressure dropping, user tops up, pressure drops, tops up. The air leaked builds up and just like those airlocks jams the back pin high, worsening and worsening until no results. Push down on the pin and then call for heat, pin pops up like a good'un and then drops a little way back on pump stop.

Went through microswitch changes and pumped up the EV twice to 1 bar in order to find this one out the long way round.

Diverter will probably benefit from rebuild due to scale buildup leached lube and stretched diaphragms but do yourself a favour and check the big red EV is sound, otherwise the fault is going to haunt you forever!

Cheers

Adam

 

[freddy871]

hi adam. thanks for your words of wisdom,, fault was a while back now, stripped diverter and refurbs most parts using kit ,, touch wood and whistle been fine ever since, apart from a scare when shower valve was letting cold water by back into hot water system,, thats a whole other story that took a bit of time to find.

 

[denso13]

Thread is 4½ years old. Did you not see the big red warning?

 

[Steelmasons]

Give him a break Denso....won't be long before he's registered..

 

[freddy871]

oooh you gents are harsh..

 

[imgettingregistered]

nice one Freddy.

Now for the knockers..

I found this thread of a search engine. Seems a lot of people looking around for help on the fault and a lot of times the trail goes dead. I was glad to find this thread so much so I joined just to chime in and add my two pennorth to the mix for anyone else who may stumble on this thread through a search engine. Never mind the big red whatever, I thought it useful and to me that is justification enough. Now if others think trying to be helpful by sharing tips is not what this is all about.... well, they know what they can do.

 

[AGAS]

OOooooo that hurt

 

[muggles]

Imgettingregistered will no doubt find himself deregistered fairly quickly if he carries on with that attitude!

 

[Ajinder]

Okay had a similar problem on a job.Customer had a similar problem and kept resetting the boiler until it failed at error 60 and resetting failed to clear error.
Pump working and hot water diverter pin was striking the micro switch and showing continuity.Pressure gauge was correct.
Everything indicated the PCB and it was changed but that didn’t work.Rechecked everything including the micro switch.What I do know about micro switches is they have internal contacts which degrade and are not visible.Your PCB is very sensitive to slight fluctuations in voltage and resistance and trip very easily to error code.The fact that customer used to reset previously made me wonder.The diverter has two identical micro switches so I swapped them around.It worked .Luckily my parts supplier is a good mate and returned £130 for the PCB (not normally done for others) and new micro switch was £17.

 

[DP]

Thread is 4 years old.
I as a heating engineer have NEVER fitted a PCB to return it to the supplier if PCB did not cure the fault (If i use it, it becomes stock item). Reason for that is yonks ago a family member passed away and I was in London for his funeral. Picked up replacement PCB locally to return to Glasgow. Removed the PCB that I had repaired to give customer service. "New" PCB did not work as some scroat had killed the PCB and put it back on the shelf then I gets it. Now if I see an open box that has been tinkered with, I will look at the pCB. If I see the board has been 'used' will reject it or warn the supplier the PCB will be coming back if stuffed.

Can be the microswitch, not always though
Electrical contacts are self cleaning, they do go high resistance but more often the snap action that effects changeover gets screwed.

 

[durhamplumber]

9 year old post

 

[Ajinder]

The reason for the post is to assist people not to get into the same situation and waste £130 when the manual is pointing to a PCB fault while in reality it is the micro switch.Micro switches do go faulty and often intermittently cause error faults as in my case above where the customer was previously constantly resetting before total breakdown.On this repair switching the micro switches took 5 minutes on site and confirmed the fault and will assist somebody in future.All checks had been done and I did not jump into changing a PCB for fun.If you look at other posts this problem has popped up before and people bought PCBs.
The returned PCB was fully functional and the supplier aware and happy to refund,furthermore my customer was very happy it was such a cheap repair.
If I go to a similar repair I will switch the micro switches as part of diagnosis and suggest it to others.
What they do is up to them and this forum is created to assist people.I always buy from my local dealers and yes I have PCBs I am holding in stock.
Your point seems to be a criticism that my functioning PCB was accepted back and how unfortunate you were buying one in London and took back to Glasgow.This may be an old post but I used it 4 days ago to look for help to repair a boiler.
That is what this forum is for and I would be really chuffed if it genuinely helps somebody out when they are stuck.