[tech] [Tech] Coke machine fault

[bob]

Hi All,


So, the new-new-fan from 2017 has now died and my words regarding 
putting in a nice quality fan are coming back to haunt me. This time 
around it is getting a good quality fan!

...but per my last email, this is not a small job. It requires taking 
the whole drink stacks out. This will probably have to happen in two 
events - one to pull the old fan out and spec a replacement, and another 
to put the new fan in. I am extemely time poor at the moment, but am 
willing to help teach someone else about the machine - and what better 
time than when it's in pieces? Committee has already budgeted for a 
replacement fan. At the very least it's a multi-person task to take the 
drink stacks out - is anyone keen on organising a thing?

Cheers, Bob

On 2017-09-11 20:32, Andrew Adamson wrote:
> Hi All,
> 
> I had a look at this tonight along with the other Monday night hardware
> hackers. It looks like the condenser fan has worn out again, which
> explains the slight grinding noise it is making. This is not surprising
> given is has over 50,000 hours on it since it was last replaced in May
> 2012.
> 
> To be clear, this might not be what is making it trip, but it's likely,
> and it needs replacing regardless. It's a bit of a task finding a fan 
> for
> it because the machine runs at 100VAC internally, plus if I recall
> correctly the dimensions were a bit weird. Looking through my emails, 
> the
> motor we bought back in 2012 was an ELCO NUT6B09PUN308. I know a little
> bit more about fans now; it would be good to replace it with something
> from a good brand like Papst, which would likely outlive the machine. 
> This
> is a Good Thing, since you have to dismantle the whole damn machine to
> replace it. Side note to anyone trying to pull out the refrigeration
> module without pulling out the drink stacks: don't, it will bend/break
> the pipes.
> 
> The machine is running for now - if it trips the breaker more than once 
> in
> a day (or is sounding particularly bad when turned back on), I suggest 
> it
> gets unplugged,labelled, and left off until we replace the fan.
> 
> Andrew Adamson
> bob at ucc.asn.au
> 
> |"If you can't beat them, join them, and then beat them."               
>  |
> | ---Peter's Laws                                                       
>  |
> 
> On Sat, 9 Sep 2017, Coffee wrote:
> 
>> Hi all,
>> 
>> Sometime today a fault developed in the coke machine that has lead it 
>> to
>> trip the breaker whenever it is plugged in. I've had a quick look at 
>> it
>> today,
>> and could not detect any obvious faults circuitry on the front of the
>> machine
>> leading me to believe that the most likely culprit is either faulty 
>> wiring
>> causing a short or the refrigeration  has finally died. We are most 
>> likely
>> to
>> spend Monday night fixing the machine if anyone would like to come 
>> down
>> and help.
>> 
>> Zack Wong
>> coffee at ucc.asn.au
>> 
>> 
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