I have been in the field 10+ years and still will call tech support if i am missing something.
The ice maker on the 11th floor is getting under my skin,
it runs well for 2 days, when I check it on the 3rd day or so it's not running and there is no ice in the bin below, I cleaned all the parts, changed out the probe and set it just like the others are, took the dump valve apart and cleaned it also, when ruuning it goes through the harvest with flying colors,
I know there are a few good pros here, any idea's.
My boss told me to call Manitowoc and ask them if I was tired messing with it, I said hell no this machine is mine and I will figure it out or I will change my name from.
Hilton tech to Ramada Inn tech
Hilton Tech In Need
P.S...if they were as simple as an a\c unit
I have been in the field 10+ years and still will call tech support if i am missing something.
Quality and Value Service and Repair
FreezeKing..
With the looks of things I might have to make the call myself
Mani. has very good service.
The pocket book is also very helpful.
Karst means cave. So, I search for caves.
Long way from a pro but did you check the curtain switch? It's activated either by an adjustable plunger at the top or a magnetic switch at the bottom.Originally posted by hiltontech
....I know there are a few good pros here, any idea's.....
Fred
Ice machine undertaker,
I looked at it some, I only check it to make sure it closed, I had to clean it because of all the calcium build up, it didn't appear that the door was closing snug but is now, what gets me is that the machine will run for 2 days then when I go and check it it's not running, but soon as I take the front cover off it starts up right away, I thought maybe it was a heat issue thinking that when I remover the front cover off it let's heat come out of the unit, it starts up everytime after the cover is removed.
I checked the temp of the water falling down behind the curtain, it's like 18 degrees which I would think is cold enough.
BTW...I had to work on it my first day on the job, I was told that some one had to reset it everyday, it was very dirty and had to air filter on the back of it, I vacumed the coils the best I could and cleaned all parts inside of the unit, we don't have to reset it anymore but it's just as bad by me having to turn it off then on, there is a reset switch inside.
Also, I have the correct water pressure so it's not an issue with the pressure...
It sounds like the curtain is sticking open, this tells the machine that the bin is full. Before pulling the door off next time, reach up in and see if the curtain is stuck open.
Karst means cave. So, I search for caves.
When you call tech support, they will ask you for the Model and SR number. That would also help here and some other data. Like is it a remote.
Unit..
Model: JD0452A
S/N: 921260310
Uses R404A freon
losing connection/conductivity between refrigerant circuit and water panel, causing some ice to stay there and sometimes not, the old mantowics would do this alot. possible problem in evap connections to plate. i've seen wood and other things jammed behind to keep the evap/ice sheet closer togther.kf
Thanks everyone
Sounds like the curtain switch to me too. Make sure the cubes are thick enough and the switch is properly adjusted. Next time it does it look up through the bin door and see if there's a stuck cube holding the curtain out.
I am easily confused.Originally posted by hiltontech
Ice machine undertaker,
..... but soon as I take the front cover off it starts up right away.....
I checked the temp of the water falling down behind the curtain, it's like 18 degrees which I would think is cold enough.
.... we don't have to reset it anymore but it's just as bad by me having to turn it off then on, there is a reset switch inside.
#1 Does it start up right away while you are removing the cover? If yes, it is probably the curtain switch or curtain not closing properly. Check for the machine being level front to back.
#2 If you have 18 degree liquid water, check you thermometer.
#3 Do you have to push the reset button to restart it? If yes, then you still have a heat removal problem.
Check out http://www.manitowocice.com
Fred
Yes it's starts up soon as I remove the front cover, you know you guys bring up a good point about the curtain,
my thinking now is when I remove the front cover it makes a suction inside of the unit closing the curtain and begins working, I will check the curtain out Wed. when I go back to work, we have a new one in stock.
Two heads are better than one it appears
Thanks,
Sometimes to thin of an ice plate will cause a lockout?
Are you having to reset it ? How?.............
Quality and Value Service and Repair
Before I cleaned it I had to reset it, the reset botton is of the right of the curtain,on this model anyway,
I'm not having to reset it anymore, just when I go and check on it it's just not running, but soon as I remove the front cover it starts up right away, some one here thought that it might be related to the curtain, my thinking now is it could be that, I will check on it when I go back to work on Wed.
I changed the probe and serviced the dump valve also, the water level appears to be right along with the water pressure of 20psi.
The freon is also at the right pressure...
Maybe you guys might know of this, with a maker as I'm working on, could it be that the room that it is located just to small, the room appears to be very but it has been at this location for quite a few years and ran fine.
Something else I thought of, after harvest as you know begins heat to drop the ice, could it also be that the heat won't stop and all the ive on the tray is melting?
Sorry guys for driving you nuts with my problem, I'm sure that you have your own problems to deal with
hiltontech, you're bringing back memories to my days as a marriott tech and a, uh *cough* ramada tech.
I was the go-to guy for the ice machines at both hotels. Ice machines...you either hate working on them or love it. I, um...like it.
I did enjoy hotel work. Both places treated their staff pretty well and I learned tons. The last hotel gig was where I made the jump to being a service tech for a contractor.
Until you said your machine was a Mani I was thinking bin stat being your problem, but it sounds like the curtain accomplishes a similar function as a bin stat.
Psychrometrics: the very foundation of HVAC. A comfort troubleshooter's best friend.
Hilton........
This thread should have been posted in the Refrig & Ice Machine section. A lot of us frigies don't check the resi section very much as we typically don't do that kind of work in general.
Anyway.....back in your original post you said the machine ran OK for 2 days and then it was found off on the third day. Then you said it mysteriously started when you took the front panel off and that you also have had to reset the machine with the button located next to the water curtain.
Did you check the board for indications of any safety limit shutdowns? Do you have the Manitowoc Handbook for this machine? If not, then get it soon or download it from Manitowoc's website:
http://www.manitowocice.com
I agree with the general consensus here that the bin switch is the culprit. It can be a real problem to nail down at times as it can fail intermittently. How it fails makes a difference. If it fails open, then you will find the machine off like it had a full bin. If it fails closed you may find a freezeup. It sounds like you have an intermittent fail open situation. Change out the bin switch.
The need to reset the high pressure control is interesting. It could be related to the intermittent bin switch problem. An open bin switch could cause the system to get stuck in an extended harvest cycle on occasion which could result in a tripped HP control when the system kicks back to the freeze cycle. Make sure your condenser is real clean. It could also be caused by a bad condenser fan motor. I've seen a bunch of those fail to come up to speed after a long off period causing a HP trip.
Have fun playing with these machines and welcome again to the forum.
Thanks icemeister,
I will check the bin switch and the fan tomorrow, hopefully it will be solved tomorrow because I have other things I must do this week,
I have a change out to do this week, we have an old Trane that seen it's better days, if everything was as easy as doing a change out I'd be in high cotton
I finally found my problem with the freaking ice maker I have been working on,
It was the BIN SWITCH, well I learned something as they say,
something so simple but yet hard to figure out.
Thanks,
Kevin