Results 1 to 8 of 8
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17-08-2008, 12:24 AM #1
defrost problem with danfoss (help)
can any one help i got a call today to a tesco where there were 9 cases and coldroom systems stuck on defrost for a few hours prior to me arriving.i tried all the obvious stuff switching them all of and on the controllers are all danfoss with a woodley front end. The problem lies with the front end as i disconnected the network from all the cases and they all worked.
The thing is i striped the woodley panel where i was hoping to see a burnt out relay or something but there isnt, there is just a couple of pcb,s and network cables has anyone had this problem and if so how did you fix it?Last edited by coolhibby1875; 17-08-2008 at 12:27 AM.
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17-08-2008, 09:19 AM #2
Re: defrost problem with danfoss (help)
If you reconnect them 1 at a time would you be able to identify which unit is causing the system to stick in defrost mode.Or is it not that simple??Steve
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17-08-2008, 11:02 AM #3
Re: defrost problem with danfoss (help)
did u tryed to sut down all units power supply and pot it back after 5 minit and see how it gos
king
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18-08-2008, 07:49 AM #4
Re: defrost problem with danfoss (help)
i would giv the guys at danfoss a ring there very good .
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18-08-2008, 10:58 PM #5
Re: defrost problem with danfoss (help)
the plot thickens although all the cases i have disconnected from the network are working perfect all the other cases and coldrooms are not getting any defrosts now i have over 60 fixtures iced up or starting to ice up what a totall bloody nightmare (manager doing his nut) turns out the woodley panel is goosed phoned danfoss and they say they might get there this week i wish i could get away with telling tesco i might get there this week!
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18-08-2008, 11:10 PM #6
Re: defrost problem with danfoss (help)
if your controllers are akc114b i am sure you can set them to run on their defrost schedule remote from the panel,but you will have to change controllers manually.this might get you out of a hole.
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19-08-2008, 07:33 AM #7
Re: defrost problem with danfoss (help)
get the rest off the network and go around checking defrost schedules are in they should run ok off the network...ps i hate danfoss ..
sry send pm b4 looking on thread.
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29-08-2008, 07:07 PM #8
Re: defrost problem with danfoss (help)
turns out the front end was overloaded with info and getting its self confussed we downloaded all the old alarms and the likes rebouted it and it is now working a treat
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