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RalphS.
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November 29, 2014 at 12:05 am #83216
RalphS
ParticipantModel GC2225GEKB
For the past week my RCD has been tripping every 5~7 hours. Fault is transient & RCD resets immediately. Could have been anything in the house.
So went out and replaced consumer unit with a new all RCBO unit (will get it certified very soon) & put the freezer on its own circuit so it wouldn’t defrost. (Besides the RCD was playing havoc with all computers).
Low & Behold it was the freezer that is the problem.From what I have read here, I guess it is the defrost circuit. However I would like some input please.
Is it an easy job to replace? Anyone know the part number? If not anyone know a reliable engineer who could do it in the HA8 area.
Separate long term fault is the ice making controller which has a mind of its own. Think it is OK mechanically, but the Water Crush Cube Selector rarely delivers the intended selection. Ask for water, delivers ice without opening the flap! Am quite adept with a soldering iron / meter if it is one or two components on the PCB that has failed.
Thanks in advance for your help.
November 29, 2014 at 5:51 am #422072spimps
ParticipantRe: Maytag RCD problem
Hi,
could be the defrost circuit, also maybe compressor, condenser fan motor or water on electrics somewhere.
You need an engineer equipped with a meggar (tests for insulation faults)which will be used to find the guilty component, then when repaired it needs testing again with a meggar to ensure it’s safe for you or anyone else in the family to use.
Not a repair for an unqualified person IMO,my advice is to bite the bullet and get an engineer in, what if you make the wrong decision and it’s not the element, taking a gamble could cost you unnecessary expense.November 29, 2014 at 9:22 am #422073SAMURI
ParticipantRe: Maytag RCD problem
On your model if it trips every 5 to 7 Hours then it is most likely the defrost heater.
It is best for an engineer to fit as they are not cheap and if you are not carefull you can damage the evaporator fitting it.
Also an engineer can sort out your Icemaker fault at the same time.
Try the find an engineer on this site.
Bob
December 1, 2014 at 7:02 pm #422074RalphS
ParticipantRe: Maytag RCD problem
Thanks Spimps & Bob.
Sorry for the delay in replying. Was in France all weekend &
Can’t access Maytag’s UK or US website (& trouble with many others including here). Won’t resolve / BT’s DNS server seems to have fallen over….The original leakage was always momentary. Resetting the RCD, 10 seconds later, fault is clear.
I have accessed the condenser which was partially frosted / iced up. Just above it the thermostat & connectors had a lot of ice on them; probably the point of earth leakage. I have taken the defrost heater out to test it. 121 Ohms which seems too high (No leakage to the element’s outer casing). But I can’t find any data relating to a UK model. US ones have ~23 Ohms, so I’m guessing say 50 Ohms or less.
(Oddly if it was the thermostat that is faulty, it would require the wiring to be cut to replace it.)
Have defrosted with a hair dryer & reassembled without the heater to test for earth leakage. Will take say ~7 hours. (OK after 5 hours)
Meanwhile I am trying to source a new heater, but most of the ones I find look different to mine. It is a simple L shape with a single dual in-line oblong connector. It has a component in a clear plastic tube, in series with the wiring, strapped to the top of 1 leg of the element.
Think this 4Maytag one might be right, if I can’t source elsewhere…
http://www.4maytag.co.uk/defrost-heater-evaporator/product.pl?pid=1806214December 1, 2014 at 7:29 pm #422075SAMURI
ParticipantRe: Maytag RCD problem
Hi from Bob
The heater for your model is now obsolete.
The good news is the heater on your link is a direct replacement and will fit.
BobDecember 6, 2014 at 8:57 am #422076RalphS
ParticipantRe: Maytag RCD problem
Update
I reinstalled the heater & the RCD tripping returned.I found a genuine 67007091 on Amazon £27.49 delivered (out of stock & more money now). Fitted it, which involved a few scuffed knuckles and numerous expletives…
18 hours later, no RCD tripping. I assume it is defrosting….
Testing the old heater, it has a resistance of 121 ohms which equates to roughly 0.5kW heater. However there was only about 1.5M ohms highly variable resistance between the element & the heater casing, which by my calculations would be just enough to trip a 30mA RCD.
Next: I’ll take out the Ice / Water dispenser PCB to re-flow suspect solder joints to cure any dry joints.
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