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murv wrote:Asking a customer to check Factory/CC and serial number ranges would be way too complicated.
Agreed. I was suggesting that it shouldn’t be hard for Whirlpool to use their production records to compile a full list models potentially affected. The fact they keep adding to the list doesn’t inspire confidence in their quality management systems.
By releasing them in batches mean they are able to keep up with the demand for repairs or replacements easier. it’s all about numbers 😉
Don
As I mentioned earlier in the thread, in my experience the problem is the wiring block into the interlock rather than the interlock itself. This has been going on for many years. Whenever I see heat damaged door wiring I explain the situation to the customer and then change the terminal block for individual spade connectors along with a new interlock. I can honestly say that I’ve never had the same problem on a machine where I have carried out this modification.
SteveATY wrote:As I mentioned earlier in the thread, in my experience the problem is the wiring block into the interlock rather than the interlock itself. This has been going on for many years. Whenever I see heat damaged door wiring I explain the situation to the customer and then change the terminal block for individual spade connectors along with a new interlock.
I agree entirely Steve. All the failures I have seen were due to bunt out connector blocks, with the lock itself still working fine. But of course I changed the lock as well as the connectors to avoid any risk.
The flimsy forked idc connectors these wiring connectors contain seem wholly unsuitable for the 8-10 amps they have to carry during the heating phase, particularly when they deteriorate due to vibration caused by unstable feet.
SteveATY wrote:I can honestly say that I’ve never had the same problem on a machine where I have carried out this modification.
A word of caution here. As long the wiring harness is not under strain and reliable crimps are used. I have seen one of these previously repaired (not by me) fail at the join between the wiring and the crimp connectors.
stratfordgirl wrote:
A word of caution here. As long the wiring harness is not under strain and reliable crimps are used. I have seen one of these previously repaired (not by me) fail at the join between the wiring and the crimp connectors.
I agree 100{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d}. Another critical aspect of the repair is to ensure that ALL the heat damaged wiring is cut away. It’s really important that this is done correctly as the insulation near the heat damaged connector becomes very hard and will break once the new crimps are attached. If the wires at the interlock are already short in length then it is sometime necessary to ease extra wire through, sometimes as far back as the PCB.
just spotted this when i went to check models affected
model no WMFUG842P UK is listed as affected but
model no WMFUG842G UK is notthey both use same door lock when you look them up. As far as i know the only difference is colour
Dave
The recall is only for models produced with ‘ITW ZV-449’ PTC interlocks.
The WMFUG842P models have been manufactured with several different interlocks including both impulse types and the affected type of PTC lock. As far as I can tell the graphite WMFUG842G version is exclusively fitted with an impulse lock which is not part of the recall.
Murv…
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