Hotpoint HM315FF freezer light flashes on and off

[electrofix]

well you have to look at the other picture. If the temp is as high as you claim then you may not have a safe freezer. So you have to balance the chance of getting food poisoning

Dave

[Jon Weaver]

electrofix wrote:well you have to look at the other picture. If the temp is as high as you claim then you may not have a safe freezer. So you have to balance the chance of getting food poisoning

Dave

That is a very good point.. Something which has been worrying me.. And thats why I concerned just biting the bullet and replacing it, rather than just faffing around with trying to fix it….

Just to add some ‘evidence’ to my measurments.. I tested my old (30+) fridge freezer in the garage using the same meter.. and the fridge was 0 (clearly a little too cold) and the freeezer -20.. So I know the meter is fairly accurate

[electrofix]

yes meter seems ok so unit has got problems. may only be ice build up but replacing it gives you a warranty as peace of mind.

Dave

[Jon Weaver]

electrofix wrote:yes meter seems ok so unit has got problems. may only be ice build up but replacing it gives you a warranty as peace of mind.

Dave

Cheers Dave.. I might just go for a new one, as you say for piece of mind.. I don’t really need extra worry at this time, so it would be one thing off my mind..

Thanks for your help with this.. I really do appreciate it.

Jon

[Jon Weaver]

I will certainly be coming back for help soon… I have come up with an ingenious plan. I am going to buy the replacement and will then move the faulty one into the garage to see what defrosting does.. If it works, I will scrap my 30 year old fridge freezer and put my HM315 in its place.

If the defrost doesn’t fix it, I can then try to fix it and will have all the time in the world to do so.. So once I get the replacement delivered and installed I will probably be back to ask for advice on how I can fix my old one.

[Jon Weaver]

Hi Dave.. Its been a while.. Coronavirus put everything on hold.. But I have finally had change to write.

I swapped the freezer out for the HM325 and its all good.. This has given me chance to look at the HM315 to see if its actually faulty..

Before I start, I have to make a confession.. I have realsied that I didn’t have enough ventilation.. When I installed the HM315 for some reason I assumed there was enough air flow.. But when I fitted the HM325 I studdied the instructions again and realised that I got it all wrong.. So I have now fitted a large vent into the kick board under the FF.. So its entirly possible that the fault was caused by lack of ventilation?

First of all, Ieft it unplugged for a good few weeks. A bit of water came out, but not as much as I feared…

But when I finally plugged it in, the first time i opened the door I got the 7 clicks, so the fault is exactly the same.

I have taken the board out (I didn’t realise it would be that easy) and all looks good with no obvious scorch marks or component damage.. There is a large resister which was rocking and had lifted its pad, but I wonder if that happened during removal of the board. So I have repaired that..

So do you have any thoughts now as to where I go from here? I could just scrap the freezer, but its in such nice condition and only 10 years old, it seems a shame.

If you have any thoughts as to what I could test, I am all ears.

Thanks in advance

Jon

[electrofix]

well the first thing would be to measure the sensors

there are 2 sensors one on connector W4 of the board and the other on W6

there resistance changes with temp see table

Dave

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