A couple of weeks ago, we had a guest to lunch. Among other things, I prepared some basic salads - green salad from a bag, coleslaw, sliced tomatoes, etc. Nothing special. But I'm not good at quantities, so there was a lot left over, which I put out for lunch for the two of us the following day. I was a bit surprised to find that the salad was looking a bit sad and brown around the edges, and that the tomatoes were going soft.
I didn't think too much about it. But by the following day, the tomatoes had fermented, the green salad was going bad, and the coleslaw tasted decidedly weird. I wondered if the fridge was having trouble keeping everything cold enough. But the ambient temperature wasn't any higher than it had been all summer when the fridge had been working without problem.
Our LG fridge is only a little over four years old. Our previous one lasted at least fifteen years without any issues at all. We replaced it in May 2020. I was becoming concerned that it might break down at some point, and didn't want to risk a summer where this might happen. As it was the year of the pandemic, we knew we weren't going anywhere.
We also knew that a more modern fridge would be much more efficient to run. Buying a new fridge, we worked out, would essentially pay for itself within about four years with the saving in electricity. And we had money available. The Sam Vines 'boots' theory worked in our favour.
So fast-forwarding to now, more than four years later, the fridge didn't owe us anything. But still, a four year old fridge ought to be working well. The compressor, the most expensive part, is guaranteed for another six years. And the freezer at the top of the fridge was still working perfectly well.
We needed empirical evidence that there was a problem. So we found a room thermometer, and put it in the fridge. We waited an hour or so, and were shocked to find it showing 14 degrees Celsius. The thermostat was set to three degrees. The app on Richard's phone that connects with the fridge didn't show any problems.
We noticed that the fridge was a bit close to the wall behind it. We thought that might be the problem, and moved it forward a few centimetres. Then we waited another hour, and the thermometer reduced to about 12 degrees. But we hadn't opened the fridge in that time, and the room was cooling a little as the afternoon ended.
On Friday morning, the fridge temperature had gone down to about 6 degrees, but quickly rose back to 10. So Richard went to talk to the owner of the white goods shop where we buy most of our large appliances. He said that he couldn't do anything over the weekend, but would ask an LG engineer to come on Monday.
The owner then asked if we had another way of keeping our things cold enough. When Richard said that we didn't, he said he would get his staff to bring us another fridge for the weekend. This kind of thing is an advantage of the relational culture here, and of being loyal to one shop. Sure enough, an hour or so later two strong guys arrived with a used but clean and functional fridge.
We had bought another thermometer in the meantime, one specifically intended for fridges. A few hours later the visiting fridge had cooled to 3 degrees. So we moved things like mayonnaise and spreads into it. We left unopened cans, nuts and chocolate in our fridge - ten to twelve degrees is an ideal temperature for them, and the borrowed one wasn't as big as ours.
On Monday afternoon, a week ago, the LG engineer arrived. He spoke excellent English, and was happy to talk through what he was doing with Richard. He said that most often this happens when the condenser coils are dirty. We had read that online, but there was no easy way to access them. The engineer pushed the fridge out and removed the back panel.
The condenser coils, which had not been cleaned in four years, were indeed thick with dust and dirt:
The engineer had a machine that blew the dust out. All over the kitchen...
Then he said that would probably solve the problem.
The following day, the fridge was showing about 7-8 degrees, rising up to 9 or 10 any time the door was opened. The borrowed fridge, for comparison, was down to about 3-4 degrees, rising no higher than 5 when the door was opened. So Richard called the LG guy again, and he said that sometimes it takes 48 hours, so we should wait another day.
We waited another day. The visiting fridge was a bit noisy, and using a lot of electricity. It was also rather in the way, but we were getting used to it. And our fridge was not doing much better. We were getting obsessed with the numbers. But we decided that as there wasn't much that would spoil, we would move things back to our fridge and wait another day or so.
Nothing went bad. But the temperatures still weren't right, ranging between 5 and 9. Several websites gave checklists of things that might cause this kind of problem, such an over-full fridge or a faulty seal on the door. The only one that was relevant to us was that the back of the freezer was a bit iced up.
We kept debating whether to call the engineer again... and then it was Friday. We knew that he wouldn't come until at least Monday. On Saturday evening we decided that the following morning we would try to defrost our fridge and freezer entirely. If that didn't work, we would call the engineer on Monday.
So on Sunday morning, at about 6am, I turned on the visiting fridge again. When it had cooled to 3 degrees - which took about three hours - we moved everything out of our freezer as well as from the fridge, and packed as much as we could into the borrowed one.
Then we turned our fridge off at the wall. Richard removed all the shelves, in the hope of accessing the panels at the back. It was an excellent opportunity to clean the shelves - and the fridge - more thoroughly than was possible when it had food inside.