Compressor broken after 6 years (Ecoforest ground heat pump / well construction Heth)

Hi, Something doesn’t add up in your values. Is there a misplaced comma somewhere? 6.5 years are about 57,000 hours. That would give you a start / h (which I also think is way too much). And a runtime per start of 1/3 h = 20 min per start. What then do the "Starts/hour 35.596" mean? Best regards, Andreas

Yes, that’s exactly how I would interpret the numbers too and I am just as puzzled.

Yes, bad luck is an option.

I understand that a device with a lifespan of 25-30 years can also last only 15-20 years or sometimes even 35-40 years.

But only 6.5 years is really very little and very annoying.

The geothermal heat pump display shows:
Hours: 19672
Starts: 57579
Starts/hour: 35.596

The suspicion of oversizing comes from the specialist company. Let's see how it continues.

I don't want to offend you now, because you have been punished enough with the procurement of the new compressor anyway and I wouldn't wish that on anyone. But your heating system is not maintenance-free and you as the homeowner were not given the operating instructions for no reason.

Who has maintained the heating system? Was it done regularly?

As soon as I saw after the first year that the heat pump starts as shown in the screenshot, the heating technician was at my place the next day. There were just under 9.5k starts on the meter (or one start every 12 minutes). Now, 3 years later, it’s a total of 11.5k starts.

You see, this is not unusual and happens more often, especially when something is defective (RT sensor defective, expansion tank defective, underfloor heating circuits not filled, etc.)

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The display of the geothermal heat pump shows: Hours: 19672 Starts: 57579

First of all, I also think that the heat pump is too large, even if it can modulate down to 3kW. But when I read that you have 3 times as many starts as operating hours, the heating system is really running badly. Sorry. I would rather expect the ratio to be reversed – at least 2-3 times as many operating hours as starts. If the numbers are correct, the compressor has made as many starts in 6.5 years as a well-running heat pump would in 60-100 years. So the compressor has really held up well (but you probably don't want to hear that). Did no one instruct you on the heating system or set it up correctly? What happened during maintenance, did the installer notice nothing – or did you not perform any maintenance, which I would understand since hardly anyone does.

The heating system was of course set up and we were instructed.

There was maintenance carried out by the installing company, which was included.

The offered maintenance contract was so expensive that we did not sign it, especially since the heating system was offered to us as maintenance-free like a refrigerator before the house was built.

The maintenance contract offered was so expensive that we did not sign it, especially since the heating system was presented to us before the house was built as maintenance-free like a refrigerator.

Well, you’re wiser afterwards...

Well, you’re always wiser afterwards...

The compressor is not broken now because we didn’t maintain it, but probably because it was incorrectly sized and configured.