Mitsubishi Electric UK Anmeldelser 

Have paid for the diamond service since install in 2020. I'm not sure what has gone wrong in the booking offices but somebody needs a serious rocket. How can a firm such as mitsubishi take your money and be incapable of having someone who can look at a calendar and book in a service slot????. After several emails over a period of months I finally got date and an Am prioritised time slot. As a self employed person having time off cost me money. Shameful. On a plus note Phill the engineer turned up Pm. . Phills 2nd visit. Phill is clean and tidy and very professional. Shame the office staff let him down.

Very disappointed with Mitsubishi sending out a subcontracted company to us.

This company advised alteration work to address some issues we were having. After this was completed we had even more problems! Multiple attempts to contact them have been ignored. In the end we've had to source another reputable company. Their engineer, who used to work for Mitsubishi, immediately recognised the faults and highlighted that the alterations to our system from the previous subcontractors were completely incorrect for our type of unit.

We now have to pay to reverse all the incorrect works carried out by the company Mitsubishi originally sent to us!

I would advise anyone booking through Mitsubishi to request a Mitsubishi engineer only and not one of their service net members. Why pay Mitsubishi prices and then get sent cowboys.

Very professional and very pleased you was able to sort out our issues Phil is the only competent person we have had here. Very friendly and explained everything he done to us
Thank you Phil 🙂

Had a service today (Engineer Phil) He went above and beyond to solve a heating problem as well as completing the service on our boiler. Gave us great advice on what we need to do to fix the fault and relayed this back to the head office to allow us to the get quicker assistance in the future.

We had a bad experience with a contracted engineer through Mitsubishi who had visited us and caused a bigger problem with our system, resulting in us having to call in an emergency engineer to fix a leak that had been created. After complaining, Mitsubishi arranged a second visit with a Mitsubishi employed engineer (not a contractor) called Phil. He knew exactly what he was doing and rechecked the system, fixing areas that should’ve been picked up on the first visit. This is a mixed review as we were disappointed by the contracted out engineer but very impressed with Phil who did a good job cleaning up the mess left by the first engineer. If only Mitsubishi could’ve sent a Mitsubishi engineer rather than a contracted out company, in the first instance, we might not have had so many issues. I would give 5 stars to Phil, but 3 stars based on the whole experience.

I have been on a 3 diamond contract for over 12 months and this is my 2nd annual service. Chris came and I couldn't be more pleased with his whole approach and service. He works directly for Mitsubishi and is not a subcontractor. Chris is a credit to Mitsubishi, he knows how to communiate with customers as well as having all the technical knowledge. He spent around 1.5 hrs checking everything on my system. He offered to reset my system to a setting that was more efficient, but instead of just doing it he explained where my system was currently set and then explained what he could set it at and how it would improve it. I was delighted with this service and look forward to the report

First service on my heat pump. Engineer was very polite and friendly. He explained a few things to me that I was unsure about whilst doing the service.. The pump had gained a lot of algae on the condenser but now the whole machine looks like new. Altogether a very reassuring experience. Full marks.

Phill Bullock did a great job servicing our heat pump today ,always goes the extra distance to make sure everything is running smoothly.

Luke was our engineer, he was very knowledgeable, he was very polite, very thorough and efficient. He sorted everything out for us with minimum fuss.

The service was carried out by Phil, very efficient and professional. 10 out of 10.

I’m afraid the office which schedules the engineers work has been very slow to respond to my requests for servicing.
I paid £314 for a standard service in advance and was kept waiting for 6 weeks whilst my boiler was malfunctioning. I had no alternative but to find another company who promptly sorted the issue. I am still waiting for a refund, having paid in advance at the end of October. Very disappointed with Mitsubishi.

Part 3: Mitsubishi finally managed to speak to its contractor, almost 3 weeks after the last visit from an engineer. No explanation for how it take so long and only a grudging apology. A date for the repair was offered and agreed and they sent me an invoice, which has to be paid beforehand, otherwise the engineer won't come. I clicked the link to the payment site, put in my card details in the usual way and clicked on 'pay'. A message came up immediately saying that the payment process had been cancelled and that I should try again if I hadn't initiated the cancellation - which of course I hadn't. I tried twice more and received the same message each time.
I then phoned the company and explained what had happened. An uninterested man told me that my bank was almost certainly responsible. I told him that my bank didn't operate like that and I doubted what he said but he repeated it and then said I'd be sent the company's bank details so that I could make payment by BACS transfer. I did this and the payment went through.
I then noticed that the balance on my bank account was rather lower than the previous day and checked payments, to find that all three payments apparently rejected by Mitsubishi had gone through, so that (with the BACS payment) I had paid four times for the belated repair, a total of over £1000. I rang the company again. Again no apology, and a claim that the payments probably hadn't gone through fully and would be stopped. Unsurprisingly, the claim has turned out to be false.
Meanwhile it's over a week since I complained to the company's Customer Service Team and I've heard nothing - perhaps the team exists in name only. I'd gladly nominate Mitsubishi a 'Worst Service Provider of the Year' award.

Phil Bullock is a fabulous engineer who really knows his stuff and delivers great customer service. ASHP tech is still new (for us anyway) and to find a chap who identifies and rectifies problems quickly and without fuss is an absolute godsend. We even look forward to his annual visits! Thanks Phil :-)

Last year I wrote a review of my Mitsubishi heat pump which was in my new build bungalow saying how bad it was, costly to run and very poor for heating your home.

At the time I managed to get Mitsubishi to send an engineer to look at the system, they examined it and said that 90% of the problem was the fact that the pipework was of the wrong diameter and it needed upgrading from 22 mm to 28mm.

I managed to get the builder of the property to do this and now we are into another winter not much has changed even with this upgrade.

When the outside temperature falls below zero this thing fails to perform, it uses lots of electricity and the temperatures you set the thermostats to cannot be achieved.

If the outside temperature is in the pluses it does work and the house is warm, you still use lots of electricity which a lot of people can’t afford to spend.

These things are supposed to be the future with the government giving grants to install them,
telling you to get rid of your gas boilers and save money and to go Green.

Well you won’t save money and in the bad winters you won’t stay warm, if I had a choice and gas was available this thing would be gone and a new gas boiler would be in its place!!

All the hype for these things is wrong and we are all being lied to.

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We had our Ecodan air-source-heatpump (ASHP) installed in June 2023 (>2.5years ago).
In late 2024 after a service highlighted a low water flow-rate, plus several installer visits & 2 visits from Mitsubishi concluded the problem was a flow-sensor misreading rather the actual low flow problem!
Fast forward to today (> a year)
and we get a great problem solver in the shape of local Mitsubishi Engineer Luke!
He replaced faulty parts but that did not solve the problem, so he flushed thru the pipework in our heat pump. This also did not improve the flow rate but dirty water was produced. Rather than give up a different flushing solution was tried and this suddenly produced a jump in flow rate!
This appears to have solved the problem. Our 2 circuit pumps could be turned down from maximum which immediately reduces noise & vibration from our pumps & radiators. Our rads are now hotter and all because of Engineer Luke, so ‘well done Luke & thank you’
To summarise our Installer & Mitsubishi customer service has been both slow & inadequate with poor concern for their customers. We are in our mid 80s and the stress and discomfort has been considerable. We hope our Ecodan ASHP will now achieve what we need, a warm house & a SCOP as specified over 2.5 years ago!

Phil was very knowledgeable and helpful, arriving on time -albeit after needing a little help to get the van out of the mud :)). Took his time to explain what he was doing and how to set up the system for the most efficiency.

We had an Ecodan heat pump installed and commissioned by a Mitsubishi approved installer on the 24 October 2025. The unit failed after 26 days with a manufacturing fault: it was unable to defrost in low temperatures. Mitsubishi advised our installer to replace several components and this work was carried out under warranty. The next day the pump failed with the same problem and we were once again without heating and hot water. Our installer advised that it was not repairable and the unit would need to be replaced.

We waited for a response from Mitsubishi who wanted to do a site visit. It took almost a month for an engineer to visit. By this time we were in late December and really concerned that we still had a faulty heat pump and freezing temperatures were inevitable. Frustratingly, the engineer arrived with no prior knowledge of the problem nor any of those data our installer had submitted to Mitsubishi. Consequently, he advised replacing a sensor that, unbeknownst to him, had already been replaced. We have no grievances with the engineer who was very professional, but was let down by his company.

Inevitably, the heat pump failed completely on Boxing Day, unable to produce heating or hot water. The temperatures dropped to -6C and were never above 3C for the whole of the Christmas and New Year period. We have no other heat source and were without a working heat pump for 3 weeks before the engineer returned to replace the component which wasn’t at fault. After we put him in touch with our installer and he learned what work had been carried out, he concluded that a replacement pump was necessary. This was finally replaced almost 8 weeks after first failing with a manufacturing fault.

I have written to the Head of Customer Grievances detailing my complaints about how Mitsubishi dealt with our situation and have asked to be reimbursed for the not inconsiderable expenses incurred due to their corporate incompetence. We have just received our monthly electricity bill of almost £450: the most expensive we have ever had and due to trying to keep warm using electric heaters. After two weeks I haven’t even had an acknowledgment of my email. I strongly believe we have a legitimate cause for complaint but are being ignored by Mitsubishi. We dread another breakdown as Mitsubishi are so frustrating to deal with. They do not seem to care about their customers. I would never recommend this company as a supplier of your heat pump.

I have already written a review on experience with Mitsubishi and still not happy with the service, I have had numerous visits last one was 16 Jan 26 the system worked fine for 9/10 years now it is costing me nearly £400 for this month in electric and that is just at 18 degrees the house doesn’t get warm I am freezing all the time nothing has changed but they are now saying there is no underfloor insulation some of the radiators are the wrong size for rooms why now after all the years of it working efficiently are they using the above for the rising cost of usage I have asked for someone to contact me to talk it through since engineer’s visit but no one has got back to me can someone please advise if they are having the same problems.

Phil arrived today and within minutes was able to find the problem with the system. He explained his findings with us and ensured we understood how the problem would be resolved. He left us after giving his telephone number in case of emergencies. Very grateful for his visit.

I have Mitsubishi Ecodan heat pump system. I pay over £400 per year for a top service plan. In September 2025 I had an annual service at which point a fault was discovered in the Heatmiser monitor. This was reported for replacement and I would hear from Ecodan office in Manchester to schedule an appointment. I heard nothing. I called Manchester office to remind them. Somebody would be in touch to schedule the visit.
I so far made 10 calls. 8 to Manchester and 2 to Mitsubishi UK headquarters in Hatfield.
Each time I was told that someone would contact me to arrange a visit and each time I have heard NOTHING. On one frustrating phone call in December I was virtually told that they were very busy and I would have be patient.(Since September??)
This has now gone on for 4 months without resolution - an appalling indictment on the customer service of an international organisation.
As of writing I still have not heard any thing despite the promises from Mitsubishi!
Do I qualify for a refund on my Top Service contribution?