Posted by: @editorAs part of your services, did they check the refrigerant levels?
I don't think that checking refrigerant levels is common practice for annual servicing but given how important it is to the heat pump, I wonder why it's not checked.
it’s very difficult to measure the charge, it is weighed in when filled at the factory. And there aren’t anywhere near enough f gas qualified technicians. That’s why everyone fits monoblocs.
Off grid on the isle of purbeck
2.4kW solar, 15kWh Seplos Mason, Outback power systems 3kW inverter/charger, solid fuel heating with air/air for shoulder months, 10 acres of heathland/woods.
My wife’s house: 1946 3 bed end of terrace in Somerset, ASHP with rads + UFH, triple glazed, retrofit IWI in troublesome rooms, small rear extension.
Posted by: @hughfPosted by: @editorAs part of your services, did they check the refrigerant levels?
I don't think that checking refrigerant levels is common practice for annual servicing but given how important it is to the heat pump, I wonder why it's not checked.
it’s very difficult to measure the charge, it is weighed in when filled at the factory. And there aren’t anywhere near enough f gas qualified technicians. That’s why everyone fits monoblocs.
I remember watching an American video some time ago, where the Technician measured either temperatures, pressures or both on the heat pump unit, that indicated if there was sufficient refrigerant gas in the system.
Well, these days practically any garage can fill air conditioners in cars. Therefore drain, measure and fill gas in them.
It's surely not that complicated.
Posted by: @derek-mPosted by: @hughfPosted by: @editorAs part of your services, did they check the refrigerant levels?
I don't think that checking refrigerant levels is common practice for annual servicing but given how important it is to the heat pump, I wonder why it's not checked.
it’s very difficult to measure the charge, it is weighed in when filled at the factory. And there aren’t anywhere near enough f gas qualified technicians. That’s why everyone fits monoblocs.
I remember watching an American video some time ago, where the Technician measured either temperatures, pressures or both on the heat pump unit, that indicated if there was sufficient refrigerant gas in the system.
Yea, you can do it by measuring the temps and pressures at certain points of the system. Then you calculate what the correct values would be for the factory gas charge. Or at least I think that’s what you do.
Off grid on the isle of purbeck
2.4kW solar, 15kWh Seplos Mason, Outback power systems 3kW inverter/charger, solid fuel heating with air/air for shoulder months, 10 acres of heathland/woods.
My wife’s house: 1946 3 bed end of terrace in Somerset, ASHP with rads + UFH, triple glazed, retrofit IWI in troublesome rooms, small rear extension.
Hi,
Im looking to have my ASHP serviced and looking around for prices. Ive been quoted £250 (plus vat) for a service. Does that sound about average?
Also, how long are Mitsubishi ASHP parts warranty for? 5 years?
Thanks
@tufty, have a look above in this thread. Your price is about average for a one-off visit. Warranties on heat pumps aren’t clear - other Ecodan owners may have insights.
Pre-order: The Ultimate Guide to Heat Pumps
Subscribe and follow our Homeowners’ Q&A heat pump podcast
My standard Ecodan warranty was 3 years from commissioning date and installer suggested I buy extended warranty (which I did) to cover 7 years
@hughf refrigerant charge quantity is critical. The best place to charge the unit is in the factory when built, where equipment is calibrated and controlled and very thorough leak detection can be carried out prior to charging. Monoblocs have a very small refrigerant quantity requirement and, because they are outside, flammable refrigerants such as R290 propane can be used rather than R32. Many ASHP service engineers who have transitioned from the Gas Safe fired boiler side of the heating industry won't be F-Gas registered, so cannot touch a monobloc refrigeration circuit. Every time a refrigerant manifold is connected to the HP and LP sides, and then disconnected, there's a slight refrigerant vapour loss.
@allyfish your point being?
Off grid on the isle of purbeck
2.4kW solar, 15kWh Seplos Mason, Outback power systems 3kW inverter/charger, solid fuel heating with air/air for shoulder months, 10 acres of heathland/woods.
My wife’s house: 1946 3 bed end of terrace in Somerset, ASHP with rads + UFH, triple glazed, retrofit IWI in troublesome rooms, small rear extension.
Posted by: @kundkWell, these days practically any garage can fill air conditioners in cars. Therefore drain, measure and fill gas in them.
It's surely not that complicated.
Completely different set of regulations covering the automotive application of F-gas…. So different that you don’t need to be f-gas registered to work on automotive AC systems.
Off grid on the isle of purbeck
2.4kW solar, 15kWh Seplos Mason, Outback power systems 3kW inverter/charger, solid fuel heating with air/air for shoulder months, 10 acres of heathland/woods.
My wife’s house: 1946 3 bed end of terrace in Somerset, ASHP with rads + UFH, triple glazed, retrofit IWI in troublesome rooms, small rear extension.
Posted by: @tuftyHi,
Im looking to have my ASHP serviced and looking around for prices. Ive been quoted £250 (plus vat) for a service. Does that sound about average?
Also, how long are Mitsubishi ASHP parts warranty for? 5 years?
Thanks
Mine is 5 years if serviced every year.
@mjr I dont suppose you know if there is an online record anywhere of the service history? My (now ex!) partner was responsible for getting the ASHP serviced (while I focused on everything else involving a full property renovation).
I cant find a 'commissioning document', but I do have a Handover document, although no mention of service history.
I guess - if I cant find a record of annual services performed - it will void my Mitsubishi warrantee. Will it also impact on my RHI payments? Im really concerned now.
- 26 Forums
- 2,118 Topics
- 46.6 K Posts
- 46 Online
- 4,523 Members
Latest Posts
-
The sad end of my ECO4 installation.
This afternoon I was advised by a charity that was help...
By Dwynwen , 59 minutes ago
-
RE: Why do we need pressurised systems?
@iaack I enquired of Wattson and the reply was very muc...
By Toodles , 1 hour ago
-
@jamespa that is quite important. It would be good if t...
By Grantmethestrength , 2 hours ago
-
RE: Replacing Refrigerant on Mitsubishi Heat Pump
@davidalgarve It should just be recovered by both servi...
By dgclimatecontrol , 5 hours ago
-
RE: Who's your electricity provider and what's your tariff?
Aggregators have been recognised for many years, and it...
By Transparent , 5 hours ago
-
RE: Help me keep the faith with my air source heat pump installation
Great news I edited my previous post (probably af...
By JamesPa , 8 hours ago
-
RE: Double or Triple Glazed Windows?
@toodles Glad to hear things are progressing well for y...
By TRBob , 9 hours ago
-
RE: 300 Liter Tank - Do I have to heat it all?
I agree with @morgan. You can turn down the target t...
By JamesPa , 11 hours ago
-
How to waste energy (and time) playing with AI.
A friend of mine who subscribes to an AI service was ex...
By Toodles , 1 day ago
-
RE: Heat Pump Books For Beginners – Bodge Buster & From Zero To Heat Pump Hero
@topher you’re more than welcome to, yes. I’ll send you...
By Mars , 2 days ago
-
RE: Fitting new shower valve ..........
I’ve never taken a chance when fiddling and changing ou...
By Mars , 2 days ago
-
You should contact the council and report the unsatisfa...
By JamesPa , 2 days ago
-
RE: Benefits of an extra horizontal loop for GSHP
I would deffo install an additional slinky run, especia...
By Transparent , 2 days ago
-
RE: Say hello and introduce yourself
@editor fab - thanks Mars, and keep up the great work o...
By normpang , 2 days ago
-
RE: Compressor and Evaporator Stratification
@trebor12345 So I think the 1st zigzag section shows so...
By ASHP-BOBBA , 3 days ago
-
RE: Is this just haze or something more?
@majordennisbloodnok I was giving a talk to primary sch...
By Toodles , 3 days ago
-
RE: Tesla Powerwall – More of a ‘Luxury’ Than an ROI Winner!
We had our Tesla Powerwall 3 (and Gateway) installed ea...
By Old_Scientist , 3 days ago
-
Indeed. With a battery its presumably the battery con...
By JamesPa , 3 days ago
-
RE: No-code, plug-and-play monitoring for your heat pump
To update an ESP device using ESPHome in Home Assistant...
By Grantmethestrength , 4 days ago