Dometic airconditioners servicing

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Roy Howland

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Question.Does anybody know of Air-conditioning Engineers who are capable and willing to look at and get my Dometic 2200 airconditioner working.The unit is blowing and heating OK but not cooling.I assumed like earlier car AC,s it was a matter of recharging.However I now understand they are sealed units and that after 6 -7 years they should be replaced!.At £2,500 not too pleased at that thought,and does not seem very environmentally friendly .Ideally if there is anybody the Cheshire area would be good but I am beginning to realise I may have to travel.Strangly every Dometic installer I have contacted does not offer a servicing facility.The unit is 7 years old and hardly been used.
Any tips any body.
 
Roy Howland said:
Question.Does anybody know of Air-conditioning Engineers who are capable and willing to look at and get my Dometic 2200 airconditioner working.The unit is blowing and heating OK but not cooling.I assumed like earlier car AC,s it was a matter of recharging.However I now understand they are sealed units and that after 6 -7 years they should be replaced!.At £2,500 not too pleased at that thought,and does not seem very environmentally friendly .Ideally if there is anybody the Cheshire area would be good but I am beginning to realise I may have to travel.Strangly every Dometic installer I have contacted does not offer a servicing facility.The unit is 7 years old and hardly been used.
Any tips any body.
Click to expand...

Does it heat by reversing the system or is it just a heating element in it?

They are sealed, like all air conditioners but they can all be regassed even if there is no gauge access point one can be fitted for a few quid. Whoever said they only last 6 years doesn't know what they're talking about. Car/van cab A/C sometimes needs regassing because the compressor drive shaft is driven from the engine and the seals round it can wear and leak, also stones and salt can attack the condenser. But the one on your roof has none of those problems and should last years.
 
Roy Howland said:
Question.Does anybody know of Air-conditioning Engineers who are capable and willing to look at and get my Dometic 2200 airconditioner working.The unit is blowing and heating OK but not cooling.I assumed like earlier car AC,s it was a matter of recharging.However I now understand they are sealed units and that after 6 -7 years they should be replaced!.At £2,500 not too pleased at that thought,and does not seem very environmentally friendly .Ideally if there is anybody the Cheshire area would be good but I am beginning to realise I may have to travel.Strangly every Dometic installer I have contacted does not offer a servicing facility.The unit is 7 years old and hardly been used.
Any tips any body.
Click to expand...
Hi, these units are hermetically sealed for life.

As such, they don’t usually need re-gassing or as I like to state, re-charging. As this is the case, they don’t usually come with an access point or charging stub. That said, we can always braze one on.

If you say it’s not that old. I doubt it’s a compressor issue. As the compressors are pretty much bulletproof .self, lubricating and as they are sealed, not usually an issue .

Where are you based in the vast county of Cheshire? .

Send me a PM if you need more advice or assistance?
 
EuroTrotters said:
Hi, these units are hermetically sealed for life.

As such, they don’t usually need re-gassing or as I like to state, re-charging. As this is the case, they don’t usually come with an access point or charging stub. That said, we can always braze one on.

If you say it’s not that old. I doubt it’s a compressor issue. As the compressors are pretty much bulletproof .self, lubricating and as they are sealed, not usually an issue .

Where are you based in the vast county of Cheshire? .

Send me a PM if you need more advice or assistance?
Click to expand...
Hi, I have the same B2200 which doesn't produce any cold air. The Compressor runs as do all the fans and I can't find any evidence of oil/a leak in the system. High pressure side doesn't get hot either. I am in Burnley and happy to travel. (I tried to find DM but can't locate it)
 
I’m interested in this thread too as I have a Dometic air con on the roof and currently here in Spain (38degC) it’s blowing warm air.
I’m in a west Yorks so not too far from Burnley & Cheshire depending on where in Cheshire.
 
JuSu66 said:
Hi, I have the same B2200 which doesn't produce any cold air. The Compressor runs as do all the fans and I can't find any evidence of oil/a leak in the system. High pressure side doesn't get hot either. I am in Burnley and happy to travel. (I tried to find DM but can't locate it)
Click to expand...
Hi


Maybe you can't send me a DM because you are not a subscriber ?
 
Roy Howland Have a look on the label, it's usually on exterior lhs, and / or inside cover.
It'll tell you what coolant gas is used, if it's a B2200, it'll probably be C407R which is now prohibited from use and I understand gases currently permitted are not suitable for use in this unit ☹️
 
Figaro said:
Roy Howland Have a look on the label, it's usually on exterior lhs, and / or inside cover.
It'll tell you what coolant gas is used, if it's a B2200, it'll probably be C407R which is now prohibited from use and I understand gases currently permitted are not suitable for use in this unit ☹️
Click to expand...
R407c you mean? 😊
 
JuSu66 said:
BOC are still selling R407c as suitable for new equipment?

R407C Refrigerant Cylinder | Industrial Gas | Gas Equipment & Accessories | BOC Shop

R407C is a HFC blend suitable for residential & light air conditioning and direct expansion air conditioning systems.
www.boconline.co.uk
Click to expand...
BOC won't sell it to you unless you have an account. That and F-Gas

That and they are the most expensive in the business.

We used to use them for OFN and Oxygen, but the costs are eye watering. They charge you to collect the gas if you don't get it delivered which is also a rocking fortune. Then they charge you for the gases, fair enough. But their monthly bottle rentals are crazy.

We now use an alternative company that charge a one off bottle fee, plus the gas. No rental charges, keep as long as you like. take the empty back and simply pay for the gas.

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EuroTrotters said:
BOC won't sell it to you unless you have an account. That and F-Gas

That and they are the most expensive in the business.

We used to use them for OFN and Oxygen, but the costs are eye watering. They charge you to collect the gas if you don't get it delivered which is also a rocking fortune. Then they charge you for the gases, fair enough. But their monthly bottle rentals are crazy.

We now use an alternative company that charge a one off bottle fee, plus the gas. No rental charges, keep as long as you like. take the empty back and simply pay for the gas.
Click to expand...
you missed the bit where they actually charge you for the invoice to do the above
 
EuroTrotters said:
BOC won't sell it to you unless you have an account. That and F-Gas

That and they are the most expensive in the business.

We used to use them for OFN and Oxygen, but the costs are eye watering. They charge you to collect the gas if you don't get it delivered which is also a rocking fortune. Then they charge you for the gases, fair enough. But their monthly bottle rentals are crazy.

We now use an alternative company that charge a one off bottle fee, plus the gas. No rental charges, keep as long as you like. take the empty back and simply pay for the gas.
Click to expand...
My point was that the original poster said that R407c was now prohibited and could lead to someone making decisions based on this fact alone.
 
Loads of R407c gas on eBay and self refill kits. I’ve seen a video on YouTube showing you how to add taps to the system so it can be regassed.
 
Realist said:
Loads of R407c gas on eBay and self refill kits. I’ve seen a video on YouTube showing you how to add taps to the system so it can be regassed.
Click to expand...
Taps or LTV’s (line tap valves) are prone to leaking too. We don’t use them other than for gauge analytics.

Fine for DIY. But messing with refrigerant and getting it wrong, you could get your fingers burnt.
 

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EuroTrotters said:
Taps or LTV’s (line tap valves) are prone to leaking too. We don’t use them other than for gauge analytics.

Fine for DIY. But messing with refrigerant and getting it wrong, you could get your fingers burnt.
Click to expand...
Yes correct but all in saying is they can be gassed back up if needs be and I’ll not be touching it that’s for sure.

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EuroTrotters said:
Hi, these units are hermetically sealed for life.

As such, they don’t usually need re-gassing or as I like to state, re-charging. As this is the case, they don’t usually come with an access point or charging stub. That said, we can always braze one on.

If you say it’s not that old. I doubt it’s a compressor issue. As the compressors are pretty much bulletproof .self, lubricating and as they are sealed, not usually an issue .

Where are you based in the vast county of Cheshire? .

Send me a PM if you need more advice or assistance?
Click to expand...
Hi Eurotrotters
Not picked up on the thread for awhile and noted your reply.Are you an Air-conditioning Engineer?Desperate to find anybody who can get it working.We are based in Nantwich, obviously happy to travel,because that's what we do.
 
Well today was the day of truth for the Air Con unit on my motorhome which has not worked since I purchased it over 2 years ago as I had arranged a visit to the Air Con Doctor aka Eurotrotters.

Well, Eurotrotters came up trumps, was a splendid host and a very friendly guy. So my B2200 is now working like a dream and producing cold air like it should, at a fraction of what a replacement unit would have cost. Deeply indebted to you Eurotrotters!! Cannot recommend strong enough.
 
As these systems are hermetically sealed, firstly an access point had to be brazed on. Then it was leak tested for an hour and no leak was found. So it was then evac'ed, recharged with 430g of R407c refrigerant and lo and behold it worked perfectly.

All in all a perfect job!

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JuSu66 said:
As these systems are hermetically sealed, firstly an access point had to be brazed on. Then it was leak tested for an hour and no leak was found. So it was then evac'ed, recharged with 430g of R407c refrigerant and lo and behold it worked perfectly.

All in all a perfect job!
Click to expand...
Had exactly the same service from a local Dometic agent, they got our old a/c unit fixed and re gassed, it hadn’t worked for five or six years that we know of. We were very pleased but I suspect ours and many others fail due to lack of use which in cars I know isn’t good.
 
All the so called Dometic service centres that I called didn't want anything to do with an old unit other than to fit a new one! Very disappointed with Dometic after service!

The B2200 system is a fully sealed system and supposedly shouldn't need to need run to retain pressure. However, the compressor in your vehicle has a driven shaft and as such requires running at intervals so that the seal remains current by the circulating oil in the system.
 
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JuSu66 said:
All the so called Dometic service centres that I called didn't want anything to do with an old unit other than to fit a new one! Very disappointed with Dometic after service!

The B2200 system is a fully sealed system and supposedly shouldn't need to need run to retain pressure. However, the compressor in your vehicle has a driven shaft and as such requires running at intervals so that the seal remains current by the circulating oil in the system.
Click to expand...
The dometic system doesn’t have that type of compressor - it is effectively a sealed steel shell with the compressor suspended on springs within it. Yes - the cab AC should’ve used all year, but hab AC shouldn’t matter. If it’s lost it refrigerant, and it appears it did, then there is a leak source albeit a very small one. It will very likely happen again in time.

Do they have flexible hoses or was it all copper?
 
almichie said:
The dometic system doesn’t have that type of compressor - it is effectively a sealed steel shell with the compressor suspended on springs within it. Yes - the cab AC should’ve used all year, but hab AC shouldn’t matter. If it’s lost it refrigerant, and it appears it did, then there is a leak source albeit a very small one. It will very likely happen again in time.

Do they have flexible hoses or was it all copper?
Click to expand...
They are all copper, but when pressurised with OFN (oxygen free nitrogen). No leak could be found. Held high pressure. No other option other than to evacuate and recharge the system.
 
Hi, I know it’s been a couple of years since this thread was active but I was hoping to get some advice…

I’ve got a Dometic B1600 Plus that as far as I can tell is barely cooling (I’m unsure how effective they are supposed to be but had I had the unit fitted myself I’d be requesting a refund, it’s that disappointing).

The compressor cycles on and off and everything seems functional other than the one thing that matters! It has probably been like this for years - the van is new to me but the aircon is a 2011 model I believe.

Does this sound like another case of the refrigerant needing adding? Is there anything I can do to make sure that is the issue? I see EuroTrotters sorted someone out a couple of years ago - are you still around and doing this kind of thing? If not, can anyone recommend anyone?

I’m near Cambridge but obviously happy to travel to get it sorted.

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