RossG21

@joe90 yes we do thank goodness. All that is ok so at least we have hot water. Yeah today wasn’t ideal trying to sort the leak with the heavy rain etc. I’m quite willing to disconnect the unit and have a bash myself once I’ve taken the casing off etc exposing it properly. Thanks for the video link. @ProDave yeah he reckons the aluminum fins vibrate on the copper and wear over time. ??‍♂️ It certainly looked to be coming out of there, but like I say conditions weren’t ideal. I will definitely get a picture for you once I remove the unit, which I think will be after Christmas now. Yeah good idea, I’ve seen him strip down etc and quite happy to have a go etc, so I might just give your theory a test. He did say if it’s a case of re-gassing he’s more than happy to come and sort.

He doesn’t think he can....The unit was in an awkward spot and you know when you get the feeling if you had more time and it wasn’t raining there’d be a better chance of fixing it. Quite tempted to have a go myself after seeing the cost of a new one ?

Yeah the chap that came out I only emailed him last night and he came at 10am this morning. He really tried to get it going and was gutted he couldn’t. All I know make and model wise is it’s a Kingspan aeromax plus.....I’m not sure on the kw size, I think either 4 or 6kw but just a guess. I’ve been in touch with Carrier Uk regarding spares and they have asked me for the model. So I guess once o find out if spares are available I can Ineed decide what to do really/whether to try and repair or go new. The chap who came out said he always recommends the Mitsubishi Ecodan range.

Hi, So just to give you an update. I’ve had a A/C engineer out this morning to look at it. He found there was absolutely no refrigerant gas in the unit. On further inspection he found the leak at the back of the unit on the heat exchange coil where the copper meets the aluminum. After trying to repair it by brazing it, it’s still leaking..... So unfortunately still no heating, but it’s not for lack of trying. So potentially now looking at another unit....

Yes true, a case of investigating why for the engineer.... Thanks a lot

Yes I think this is what I will do, with the information/comparisons that you guys have given me at least I’m giving him/her something to go off. I will see what I can, given the timing etc isn’t great. I’ll keep you guys posted as to what happens. Any more information in the mean time is gladly welcomed.... Thanks guys

Very interesting.....yes trying to piece it all together step by step and it seems to becoming clearer. Is there any way of checking for the gas pressure? Or you would you advise trying to get hold of an engineer with the findings? Seems to make sense then especially if @joe90 is only slightly warm. Mine is very very hot. If this is to become too hot, I’m guessing the thermal cut off will engage and shut everything down? Thanks for all the comments, very much appreciated

This is currently the state of play out side.... IMG_7265.MOV

Currently the fan is running and the circulating pump inside is running....no error codes as of yet. I’ve got a heat demand from one of the thermostats, so waiting to see if anything happens. I don’t have a multimeter, I can get hold of one of need be. Yes I’ve done a power down in terms of turned the switch off in the cupboard and the rcd on the mains board... I’m sorry even the simplest of electrical tasks are not my thing, but my friend is an electrician so willing to step in if I need him.

Do you guys know if this is the thermostat for the compressor?

The plastic cover on this part feels extremely hot....?

@ProDave yes the circulating pump was coming on last night and all seemed to be running as normal without the heat, but failing after 25/30 mins and then producing the error code. Now on trying this again with the heat demand, today I have no fan and no circulating pump kicking in....

Thanks guys....so I’ve done what @ProDave has suggested and called for heat. It started this way last night, but now the error code 14 flashes straight away and no fan starting today now. Last night there was a clicking sound upon ASHP starting could this be the compressor? @Gav_P i can have a look at this now, I’m guessing I’m looking for anything obvious.

Hi, thanks yeah this is now unfortunately where I am at. I am happy like you say with the internal set up that it is is all working as it should, but with no heat being produced from the ASHP. If there was a loss of signal from the inverter board I’m guessing it wouldn’t recognise a call for heat? I’m not sure. But its recognising the the call, but then just not producing the heat as it should. Could it be a coincidence that the immersion failed and then some component on the ASHP, or could it be something that the immersion has caused? Thank you for the reply...

Hi guys, I’m Ross. First of all just like to thank everybody for commenting and helping people in previous ASHP threads. I’ve used these over the last few days to try and pin point what is wrong with my system. Unfortunately I now find myself in unfamiliar territory and seeking help from the experts. Please excuse the lack of knowledge I have and I will do my best to answer any questions. I am currently running a Kingspan aeromax plus ASHP with a Kingspan Aerocyl (single coil) cylinder. Last week we lost all the heating and hot water, a friend of mine who is an electrician came to have a look at the cylinder. Quickly he found the immersion heater had gone and so we replaced with a new immersion heater. This has now given us hot water once again. I filled the cylinder, bled the radiators, topped up the pressure on the expansion vessel, got rid of any air locks in the hot water. (I believe this is all that needs to be done) I have checked the two thermostats and when calling for heat, the pump kicks in and the ASHP starts up no problem. After 25/30 mins of running the pump stops and the error code flashes once then off for 2 seconds and flashes 4 times. Am I right in thinking this is error code 14? Ive also taken the front panel off the ASHP to reveal the led and this is flashing the same sequence. I have tried to find a command unit to try and give me more information, but I haven’t found one. So last night I took the 3 way valve off and made sure the valve was operating as it should and I can’t see any blockages etc so I have now re-fitted this. I’m really struggling now as I’m fearing I’m out of my comfort zone if the problem lies in the ASHP. I’ve spoken to a few local companies, but they are only available at the end of January to come and look at it. Obviously Christmas is approaching, so any help or advice is most grateful. Thank you, Ross IMG_7255.MOV IMG_7255.MOV IMG_7213.MOV