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As above had loads of issues with water getting into the motor unit and electronics on my Thermo 3 proffessional on its 4th rebuild in 5 years from Ehiem for free but thats not the point its poor design/testing from a brand you expect more of given the premium price tag. I asked for a...

Thought I would up date and perhaps save fellow hobbists on here some potential grief. I would advise all considering buying a P3 to avoid them, its intresting Ehiem stockists no longer have them and have been replaced with the P4 with even more electronic "crap" to go wrong (since when has...

Best advice I can give you is sell it, mines been nothing short of being a misery to own over the last 4 years despite replacing the seal sets every 12 months it has leaked, the thermostat has failed 3 times and despite John Allen repairing it (for free) and sealing the electronics they are at a...

Might help if you provide details of the model;)

Up date time, John Allen have come through for a 3rd time and repaired the head and replaced completley the 3 pipe connector with a new unit. The pump is up and running at last and I will monitor so far I think I've lost a lot of my shrimp which is a shame. I cant fault John Allens customer...

Spoken to John Allen nice guy. By coincidence they were dealing with another customer same filter, same issue 3 repairs 3 fails. At present they are at a loss to eplain why the filter head keep failing but have again offered to take a look at it for me which is brilliant customer service, but...

I would think twice regarding Thermo Ehiems see http://www.ukaps.org/forum/threads/ehiem-proffessional-3-thermo-filter.36775/ just not reliable given the cost.

Think I've resigned to having an external heater/stat back in tank as only Ehiem have this but I'm not prepared to chuck another £500 at one! That will buy me a lot of plants! The Fluvial FX6 at £189 seems to have a good spec and their head office is only 5 miles away from me but it would be...

Hi all I'd just thought I'd update you all. This filter has failed now three times in 2 years. Twice before; the thermostat had failed and Ehiem/John Allen kindly repaired, well sadly today its failed again:sour: and took the house electrics out with it(sorted now). The filter head was full of...

About 3cm.

I use a 100cm bay across the back wall of the tank (120cm) linked to Ehiem professional 3 which gives a nice even flow and distribution. This is supplemented with a in tank circulation pump which the CO2 stream enters to be "mixed" and pushed to the bottom layers of the tank, while at the...

I've had similar issues with my Pro 3 Thermo in terms of leaks from the head and soaking of the dinning room floor, non priming and have had the electronic thermostat fail twice in the last 5 or so years. I now simply fill the filter full of water which see's it start 100% and carry a spare...

hi all Just thought I'd update you all, spoke to Ehiem and John Allen really helpful they have kindly repaired the head, replaced the electronic stat, all the seals in the head and taps. What can you say other than thank you John Allen and Ehiem. Quality customer care in an age of throw it...

Thanks all I'm awaiting a call from John Allen after contacting Ehiem so we will see how I get on I'll keep you posted. Thanks for the offer Alastair appreciated its a 2180.

Hi all Any body had any issues with these filters? I'm starting to think they have an inherent design problem. I've had mine for 5 years and its being a pain, which is disappointing given the cost and reputation of Ehiem. I bought it to keep the inside of the tank free of clutter. During this...