Glowworm Ultracom 24 cxi Condensing Combi Boiler

Boiler faulty yet again, I called the glow worm service and I get a message saying that they are taking no more boiler break downs on, it’s only three years old, it’s a pile os poop.

it is 3 years old and hardly saw use... it is leaking water and has been usable for 2 weeks. Avoid this brand at all costs.

Had it two years and have had 3 breakdowns, valliant call out was rubish always trying to blame old radiators, filter, water quality. They come out take a water sample then leave, still with a broken boiler.

Worth spending money on a more reliable alternative.

Do not buy.

Don't buy glow worm rubbish. And very poor customer service even worse breakdown cover insurance policy not worth the paper it's written on if looking for a new boiler just avoid glow worm

My 6 year old Glowworm 24cxi suffers regular error codes and requires resetting at least twice a week. Inlet valve needs to be disassembled after each use in order to reset. Distressingly, inner flue has burnt through. Now requires £350 of spares to achieve safe operation, excluding labour. There is little to love about this boiler, other than the fact I will soon be able to replace it.

I am a heating engineer. They are so unreliable and have ridiculous parts prices. Bags of poorly designed poor quality rubbish. You have been warned. Just been to a fit a pump to glow worm ultracom, normal cost for pump £100 ish with 20 minute change time. This one £150 for pump and two half hours because isolation valves are cheap and stuck so had to do a full drain down . Absolute garbage.

I had my boiler 4 years ago and in all honesty had no trouble with it it was fitted as part of a complete new system which i fitted myself and had a plumber to install the gas as a newbie i took some advise from the plumber who did the gas as to rad size and pipe work runs he recommended this boiler to me and said he rarely fits any other boiler apart from w b the most impressive think i like about this boiler is how flexible the controls are the fact it can be range rated and the fact that its a fully modulating boiler so that its always running at its least expensive setting to keep you warm

Bottom line i would recomend this boiler to anyone its like anything you can buy a new car and out of thousands that are made you are bound to get problems with some of them no matter who makes them some faults could be down to instalation and some just genuine faults with the boiler.

Should have known better, a sensible price at £650 but they get it back on the parts.

2 years and 1 month old the heat exchanger went at a cost of around £270 fitted, another 10 months on and it has decided to spring a leak around the pump but as you can't buy the rubber seal on its own I will have to buy the whole pump assembly for £150ish + fitting. I wonder what is going to fail next

I wish I had read some of the reviews on the web before I purchased it and I would have paid another couple of hundred quid and got a decent make instead of this pile of junk

I need to fit three boilers in three different flats over a six month time period. One was a glowworm the others were worcesters. The glow worm has been an absolute nightmare and although only a few years old now I am seriously considering ripping it out and replacing it with a worcester. From a short time after it was installed it hs had constant faults, internal leaks, low pressure, faulty sensors, switches. Every 3 months something new turns up with it. The faults are often so obscure and require specialist parts that I am advised by plumbers to call one of their engineers. Their engineers are horrifically expensive to call out compare to normal plumbers. I calculated once that it would be cheaper hiring private cardiologist than the hundreds of pounds this company charges for a call out. Often it also takes days for them to arrive too. I would strongly advise unless you have the income of a Russian oligarch to stay away from these boilers like the plague. Various plumbers have said to me that glowworm boilers are dreadful so I don't think I have been unlucky.

Lasted less then two years.Pump is failing(started running noisy) and I know it will be more to come. The plumber who fitted (now is not answering his phone) said it's the best boiler you can get for £600-700,-

Now, after reading trough various treads I can also confirm that this model is RUBBISH.

P.S. New pump is on it's way.Costed £160.- Removal and installation is easy so will save on labour by doing it my self(i'm mechanical engineer).Still the quality of this componnent is crappy.