appliances left idle for 2 weeks likely to explode.

[keithwilliams]

i just fixed a customers candy dishwasher and was finishing off my cuppa while flicking through it’s instruction book.
on the first page was a warning about hydrogen gas build up and the likelyhood of an explosion.
according to candy, they say that an unused hot water supply is capable of a dangerous build up of hydrogen gas even after only two weeks. It advises that all hot “faucets” be run for several minutes before starting your appliance. It further warns the customer not to smoke while doing this, to avoid igniting the gas.
Has anyone ever heard of this actually happening?

[kwatt]

Nope, new one on me. 😕

Mind you, we’ve had one or two connected to a gas supply by mistake. 😆

K.

[clivejameson]

Re: appliances left idle for 2 weeks likely to explode.

Something tells me their lawyers are paranoid 😆

Hydrogen gas will build up in heating systems due to corrosion…if ever you have a radiator that regularly needs bleeding and there are no leaks then hydrogen due to corrosion is probably to blame (takes months/years to get to that stage)

The test…and quite good fun it is…is to hold a match to the gas you bleed out 😯 …it doesn’t actually go bang, instead it makes a high pitch scream as it ignites…mind you i can think of a lot of things that would make a high pitch scream when ignited 😆

[kwatt]

Is that sorta like lighting escaping body gas? 😆

K.

[clivejameson]

Re: appliances left idle for 2 weeks likely to explode.

As if i’d know that…really! 😉 😆

[smartin]

Re: appliances left idle for 2 weeks likely to explode.

as most radiators are under windows best make sure all curtains and nets are out of the way if carrying out this test lol 😆 and make sure your house insurance is up to date

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