My Bosch instant hot water system occasionally ignites for a second, then goes out and won't reignite just after the gas bottle has been swapped. It has done it before and it took 2 days to fix itself. I think there is air in the system somewhere. Is there somewhere I can bleed the unit?
SOURCE: I have hot air but no hot water in my dishwasher
Check to make sure your supply lines aren't crossed and that your hot water supply is connected to the dishwasher
SOURCE: Bosch gas hot water system won't turn on
i have a bosch 16h hydroflow hot water system that will not ignite.
SOURCE: Water is coming out of air flow gap. I installed a
The leak in an air gap is usually caused by a clogged sink discharge line. Most of the time this is connected to the garbage disposal and there is food particulate in the drain hole where the dishwasher drain from the air gap to the garbage disposal connects.
Pull the sink connection hose off and clean the hole thoroughly. You can try testing the dishwasher/ air gap by placing the disconnected hose into a bucket during the pump out period. It should not leak. After this test...reconnect the hose to the sink connection.
If it is NOT connected to the garbage disposal then remove the hose and clean out the hole where the connection is made. This is a common problem and easily resolved by the user.
Thanks for using FixYa.
Kelly .
SOURCE: Problems with bosch 1600h ng tankless wh igniting
I found that the solution to my issue of not igniting was due to a bad pilot electrovalve part #8708501249. It was about a $50 part that was bad from the start.
Really disappointing that Bosch's QA would let a such a defective part ship. I spent about 3 years of using a workaround with a fan blowing air to get ignition until it finally failed. I had a tech look over the system to point me in the right direction.
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