Bosch HydroPower Questions & Answers
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My 16H won't get hot, only warm,even when I have the flame on full and the water at minimal flow. It won't get hot hot..Apart from the main knobs and slide and reducing the rate of flow, is there some way of increasing the thermostatic temperature. Had nothing but trouble with this unit from the get go.
Installed a new 13H, gas inlet pressure is perfect at 1.15 but I have zero Burner gas pressure . Commissioning doesnt say anything about this so I assume its a fault with the new appliance. I noticed the gas regulator was a bit sticky but that's fine now. Anyone had this issue and sorted it?
Pilot flame ignites but no main burner when hot tap is turned on
Hi all, Had a brand new Bosch hydropower 16H installed yday to replace my 15yr old exact same unit as it wasn't lighting when hot water tap was turned on...unless I'd turn the tap on first, then go outside and shut the inlet valve to the heater, wait a few seconds, then open back up (sending a burst of pressure through and only then it'd light) now with the brand new one I have the exact same problem and the plumber isn't sure why .. any suggestions on how to increase pressure ?
Just wondering if you got this sorted Frank,and what was the fix?
Can I convert a 16H NG to run lpg. I know bosch don't make a kit, but looking at part #s between the 2 models there's not much difference between them through the model range
Just trying to re ignite my above question, any old school plumbers/gasfitters on here?
I have just installed a new unit good gas Inlet pressure for gas burner pressure resulting in sufficient hot water
Water tuned on . Ignition clicking . Pilot won't stay on
Hi, I have a hydropower 16H was working fine then overnight no hot water. I have checked gas water pressure still no go.
If it doesn't strike up, probably the hydro generator ??
Hi,which one is that please.
Where is the pilot light and switch
The pilot is only lit when the hot water tap is turned on, therefore no switch is involved & the pilot turns off immediately after the hot tap is turned off, therefore no wasted gas
I just bought a house with a Bosch Hydropower 10H hot water system. It goes boiling hot and when l adjust the cold l lose the hot completely. I paid a plumber to come have a look and he tells me the only way to adjust the temperature is to have the hot water on full bore and then add cold. Yes......that seems to work but it's insane.....the water knocks my little grandson over and the waste of water is incredible. Surely this isn't how it's supposed to work???? Please will someone tell me it ain't so
I usually turn the hot on to a fairly substantial flow, then mix cold, I'm not sure why the pressure would be high enough to knock your Grandson over, I have an overhead shower rose, so the water falls on me, no problems at all.
Thank you answering! I’ve never had to have a shower on full before just so l can adjust the temperature? That’s not normal surely? Maybe l can get the plumber to turn pressure down…
Bosch hydropower are BAD! I have had issues. Runs on water pressure like you say, goes hot/cold. Need to turn it on full bore. WASTE. Also may be an issue with restrictor water saving thing in the shower head. A nightmare
Oh dear……no solution then . Why on earth would Bosch market such a piece of junk ?
Because people keep buying it. Because people love "German" engineering (see my 1 star review). And yes, the water flow that is required for this device is enough to knock you over (if you have a shower rose without a water restriction valve), because you need to also mix in a shipload of cold water pressure or you will be scalded. Anything less will shut the unit off for hours or even days.
Hello, Our Hydropower H16 has no issue with getting hot water, The issue is as soon as you add enough cold water so the water isn't burning your skin off, after a few minutes it goes cold and you need to turn all the water off and start again. The hot water is fine in the winter but in the summer after exercise you want a tepid shower this is not possible, either too hot or cold. Can this be fixed with the temperature settings?
Hi Gav - did you figure this out yet? I realise your question is a month old, but I'll answer in case you haven't resolved it yet... I'm not a technician, but I have this heater. There's two adjustments for temperature, both under the cover of the unit. To remove the cover, stand in front of the unit, and on either side at the bottom rear, find the two knurled knobs which secure the cover. Unscrew these and remove the cover (pull outwards). There's a slide adjustment that controls the gas: more gas = hotter water temperature. There's also a knob that increases/decreases water flow: more water = lower temperature. Both these adjustments should be obvious to you I think, when looking at the uncovered heater unit. Adjust these two to suit the season, then re-fit the cover. Hope this will help, cheers. Aaron.
...I also found this video that might help you, while trying to solve my own issue with our unit. external link Cheers.
Thanks Aaron for your efforts, I will look at what you have suggested and have a look at the video. Thanks again, merry Xmas Gav
"The issue is as soon as you add enough cold water so the water isn't burning your skin off, after a few minutes it goes cold." It shouldn't do this no matter which temperature you set it at. Mine goes cold like this after 5 minutes. These heaters are lemons.
Also love how comments are turned off for this video: external link
How do you clean the burner
How do i adjust the water temperature
Where is the inline cold water filter on the Hydropower 16H?
Hi Gary, did you work out where the filter is? I am looking for the same and would appreciate hearing.
Haven't had hot water for 3 days, the thing won't ignite at all and I have no clue on what to do or how to reset it ?? Someone please help me
Assuming your gas supply is okay, it's probably dead. There aren't many parts in the heater, but any and all can fail and can cause this. They can be repaired but the parts (if you can even get them) and labour cost make it not worthwhile. Time to get a new water heater. That's what I did.
I have a Bosch 16H and it is still going strong after 15 years. Cabinet not so good. However i want to install a solar hot water system and use the Bosch as back up for cloudy days. Can i run the hot water from the solar system through the Bosch and would the bosch recognise the temperature and remain in shutdown mode. Also would this damage the parts of the Bosch, namely the hydro generator.
We have the Hydro 10. It works perfectly fine in the very hot North West Climate we live in, until it rains. Just flicking of the igniter when you turn taps on but no flame. Rain dries up, problem resloved. I would like to use hot water when its raining. What can I do? System is about 4 years old.
Did you ever solve the problem I have the same issue
No, we didnt. My husband built an awning over it. This seemed to stop it happening.
Where is the filter in the unit , had some dirty well water get through, blocked up everything , my taps filters , washing machine , dishwasher and my Bosch 16H, have fixed the problem but not the Bosch - way out in the country and cannot afford to get the plumber - Help please
Hello, from my personal experience dealing with Bosch,I'd get a qualified plumber to look at it. I just replaced my 15 year old 16H with a new identical unit. After a short period of time it stopped getting hot. I went outside to check the problem and the interior of the heater was in flames. I burned my hands getting the cover off. I phoned Bosch for a warranty repair. Without any hesitation or personal inspection of the heater they told me over the phone, they would not cover it, because an insect caused a blockage which caused the fire of my new unit. It was only a few months old. It was not even due for any recommended maintenance yet. I eventually had my plumber inspect the unit and he did not believe an insect caused the fire, but Bosch would not accept his findings. I reported the unit to energy safe and a few other authorities so it is documented. After fighting back and forth with Bosch for weeks,they eventually agreed to replace the unit, but I had to pay removal of the old and installation of the new unit again. So anyway, I'm sorry for your problem. Just beware of Bosch. Check some of the other comments in this site regarding Bosch, not so good.
Hi, my Hydropower 16H has water supply, gas ignites but doesn't heat the water. Occasionally it gets warm. Your response is appreciated. Cheers Deb
Various answers I’m afraid. Did this occur suddenly or over time ? Possibles are IF it is firing on full flame = possible water pressure / flow rate is too high. If not full flame, possible thermistor not interacting with Gas valve via PCB. Gas valve faulty Burner in need of serious clean , gas air ratio set probably. Worst case scenario, IF your in a hard water area this can scale the hot water heat exchanger. IF this is the case it’s a new heat exchanger & I’d recommend a water softener/ filter.
have pilot light but no gas flow.have gas full and on
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