Bosch Electronic Highflow Questions & Answers

is there a pilot light

does this unit have a pilot light

How to start controller

We have the Highflow 17e Natural Gas hot water system.
Over the past year or so it has been shutting off - ie in the middle of a shower. We have had service people around and they cannot figure out the issue. I have also spoken to one or two who specialise in these systems - also no idea. Basically they tell us that it would be cheaper and easier (for them more likely!) to just replace the whole system.
It works fine for most of the time - and problem free for months on end. Then suddenly - as is the case now (May 2020) - it shuts off just about every shower; and often several times.
What we are doing is switching the mains power off for a few seconds; then on again and it seems to 'reboot' the control system - or whatever!
We do not have the control unit for this system.
It is a constant annoyance. Does anyone know about this issue - what is actually wrong. Is there a fix??
Typically at this time - when we are homebound, jobless, no money, winter approaching - these things happen.
Its probably 7-8 years old.

We have the Highflow 17e Natural Gas hot water system.
Over the past year or so it has been shutting off - ie in the middle of a shower. We have had service people around and they cannot figure out the issue. I have also spoken to one or two who specialise in these systems - also no idea. Basically they tell us that it would be cheaper and easier (for them more likely!) to just replace the whole system.
It works fine for most of the time - and problem free for months on end. Then suddenly - as is the case now (May 2020) - it shuts off just about every shower; and often several times.
What we are doing is switching the mains power off for a few seconds; then on again and it seems to 'reboot' the control system - or whatever!
We do not have the control unit for this system.
It is a constant annoyance. Does anyone know about this issue - what is actually wrong. Is there a fix??
Typically at this time - when we are homebound, jobless, no money, winter approaching - these things happen.
Its probably 7-8 years old.

When my gas bottle runs out and i switch to the second bottle the gas won't light up. i remove the front cover and the earth leakage box has a red light on, if i reset it it then works, is that normal, has happened to the last 2 bottles

water passing through but not heating up

Hi I have a 25e. I had a power outage last night couple with a gas bottle change over and I didn’t realise the gas bottle wasn’t open. I have reset the breaker switch in bottom left hand corner and orange light is on but still no pilot light. And open gas bottle Any suggestions please

I have Bosch 22e instantaneous gas tank-less hot water system. Electrician repaired a corroded wire however since then the display does not pass the 40C, it used to be 50C. I need to rectify the situation please.
The controller in the bathroom must be working because when on bath mode the temperature can be adjusted to 48C, can you help, thanks.

I have an instantaneous Bosch Hot water system (Tank less) Model 22e.
stopped working, electrician white wire was burnt and was disconnected from the flat whit plug.
The Electrician by passed the plug and joined the wire. the heater works however the control display unit inside the bathroom shows only 40 *C and does not go up further. it doesn't seem to be broken or malfunctioning, hence when I move the select button to Bath mode the up button moves from 40 to 48 *C without a problem, I need to know how to set the unit, your support is much appreciated. Thank you
Joseph Baraya 0416 0416 40

Hi, My Bosh hi flow 21 is making a very loud noise when I turn on the hot water.
I have cleaned the filter and run the water through, but still continues to make very loud noise.

I have a Bosch 25E highflow and the temperature doesn’t work in one of the bathrooms, what do I do?

How do I turn on my Bosch 26 Water heater? Ive just purchased a house and the previous owners have not left instructions for turning it on

Can the cabinet be painted to suit house colour

I am in a rental and the Bosch Highflow 16 has stopped working. There is gas and electricity to the unit. What can I do please?
Paul

What size generator needed to run heater

We have had one of these systems for years. Just lately when you have a shower the hot water cuts in and out. The shower goes hot and then cold. When watching the unit the light actually goes off and then you can see the gas start. What should we do?

Hi. We have Model 25e - we recently re-did our kitchen and as part of that changed the kitchen tap. I understand that the heater switches on when the water flow is of a certain volume (pressure). The pressure on the new tap is lower than on the old one and sometimes the heater does not switch on. Is there a way to change the setting for the triggering pressure?

Hi,
My Bosch hws turns on, but the water stays cold. I’ve had this issue before and by turning hws off at power it usually works. I’ve checked and in fact changed to a full gas bottle, (gas stove working fine this whole time.) checked power point that there is power to it (hair dryer works fine).
You can hear the how the system goes on... and water run through, but I don’t and cannot hear the pilot light start up like other times. System is only about 5 years old and serviced regularly.
Can you help me please?
Diana

Why does my Bosch Highflow 21e turn off when you put the cold water on