20 Most Recent Bosch Aquastar 125B Water Valve Assembly conversion kit - 8707002499 Questions & Answers

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No water coming out of hot water taps with a Bosch Water Wizard 10P?

Do you live in a climate where the hot water line could have frozen? If your heater did freeze up, that could be very bad. This is because water actually expands when it freezes and can do a lot of damage to pipes and to the water heater itself. My other thought is possibly a clogged in line water filter. But typically a clogged water filter would make it run with reduced pressure rather than a complete shutdown all water flow.
1/20/2023 6:10:26 AM • Bosch Water... • Answered on Jan 20, 2023
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Can you help with these Bosch 715 EFS GWH Error Codes? AF, 40, 07 -

https://www.fixya.com/support/t13643459-a2_af_error_codes
1/10/2023 7:22:20 PM • Bosch Water... • Answered on Jan 10, 2023
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I have a Bosch AquaStar Tankless Water Heater, GWH 1600P. I have had it close to 10 years with no problems but other day pilot light went out and I can not get it to light and stay lite.

It could be the thermostat sensor They usually have a carbon buildup. They are easy to install and not that expensive. Good luck
2/1/2022 2:43:02 AM • Bosch Water... • Answered on Feb 01, 2022
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Bosch AquaStar 125b suddenly goes cold

your not making sense with you question --state it goes cold in middle of shower --but state it will stay hot or cold forever ----if its the latter continued hot till you shut off water that normal working if the unit shuts down during shower then you have a problem ----unit is set at one temp and runs at that temp and you use shower 1 handle / 2 valve what ever you own to adjust temp their are really only 4 reasons stops making hot water ----2 are usually well water supply --incoming water pressure /flow or to cold ----other are gas valve -or sensor so i would look into your shower handles since almost all have adjustments and anti scold safety
9/28/2021 11:50:13 AM • Bosch Water... • Answered on Sep 28, 2021
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Our Bosch Optiflow GWH 20 wont light, controller. shows error E0. Any ideas how to rectify?

SEEMS LIKE CALLING A LOCAL PLUMBER IS BEST WAY
7/18/2021 10:59:44 AM • Bosch Water... • Answered on Jul 18, 2021
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I have a Bosch Aquastar GWH 2400 CTD EFS LP is there a conversion kit to convert it to NG?

most likely. contact a dealer for advice
6/14/2021 12:52:41 PM • Bosch Water... • Answered on Jun 14, 2021
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Aquastar 1600H. Why is there no spark?

check to see if voltage correct if not replace board if ok bad ignitor
2/14/2021 4:42:02 AM • Bosch Water... • Answered on Feb 14, 2021
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3answers

Bosch Tankless GWH 715 Powers on but does not ignite. Reset does not do anything. Diagnostics not working i.e., water flow 00 but water flowing. May be faulty control unit but how do I confirm?

WOW!!! Great answer by Steve (I know Steve Spam...real name Richard). Lot of time on his hands (37000 answers). Can we get real professionals answering questions. Thank you Richard...let's just call you Dick for short.
1/10/2021 5:26:47 AM • Bosch Water... • Answered on Jan 10, 2021
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My brand new Bosch 1200 will ignite the flame but then shoots off.

Are you holding the flame button until the thermocouple heats up.
10/7/2019 1:02:26 AM • Bosch Water... • Answered on Oct 07, 2019
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2answers

How do I drain the water from a Bosch W135-9 water heater?

you dont drain theses type water heaters
9/9/2019 12:48:16 PM • Bosch Water... • Answered on Sep 09, 2019
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1answer

How do I drain the water from a Bosch w135-9 water heater?

you can not drain these w/ heaters
9/8/2019 2:38:49 PM • Bosch Water... • Answered on Sep 08, 2019
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