Bosch gas water heaters
1 report to CPSC, the latest made Jan 1, 2012. A report isn’t a recall.
Watch and the shortlist are kept with a free account, on every device. Your watch list. CPSC’s own search is on saferproducts.gov.
At a glance
From SaferProducts.gov, released Oct 25, 2026.
- 1report to CPSC
- Jan 1, 2012the latest report was made
- Jan 1, 2012the earliest
- 1with the company’s comments
- Brand
- Bosch
- Maker
- BOSCH THERMOTECHNOLOGY CORP.Makers, importers or sellers, as the reports name them
- Product
- Gas water heatersCPSC’s product type: Gas Water Heaters (code 118), in Home Maintenance and Structures: Plumbing & Bath
By month
The numbers, as a table
| Month | Reports |
|---|---|
| January 2012 | 1 |
How badly anyone was hurt
- No one hurt 1 CPSC: Incident, No Injury
As each report says it, in short words; CPSC’s own words are under each.
The reports, as CPSC published them
Reports people made to the U.S. Consumer Product Safety Commission. CPSC publishes each one after sending it to the company named, and doesn’t guarantee they’re accurate. A report isn’t a recall.
Each report is the words of the person who made it, as CPSC published them. The company’s comments, where CPSC published any, are set apart as the company’s own.
CPSC, SaferProducts.gov public database export. Released Oct 25, 2026. Updated daily.
-
No one hurt Made Jan 1, 2012, sent to the company Jan 25, 2012, published by CPSC Feb 8, 2012
The product, in the report: bosch tankless hot water heater...wall mounted chimney vented
a dangerous situation occurred when I started the washing machine which created a call for hot water. I heard the water heater clicking at least 10 seconds followed by a burst of flame. Apparently this was caused by a buildup of natural gas which occurred after the delayed ignition. It seems the gas valve opened despite no flame sensed by the flame sensor of the device. Upon further inspection, the pilot tube failed to produce sufficient gas to be lit by the ignitor which continued to spark. After 10 seconds of sparking the gas valve opened and a miniblast occurred..Immediately the device was shut off...I took it apart to see if there were any user serviceable parts but this is an engineering wonder and I noted how easy it was to remove the pilot assembly. There appeared to be 2 solenoid gas valves which I removed from the housing to inspect. I suspect that somehow one of these valves failed which prevented gas from entering the pilot tube..I put everything back together and everything seemed ok..However. this is an extremely unsafe condition which needs to be recognized and I would like some assurance that this condition never reoccurs. I need to have the safety devices checked on my unit
- Model
- gwh 425 hn
- Serial number
- 789-000-26
- Bought from
- Riley plumbing, Connecticut
- Bought
- Aug 26, 2008
- Where
- southington, Connecticut: Home/
Apartment/ Condominium - Who was involved
- Age 47, Male
- The reporter’s relation to them
- My Friend /
Neighbor / Co-worker - As this report names them
- Brand Bosch, made or sold by BOSCH THERMOTECHNOLOGY CORP.
- How badly, in CPSC’s words
- Incident, No Injury
CPSC’s disclaimer
Disclaimer: CPSC does not guarantee the accuracy, completeness, or adequacy of the contents of the Publicly Available Consumer Product Safety Information Database on SaferProducts.gov, particularly with respect to information submitted by people outside of CPSC.
Word for word, from the disclaimer in CPSC’s export.
Sources
Sources
-
U.S. Consumer Product Safety Commission, SaferProducts.gov public database export.
Released Oct 25, 2026 and checked Oct 25, 2026. Updated daily. Public domain (U.S. Government work). CPSC asks to be credited, and that no endorsement be implied.
Reports of harm are from the U.S. Consumer Product Safety Commission (CPSC), on SaferProducts.gov. CPSC does not endorse Hearth Record.