Troubleshoot-Bosch-Tankless-water-heater

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2012

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Contact Bosch webpage
Bosch tech support NZ

Troubleshoot Bosch tankless water heater

What?
It's not working?
Again???

Tankless troubleshooting resources for homeowner
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Error codes

Error codes/ pdf
Bosch-GWH2400ES-error-codes/ pdf
Fluctuating temperatures/ pdf
Blank display/ fuse troubleshooting/ pdf
Bosch remote control manual

Bosch error code C1 C6 C7 troubleshooting/ pdf
Bosch EA error code troubleshooting/ pdf
Bosch EC error code troubleshooting/ pdf
Bosch EC troubleshooting 2/ pdf
Bosch A4 E4 troubleshooting/ pdf
Bosch A3 E3 troubleshooting/ pdf
Bosch A2 error code troubleshooting/ pdf
Bosch E1 error code troubleshooting/ pdf
Bosch E9 error code troubleshooting/ pdf

No error code?

No error code pdf
Crossover and Low water pressure
Sample Vent-kit installation/ pdf
Roof venting/ pdf
Ventilating tight house/ pdf

Pro-n-con-tankless

Do the maintenance

Family projects

Clean & maintain to prevent common error codes
Clean water filter monthly, delime tankless yearly!! Big family fun on the horizon!!
Tankless operation overview/ pdf
Descale each year
Maintain your water heater/ pdf
Maintain water heater 2012/ pdf
Buy flushing system $199 Buy whole new tank-type water heater $207

I like projects

Some tools required

Checking proper draft for venting
Pilot flame/ no burner flame troublshoot/ pdf
Removing and cleaning tankless burner
Remove and clean burner 2
Cleaning burner and combustion parts/ pdf

Support

Get up your wallet

Bosch Phone Support:
Gas Products Technical Support: 800-642-3111
Electric Product Technical Support: 866-330-2729

Bosch online tech support:
Support center with manuals, service bulletins
TechnicalSupport for gas
Support for electric

Freeze prevention

Product manuals/ gas

Current posted manuals
Bosch aquastar manuals
Bosch WR400
Some older manuals 2011 etc:
Bosch-250SX-NG-and-250SX-LP.pdf
Bosch-250SXO Outdoor only
Bosch-GWH-2700ES-NG-LP
Bosch-GWH-2400ES-NG-LP-indoor
Bosch GWH 2400 ES
Bosch-2400EO-outdoor
Bosch-2400E-NG-LP-indoor
Bosch GWH 2400ES
Bosch Eco therm

Bosch-2400-ES low elevation
Bosch-1600PS-indoor
Bosch-1600H-indoor
Bosch-1600P-indoor

Bosch AQ1-425HN-125B-HX-BS-BL
Bosch-125FX-NG-LP-indoor
Bosch-125BO-NG-LP-outdoor
Bosch-1000P
Bosch Aquastar 170PV
Bosch-AS240FX
Bosch water wizard 600
Bosch 10P
Bosch AquaStar 38B NG LP
Bosch Aquastar 80VP NG LP
Bosch 13P 16-P

Misc manuals

Bosch remote control manual
10P Pilot specs
Water wizard lighting instructions

Winterize and freeze protection/ pdf
Outdoor installation manual/ pdf

Service bulletins/ gas

Aquastar service bulletins
38B and 125 service bulletins
240 service bulletins
VP service bullitens

Product manuals/ electric

Electric tankless

Bosch-Powerstar-AE125-AE115 manual
Bosch-Powerstar-AE12
Bosch-Powerstar-AE3.4-7.2-9.5
Bosch-Powerstream-RP1-RP2-RP7-RP9
Bosch Ariston GL2.5, 4.0, 6+
Bosch Ariston P10S P15S

Troubleshoot Ariston GL electric

How to wire tankless electric water heater

Make sure qualified service is available in area BEFORE buying tankless. Check rates for parts, service, and yearly maintenance before counting tankless savings

Bosch parts at Houseneeds.com

Larger image

Tankless must be de-limed each year:
Delime-tankless-water-heater.pdf
De-lime tankless yearly
Decaling the heat exchanger

Buy flushing kit for $153
Buy service valves for $75
Washing machine hoses at Amazon
You need service valves and pipe parts, 1-2 washing machine hoses with female connection both ends, circulation pump, and find 5 gallon bucket along road, plus buy 2 gallons white vinegar at grocery store.
Only takes 45 minutes! Assemble parts for flushing and do it each year until yer widow inherit the job.
Arern't you glad you squeezed that tankless in the closet, over the hardwood floor? What a space-saver!
Or just install ordinary tank type water heater yourself for $385

Disclaimer/ Find local technician

Post question on pro water heater forum:
thetankatwaterheaterrescue.com/forums

7) Search Fixya questions and answers
Bosch_1600h_lp_liquid_propane_aquastar_a/solutions

10) Install DIY tank-type gas water heater and avoid the whole headache
How-to-install-tank-type-gas-water-heater.html
"The genius of tankless is not that they save money or energy. Because they don't.
The genius is marketing that targets folks who believe tankless save money and energy."

Troubleshoot Rheem Tankless

Atwood water heater resources

Flow Rate

Check manual for minimum flow rate to activate tankless.
Average faucet 2 gal per minute flow rate/ Average tub 2.5 gal per minute flow rate
1/2 gallon per minute means: Faucet must fill quart in 30 seconds and gallon in 60 seconds
3/4 gallon per minute means: Faucet must fill quart in 20 seconds and gallon in 80 seconds
Crossover and Low water pressure can reduce flow rates
Higher thermostat setting can reduce hot water flow when more cold water is added at faucet to moderate temperature.
Promise of unlimited hot water not consistant with water conservation or energy savings.

Checklist to see if household suited for tankless

Replacement Transformer $223
Whole new tank-type gas water heater at Lowes $331

Energy savings Bosch compact gas Tankless fuel cost calculator	All costs are energy Don't forget to Subtract hidden cost of tankless: Yearly maintenance, cost of repair, etc for example yearly deliming
How to read the gas meter	Winterize and freeze protection/ pdf