How to repair bosch powerstream redring model rp12pt

Could be your igniter or possibly your control board. The red light not being on indicates you most likely have an electrical issue. Check your breaker as well. If you nee any parts this site will have them all

http://www.suburbanrvparts.com/

call bosch ----- they have what you need and maybe online for you

Call Bosch. And exercise your 10 year parts warranty rights.
Copy following link for Bosch power star manuals:
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html#Ariston
Check circuit breakers, fully off and then fully back on. Test if voltage is at least 80% rating plate on unit. Check that temperature dial is set correctly. Call for service again.
Don't install tankless computer that heats water. You cannot fix this computer yourself, and they are problematic for owners.
Go to Lowes right now, spend $285 and buy tank-type electric water heater, roll it into your house, and save money, since the electric tankless computer heater costs average $100 more per year to operate than tank-type heater for average family of 4.
Tank type heater can be repaired by homeowner same day for $25 using off-the-shelf parts from hardware store. And that empowers the regular guy, and gets you off the junk tankless treadmill.
Gene

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Call Bosch
Gas Products Technical Support: 800-642-3111

That model number is only shown at one website, and that model number is not shown at Bosch.
Open following link for Bosch:
http://www.boschwaterheater.com/BoschHotWatercomHome/GasProducts/tabid/331/Default.aspx
Search of Bosch for that model number shows no result.

Some water heaters do not have a pilot light. Instead they use hot surface igniter rod that glows red hot
The igniter rod ignites the gas after solenoid valve opens and gas flows to combustion chamber.
The igniter rod and heat sensor have to be operational, and have to be positioned correctly for ignition to take place.
If igniter rod is not working, or if heat sensor does not detect flame, then gas solenoid valve shuts down and water heater does not heat water.

I don't have specific suggestion for tankless tripping breaker or if that is a circuit breaker problem or a tankless problem.

1) Move wires to another same-size breaker and see if problem persists.

2) Compare amp draw on tankless label with wire size and breaker size amp rating.
For example 30 amp breaker using 10ga wire is rated for 80% of listed amps or 24 amps.

3) If you are drawing full 30 amps, then 30 amp breaker is getting hot. Breaker trips with heat. Older breakers can trip more easily.
http://waterheatertimer.org/How-to-replace-circuit-breaker.html

4) Before calling service technician, open following link for Bosch troubleshooting steps.
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html

5) Be sure to read manual for yearly maintenance requirements.

6) Add a tempering tank for incoming cold water problem.
http://waterheatertimer.org/Tempering-tank.html

7) All gas tankless brands can be repaired by homeowner for $330.
http://waterheatertimer.org/How-to-install-gas-water-heater.html

Electric water heater can be repaired by homeowner.

Four things can cause NO hot water:
1) ECO red reset button tripped. Remove top cover on water heater, push red reset button on thermostat. Put insulation and cover back over thermostat.
2) Circuit breaker is tripped, circuit breaker bad, or wire loose in breaker box. Turn breaker on-off and listen for crackling or fizzing sound, and burned smell. Test breaker for 220Volts. Test top two screws on upper thermostat to see if water heater has electricity.
3) Bad upper thermostat. Replace upper thermostat.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
4) Bad upper element. Test upper element.
http://waterheatertimer.org/How-to-test-water-heater-element.html

Under the top cover on the side of your water heater, cover's a thermostat that has a red reset button that may be tripped. Press it to reset.
If you have access to a wire tester to test electricity coming into water heater. Check your breaker box for a tripped breaker and power to element's..

Below is a link with information about water heater's that will be helpful to you.
http://www.water-heater-repair-guide.com/waterheaterthermostat.html

http://www.water-heater-repair-guide.com/electricwaterheatertroubleshooting.html

Remove access panels on water heater's side the top thermostat has a red reset button on it.
Press reset button and it will take about 30 mins or more to get hot water. If you have a meter or test light check wires to elements for power.

This would be the first thing to check on the water heater.

Make sure breaker is turned on. If that isn't it tell me model number and maybe I can help you more

Here is the run down>
Water too cold Neon light on:
Cause:
1). Water flow is too high-adjusting the water flow as follow; open fully both inlet and outlet shut-off valves at the heater, then turn on fully the highest flowing hot water faucet closest to the outlet connection. Adjust the outlet shut-off valve until the water flow from the hot faucet corresponds to the approximately 3.6gal/min at 105 degree.
2). One of the power supplies is not on-check the breaker box, there should be three ganged breaker, each corresponds to each of the heater power supply.
3). The power supply voltage has dropped-reset the breaker in the breaker box.
4). Temperature dial is turned too low- temperature adjustment is made using the dial on the bottom edge of the unit. The adjustment is between approximately 95 and 135 degree F. Turning the dial clockwise increase the temperature settings.
5). The inlet water temperature has dropped-readjust the temperature dial.

Attached link is for Bosch hotwater heater installation. This should give you idea as to what to look for.
http://www.boschhotwater.com/Portals/7/TechManuals/AE115_AE125_English.pdf
The following link is Basch Hotwater troubleshooting Q&A, this should also give you some help.
http://www.boschhotwater.com/HelpfulResources/TechnicalSupport/PowerStarModels/AE115AE125/Troubleshoot/tabid/632/Default.aspx

Please post back on this thread, If you still having problem.