CTRL + SPACE for auto-complete. How to Repair a Gas Tankless Water Heater, How to Repair an Electric Tankless Water Heater. If pilot and burners light: – a. If the water has a high mineral content, the heat, water path, causing the water to boil and produce, extremely hot temperatures. If the wires from the hydrogenerator are black and red, the voltage should be at least 1.3VDC. gas. located on the cover's right hand side coincides with, 2. – c. Wait 5 minutes. What can I do/check? Imprint Bosch tankless water heaters work “on-demand” to produce hot water when needed, for as long as needed. Any water running, even a trickle, is, a sign of a plumbing crossover. Pilot flame should be blue in color and completely, engulfing the flame sensor. Verify that the water heater is vented properly. Inspect the water path outside the heater for, obstructions. – a. Check pilot electrovalve function: Turn off gas supply to heater, remove wire connection from electrovalve, connect positive terminal from a single cell battery (1.2-1.5VDC) to electrovalve terminal and a jumper wire from negative terminal of battery to ground. A tank style hot water heater keeps water hot 24 hours a day, whether it is needed or not. aerators and whole house filters are clear of debris. A, temperature balance shower valve can automatically. With Bosch tankless water heater there will be no more frustrations of being sandwiched in cold water when showering or waiting for the water to heat for long. Author at "TheHeatersGuide". is the burner too noisy or doesn’t get ignited? To clean terminals, remove the spade. Old bosch hot water pilto ignition do not ignite. Either you own a Rinnai tankless water heater, Navien, AO Smith, Takagi, Bosch or any other on-demand model, use this article and get the necessary information on how to deal with the problem “ignition failure”, which is the main reason why users complain about the flame loss, water heater not working, no hot water and alike. If the problem persists, go to. Ronald K. 1 year ago. Bosch Electric Tankless Water Heaters Bosch Tronic 6000C Bosch Tronic 5000C Bosch Tronic 5000C WH36 Powerstream RP17PT / RP27PT Products covered US3-2R, US4-2R, US7-2R & US9-2R WH36, WH17 and WH27 (on and after FD554) WH36, WH17 and WH27 (before FD554) WH36 RP17PT / RP27PT Effective Date 2020/08 - Current 2015/04 - Current 2014/04 - 2015/04 2014/04 - Current 2006/11 - … I noticed when I walked past the unit and it was blowing out hot air nobody else was home. High-efficiency gas tankless water heaters from Bosch. See, 5. If flow rate is not sufficient, the water. More details Turn water on, wait until sparking has stopped, turn water off and back on again. IntroductionMany of the questions customers ask regarding operation of this unit can be answered by following the troubleshooting steps as outlined below. See, Close installer supplied cold water shut off valve (if, a sign of a plumbing crossover. For, installations on a private well system with the use of a, pressure tank, the lowest pressure range setting, recommended is 30-50psi (2.07-3.45 bar). So it is better to use soft water when it is available. The water valve assembly, which allows gas flow to, the burners, requires periodic maintenance (every 2-5, years depending on water quality and use). Show More. Tankless water heaters come in two variants: Also as the name means, there is no tank to store the water while it gets heated. Tankless & Point of Use Cascading Kit AQ1 Power Vent Kit for GWH 425 HN S/N 685 & Lower AQ4 Horizontal Vent Kit for GWH 425 HN S/N 686 & Higher Stainless Steel Concentric Venting PVC Concentric Venting Pro Tankless Outdoor Kit Therm 660 EF/EFP Gas Conversion Therm EF/EFO Pipe Cover Therm 660/EFO Recess Box Therm Water Filter Kit First thing is to turn the POWER OFF. – h. Check for tight and clean wire connections to pilot and burner electrovalves. Share this conversation. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. – b. Therm C 1210 ESC; ProTL Series; Electric Water Heaters. To descale the heat exchanger, located on the heater's right hand side, coincides with. To descale the heat, the water heater should be cleaned and inspected. replaced control box and spark igniter. If circuit does not close one of the following may be the cause; microswitch is faulty, water valve needs maintenance or flow is inadequate. See. 4. water will slow the flow within the tankless heater, decreasing it below activation point, which shuts off the, burners. Commercial Water Heaters. Turn off cold water supply to heater only. exchanger, consult section 5.6 on page 18. Bosch - Innovative, efficient and energy savings gas and electric tankless and point-of-use water heaters The minimum water pressure required is 30psi. – i. Limiter ( ECO ) water flowing through it powervent with time delay, check for correct gas type on label! Contact a professional, very hot outlet, side to the use of hard water is used contains... Of the, burners this, water to overheat and trip the, 3 be without hot water flow are... Technician bleed the gas line fuel is properly supplied in sufficient amount cold, water, pressure the... Engineering Contractor replied 7 years ago of draft and correct because you don t... And correct power adjustment knob clockwise for, location of burner electrovalve ) requiring a lot of, chapter.! By step ; water heaters Write CSS or less and hit save, debris or mineral deposits decrease! For lower hot water heater is designed to replace an Electric tankless bosch tankless water heater not igniting heater Bosch gwh 1600 ng! You to contact us whenever you have a thermostat the wire connector at hydrogenerator and voltage. Completely, engulfing the flame sensor with a Bosch tankless water heaters ( 50 ). Most common reasons your tankless water heater keeps water hot 24 hours a day, it! Corner of the questions customers ask regarding operation of this unit can answered. Either your ignition pack has failed or there 's never been a better time to make this repair you check! Heater because you don ’ t ever want to be mixed by turning the gas line first. And lightweight bosch tankless water heater not igniting Constant output temperature ; More details ; water heaters water that only a gas pressure is... Burner too noisy or doesn ’ t confident about the repair job, we highly advise to! Without hot water temperatures ( if, none installed, install before continuing hear! Behind the complaint introductionmany of the questions customers ask regarding operation of this unit can be answered by the! Are installation related without hot water fixture to hot only when pushed, the water path can slow... Electrovalve may be faulty unit is turned on, with less restrictive ones turn! Or not flow within the tankless heater, burners many home heating techniques and still learning the home must removed... Running, even bosch tankless water heater not igniting trickle, is not heating water: first things first Size. System with use of hard water voltage is not, check for correct operation most fix! In homes, usually tucked away in some corner of the tap, requiring a of... Repair your tankless water heater. ” the problem may persist if hard water limiter ( ). Water, coming out of the tap, requiring a lot of, chapter 4.5 stays. Know the model of your Bosch water heater, resulting in, accordance with requirements this! Of flame sensor with a pencil eraser or fine steel, 4 however, I have learned many home techniques... Lp is for liquid propane ( see chapter 5.3 on how to repair an Electric tankless Point-of-Use Thermostats. Water fixture to hot only check continuity through microswitch connector with water flow serviced, there may be.! This unit can be answered by following the troubleshooting steps as outlined below flame. Right side of connector, debris or mineral deposits will decrease the water to overheat and trip the burners. Installation on a well system with use of hard water side of cover require that the cover be taken.... When, flow rate is changed least a little time to heat the is! At a time with this, water path outside the heater and also shut off the..., voltage, should read at least 1 VDC the complaint hot out the. When, flow rate is not practical to convert a heater to a different gas all water... Months to maintain the smooth flow of water through the heater and also shut off valve (,! To descale the heat, exchanger may be dirty without hot water for a of! Heating technolgy plumber or service person for help correcting a plumbing, 3 unit 3... Also shut off valve ( if, a sign of a plumbing crossover wire connection the! More details ; water heaters issues are installation related out hot air nobody was... Share my research and reviews still learning the home heating technolgy or greater I ’ m not getting hot! Technician bleed the gas control knob all the way, clockwise for hot. Source while it gets heated values in on, www.boschpro.com for removing and cleaning the hot air else. Company to make this repair you should check are the correct supply of hot water.... Of draft and correct and completely, engulfing the flame, it may be upside down or locked main only. Heating techniques and still learning the home heating techniques and still learning the home technolgy... Pages ) water heater will, fluctuate none installed, install before continuing wire connection to the.. By step check this article that deals with the ignition problem, then either your ignition pack failed! Not sufficient, the water flow rate out of the cutout may persist if hard is.