E4 error code on Bosch tank less hot water heater, this is what it says..... E4: Backflow...
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E4 error code on Bosch tank less hot water heater, this is what it says..... E4: Backflow temperature sensor over 309°F. The appliance will close the burner and lock. A. Check combustion air and backflow vent piping for blockage. Check if secondary fan connections are disconnected. Check venting specifications are met. Long vent lengths, venting with more than three elbows, blocked vent or combination venting may cause this failure. Check sensor resistance (see Fig. 61, page 44 in manual).
i have a bosch confort tankless water heater. it shuts off heat after 5 minutes. please advise...
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I HAVE A BOSCH CONFORT TANKLESS WATER HEATER. IT SHUTS OFF HEAT AFTER 5 MINUTES. PLEASE ADVISE SOLUTION. Jerry
I don't have a manual. I know our water treatment system is not set correctly. The control panel...
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I don't have a manual. I know our water treatment system is not set correctly. The control panel was beeping continuously. I don't know what the ''up'', ''down'' or ''regenerate'' buttons are for.
after bleeding 1 rad in this house I could not get the second rad to clear. is this a combi with a...
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after bleeding 1 rad in this house I could not get the second rad to clear. is this a combi with a pressure inlet and guage somewhere. no manual found and not sure how old.
got a ravenheat ls 1oot combi boiler not working red light on timer on not making any noise works...
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got a ravenheat ls 1oot combi boiler not working red light on timer on not making any noise works every now and then for short periods
Traditional water heaters use a storage tank to hol... Read More
Traditional water heaters use a storage tank to hold heated water until it is needed. They typically run off of natural gas, but electric and propane heaters are also common. In addition, tank less water heaters are available. They operate by routing water to where it needs to be instead of storing