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Power light on tankless water heater is flashing

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

Therinnaiguy
  • 1420 Answers

SOURCE: rinnai tankless water heater keeps beeping and showing LC

Time to flush it. LC indicates lime scale build-up.

Posted on Nov 28, 2008

cballard
  • 18 Answers

SOURCE: Rinnai tankless water heater code 12

12 - Flame Failure or Poor Ground

1. Immediate code 12 is usually a defective gas valve, power supply problem, or defective fan motor wiring harness.

2. If code 12 occurs after a few seconds it indicates that proper operation was established, but then stopped unexpectedly.

3. Verify that fuel is being supplied to the unit.

4. Check for proper electrical ground. Unit must use a grounded power supply.

5. Check for flue blockage on inlet or exhaust.

http://www.foreverhotwater.com/service-codes.php

Posted on Dec 31, 2008

gary1121
  • 332 Answers

SOURCE: reset button for tankless water heater

you need to unplug the unit, wait for 30 seconds reset the temp to the lowest temp, then try it, if this does not work it might have done something to the circuit board, are you on a gfi out let it needs to be there is water and ele, and should be on the gfi with a reset on it,,

Posted on Jun 01, 2009

  • 1 Answer

SOURCE: My Paloma tankless water heater flashes C2 11 error code

I just had the same problem and I fixed it in about an hour or 2. First shut off the gas,water and power(unplug it) Take off the cover There are about 20 screws above the electrical circuit board. You have to remove all of those screws to remove plate that is covering the burner assembly. The burner assembly has these 3 pins that look like number 7's these are covered with build up and gas can't flow right. That's why you get the c211 error not enough gas. Take a wire brush and gently remove any build up, I also cleaned the thermocoupler which is next to the burners. It looks like a metal pin with a couple of wires coming out of it this was also very dirty. I took a can of air and basically freshened it up It works perfect now. Email me with any Q's at Mario@myredr.com Good Luck All that you need is a long phillips screw drive and a drill because its about 25 screws
The burner assembly has 2 screws all the in back underneath the assembly once you remove those 2 the assembly comes out . You don't have to disconnect any wires.

Posted on Oct 29, 2009

  • 244 Answers

SOURCE: Paloma tankless, gas, water heater, error code C7 76

If you look on the left hand side of the burner control module you'll see 4 capacitors - the capacitors have most likely failed...pretty sure anything code 76 is P/S failure. It may also be covered for manufactures defects. If the cap is blown..the top will be slightly raised as apposed to flat like the other nearby caps - they are called top blow capacitors...the damage should be evident.

Posted on Nov 01, 2009

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Power lite flickers onwater heater when drawing hot water


Light flashing while water is flowing means you have a bad control board. Needs to be replaced. They can be purchased online

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I have a PowerStar tankless electric water heater, model #44-557710 and it was replaced about 3 months ago. This morning I had hot water and this afternoon I do not. When I call for hot water a red light...


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.
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RichmondG40PVpower vent gas water heater


1) Type and brand water heater unknown.
Copy following link for Rheem-Richmond tankless error codes:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

2) Question posted under Richmond tank-type power vent.
Error code 24 appears to be Rheem-Richmond tankless water heater.

3) Add a comment with more information about type, brand, age of water heater including what you have tried so far.

4) Call service technician to catch up on required yearly maintenance.

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Rheem rte13 standby (green) light not on


You might have crossover problem caused by bad faucet cartridge.
http://waterheatertimer.org/Crossover.html

The green standby light should come on when 240Volt power is applied. Page 6 manual.
Both red lights should come on when tankless is activated. Page 6 manual

RTE 13 requires 60 amp breaker and 6 gauge wire
http://waterheatertimer.org/How-to-wire-Tankless-electric-water-heater.html
http://waterheatertimer.org/pdf/Rheem-TanklessElectricUC_AP15447.pdf

Factory temperature setting is usually default 120 degrees.
Adjust temps page 11 manual
Thermostat calibration is always approximate.
120 degrees is not hot enough to burn the skin.
Exceptionally cold incoming water temperature can cause tankless not to heat enough hot water: install tempering tank to preheat water to room temperature.
Tankless cannot be exposed to more than 11 grains hardness in water. Delime tankless yearly, clean water filter monthly, do not install low-flow restrictions or conserve water since the flow rate must remain high for tankless to activate.
Rheem does not post service manuals for their tankless water heaters.
Call Rheem 800 432-8373

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I have a RMTG-53dvn piped in parrallel with a traditional water heater because I used to have two traditional in parallel. The unit never kicked on with no trouble code, so I piped in series with a...


I could see how it might not work in parallel. Much water would go thru the conventional heater, so there would be low flow thru the tankless.
Now, the tankless is getting hot water from the conventional. Try shutting the conventional heater's power source off so the water gets cold, then see what happens with the tankless.
Gary

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I have a noritz water tankless heater and hot water stopped. Red light blinking three times. Need help.


Three flashes typically indicates the unit is overheating due to scale. I'd try a descale initially and see if that remedies the problem.

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