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What is error code 76 on a Rheem tankless hot water heater that has propane connection?


Communication Fault with Remote Control. At a minimum check the following: 1. Check remote control wiring for loose or damaged connections. 2. Bypass remote control cable by connecting remote control directly to remote control terminals on PCB. Replace cable if found to be faulty. Yes Either the wiring or the remote control is at fault. To rule out the wiring, disconnect the remote control and use a short, good jumper wire and connect directly to the remote terminal on the PCB. If the unit works using the remote, then the wiring is at fault. If the unit does not work, then the remote is at fault. Did the unit go to main burner? No Replace the Printed Circuit Board Remove remote control wires from wiring terminal on the PCB. Plug unit in and open a hot water source.

Dec 16, 2016 | Rheem Water Heaters

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Get hot water from your Rheem tankless during a code 76 error


This doesn't always work, but on the Rheem tankless Gas/Propane water heater, if you're experiencing a code 76 error; disconnect the remote control unit (either from the water heater or the remote) by lifting the wires for the remote connection. Typically you'll get a C1-C8 error code, followed by a code 76; if you're getting a straight code 76 and nothing else, this procedure probably won't work.
Code 76 is a total power supply failure on the printed circuit board (PCB) assembly, which is the communication/power supply for the remote control unit. But, if you're getting a supplemental code (C1-C8) this procedure will most likely supply you with hot water until the replacement PCB arrives.

on Dec 01, 2009 | Rheem Tankless water heater for 1-2...

1 Answer

No power on unit/Remote Controller


try leaving the remote unplugged and unplug the unit for 10 seconds and plug only the unit back in. If you get hot water without the remote connected but nothing after doing the same thing with the remote connected then your remote may have shorted out. Otherwise your circuit board may have had a short. In which case, call Noritz for a replacement.

Nov 21, 2013 | Noritz Water Heaters

1 Answer

How do I manually change the temperature on Noritz N-0631S tankless water heater if I don't have the optional remote controler?


There are temperature jumper clips located on the inside left wall of the heater. They will be in a small plastic baggie. The procedure is as follows:

1. disconnect power
2. install the jumper connector in the plastic slot located between the remote control screws on the circuit board (right hand side of the heater)
3. reconnect power

Mar 06, 2011 | Noritz Residential Heaters Tankless Water...

1 Answer

For the past couple of weeks, when we try to use hot water in the morning the system shuts off. The error message we get is C7. Often we can turn off the control panel, turn it back on again and then it...


Sorry to read about your problem, I hope this helps you out.

Turn the power off and remove the cover. Find the two terminals that the remote control connects to and disconnect the remote control wiring. Turn the power back on and open the hot water tap and see if the unit comes on. If it comes on, this is a problem with either the remote itself or more likely the wiring between the remote and the tankless unit itself. Without a remote it will control to 120 degrees F. and will run without the remote.


I tried to help you. Please help me and Rate/Vote on my response, thanks and good luck

Dec 23, 2010 | Rheem Tankless Hot Water Heater...

2 Answers

I have a Rheem tanklees water heater, model RTG-74XN-2. The remote shows the following error code. C4 then the number 76 then C4 then 76. What does this code mean??


Contact Paloma/Rheem 866-720-2076. Super nice! I just called regarding mine. Having same problem Rheem Paloma sending parts out tomorrow overnite. Try turn it on/ off by moving tiny switch under the unit that tells you the temperature. Run your fingers along the bottom to find it. That is a temporary fix. Below is a website with all the error codes, so you know what is wrong. Good luck and blessings!

http://www.palomastore.com/paloma_error_codes.html

76
Communication Fault with Remote Control Check remote control wiring for loose or damaged connections. Bypass remote control cable by connection remote directly to remote control terminals on PCB (replace cable if found to be faulty). Replace remote control. Replace PCB

76
Communication Fault with Remote Control Check remote control wiring for loose or damaged connections. Bypass remote control cable by connection remote directly to remote control terminals on PCB (replace cable if found to be faulty). Replace remote control. Replace PCB

76
Communication Fault with Remote Control Check remote control wiring for loose or damaged connections. Bypass remote control cable by connection remote directly to remote control terminals on PCB (replace cable if found to be faulty). Replace remote control. Replace PCB

76
Communication Fault with Remote Control Check remote control wiring for loose or damaged connections. Bypass remote control cable by connection remote directly to remote control terminals on PCB (replace cable if found to be faulty). Replace remote control. Replace PCB

Nov 06, 2010 | Rheem Paloma PTG-74PVN / RTG-74PVN...

1 Answer

Model RE2424 W-Z (SP) one the 2 remote controllers is not displaying any power lights or 2 digit display. The other unit still works and the heater unit is functioning ok. Would like to get the other...


Disconnect both controllers. Put the one that works ok on the wiring supply to the one that isn't working. If it does not work you have a wiring problem. If it does work then the controller is faulty. This wiring is 12volt low amps by the way. When connecting the wiring can go either way on to the back of the controller. Don't let the two wires touch if the power is on to the heater, this can blow the circuit board on some older models.

Aug 05, 2010 | Rinnai Digital Remote Water Heater Control...

1 Answer

Remote control unit flashes 76. No buttons on the remote will function. Water heater will not come on when there is a demand for hot water. Any suggestions?


Remove power source from the unit. If remote control is installed; remove cover and lift the control wires on the terminal...can be accomplished from either end.

Restore power and see if unit functions normally.

Contact Paloma/Rheem customer (800-432-8373) support and notify them IF you are getting a code "76" error. Rheem has recently extended the warranty on the "Burner Control Assm."; which is your problem. The C4-C8 portion of the error code, is where the unit stops the ignition process...burner fails to light, or gives you intermittent hot water. In either case, contact customer support .

If this helps, please indicate so.
Mike//jzklipper

Nov 25, 2009 | Rheem Rtg53xn Natural Gas Tankless Water...

1 Answer

My Rheem Pronto model#RTG-74PNV-1 has powered off for some reason unknown, I turned the unit back on and it supplied hot water for approx. 10 minutes before it started flashing a code [C7]on the remote...


Remove power source from the unit. If remote control2.gif is installed; remove cover and lift the control wires on the terminal...can be accomplished from either end.

Restore power and see if unit functions normally.

Contact Paloma/Rheem customer (800-432-8373) support and notify them IF you are getting a code "76" error. Rheem has recently extended the warranty on the "Burner Control Assm."; which is your problem. The C4-C8 portion of the error code, is where the unit stops the ignition process...burner fails to light, or gives you intermittent hot water. In either case, contact customer support2.gif.

If this helps, please indicate so.
Mike//jzklipper@aol.com

Oct 01, 2009 | Rheem RTG-74PVN-2 Natural Gas Pronto Whole...

1 Answer

I keep getting error code c4 76


You are having a communication fault with remote control...........#1...Check remote control wiring for loose or damaged connection. #2-Bypass remote control cable by connecting remote control directly to remote control terminals on PCB. Repalce caable if found to be faulty #3- Repalce remote control and #4- replace the PCB. These are items connected to your problem....it may be anyone of these....Good Luck

Apr 11, 2009 | Rheem Tankless Hot Water Heater...

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