Question about Rheem 81VP15S Point-of-Use Electric Water Heater, 15 Gallon, 120v

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Condenser fan wont come on nor will compressor I do have fan op

My rheem heat pump wont pull on compressor or condensing fan I have  fan @ air handler

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Thanks for your Question,
First thing to check is the breaker in the panel to see if its tripped, I would suggest turning to off, then back to on, if it trips right after you have a short, if not you will need to check your fuses at the disconnect, first, shut the breaker off to the condensor, then pull the fuses and Ohm check them, if you have no reading then one or both is bad, I would recommend replacing them both if thats the case, if they check good, then you have bigger issues with your heat pump, if these suggestions do not work let me know and I can go into more indepth proceedures with you on what to do, thanks again,
mr.grzz

Posted on Jan 25, 2009

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I have a problem with a Rheem Power Vent Water Heater shutting down due to condensation build up.


if it,s condensation....let it sit out side in sun to dry out well then bring it in start it and with a flash light look for leaks

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What is problem when fan motor on outdoor unit gets very hot and compressor will not restart?


Ur compressor depends on fan motor of ur condenser. Ur compressor undergoes Hi-pressure because ur fan not working properly

Sep 06, 2014 | Rheem Air Handler 3 Ton With RBHP Series

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Disconnected condensation drain on hot water heater.


Tankless or hybrid water heater?

Tankless gas must have special fitting between water heater and vent that has a condensate line fitting. Hot toxic vent gasses traveling up vent pipe cause acidic water vapor to form inside vent pipe that drips back down vent and drips onto heat exchanger and other parts eventually burning hole through expensive metal alloy heat exchanger, rendering tankless computer water heater useless after electric circuitry gets wet and shorts out.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html#vent

Hybrid or heat pump type computer water heaters must have condensate drain connected to catch pan located just above storage tank and below compressor. Condensation can form on condenser coils and drip into catch pan where there is primary and secondary drain
http://waterheatertimer.org/Review-GE-Heat-Pump-water-heater.html#maintenance

Read product manual
Gene
h

Apr 17, 2014 | Water Heaters

1 Answer

No condensate coming out of the condensate drain just blows out air


Call Rheem and they will recommend calling installer since tankless computers are non intended as do-it-yourself.
If condensate drain is blowing out 'air' do not forget this air is deadly poison CO gas and will kill you, first giving you a headache that goes away when you are out of house. Remove affected people from home and put into fresh air and lay on side, never on back or they will suffocate. Call 911 immediately and most will recover.
Copy following link for resources and required maintenance for tankless computers that heat water: scroll down to venting and manuals and review each to check how vent lines are set up, and that condensate line is set correctly. However this information is NOT guaranteed to match each model made by Rheem as they advance their product marketing strategy to exclude as much safety information as possible for do-it-yourselfers.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html
Condensate lines can clog over time. Clean line with compressed air, and soak in clorox, and swing around overhead to remove anything inside line. This line contains bacteria so do it in neighbor's yard.
Not all conditions produce vent condensate. Condensate might not form in vent line if weather is dry and the vent has good draft. But later when conditions change, condensate might begin flowing.
Condensate is caused from burning hydrocarbon fossil fuels in any gas appliance. But problem is bigger with tankless since these appliance consume so much fuel per heating event since tankless are required to heat water rapidly as water passes by in a pipe. This is why tankless require larger incoming gas line, and larger vent line made from specific materials for the vent.
Among the long list of poisonous by-products being vented outdoors into the air our planet breathes is acidic water vapor. If conditions are such that the vapor condenses before reaching outdoor, then the acidic water gathers in the vent line and rolls back toward the tankless computer, and goes down into the condensate drain and then down into your pluming drain where it can corrode pipes and add acid by-product to other environments.
If the acidic water is allowed to fall back into tankless heat exchanger instead of down condensate drain, then eventually it will chew a hole through the special nickle alloy heat exchanger (imagine the hole it will chew through household drain lines), and the surprise will not be evident for a few years until leak develops and the tankless exchanger must be replaced at great expense, plus repairs to shorted motherboard and electrical sensors.
Just don't install tankless computer water heater is best solution for myriad of problems, maintenance, and expense of owning a device that must immediately monitor incoming and outgoing water temperatures and flow rates, incoming gas flow rate and pressure, outgoing vent flow and pressure, interact with a remote control device, while monitoring burn rates and combustion temperature using a computer motherboard that is not protected from line interference or power surge, etc
Just install tank-type heater:
http://waterheatertimer.org/How-to-install-gas-water-heater.html
Gene
hh

Aug 18, 2013 | Rheem RTGH-84DVP Condensing Tankless Water...

1 Answer

Where is the drain pan located?


Sometimes there is no condensate.
Sometimes the drain line is clogged.
Copy following links for GE Heat Pump water heater.
http://waterheatertimer.org/Review-GE-Heat-Pump-water-heater.html
Expanded drawing of 2012 GE heat pump condensation drain reservoir
http://waterheatertimer.org/images/GE-condensate-drain-560.jpg
Clean the drain line by swinging over head.
http://waterheatertimer.org/images/Black-Bud-tubing-350.jpg

Sep 11, 2012 | Water Heaters

2 Answers

Rheem water heater rtg95dvn keeps blowing 3 amp fuses


Not for sure what your root cause was and I know it's a little late but I just suffered this same exact scenario on the same water heater. Storms came through, power went out, power came back on and the water heater keeps blowing the 3 amp fuses now. I removed all the cables and plugged them back in one at a time. When I plugged in the Fan Motor connector the fuses blew. Installed new fuses with the connector out, the Fan Motor was putting out 150 VDC through the connector port (on main control). I pulled the control from the unit and Q1 is visible blown and disintegrated on the control board. Obvious control design issue. I've ordered a new control and will put a surge protector on the heater now when the new control comes in. Very disappointed that this was not caught in controls testing within the manufacturers facility. New control is not very cheap. Half the cost of a new Heater. Hopefully the Fan Motor survived the high voltage with the fuses blowing. I'm putting this here for anyone else that suffers the same issue on this water heater or the Richmond equivalents as they use the same control.
rheem-water-heater-rtg95dvn-keeps-lig2cnfgd44b3pejpipwueov-2-0.jpg

Jul 31, 2012 | Rheem Tankless Hot Water Heater...

1 Answer

Every time it rains our instantanious hot water system comes up with error C9 and C12


Before calling service technician, open following link for Rheem troubleshooting resources including contact and chat and typical manuals:
http://waterheatertimer.org/pdf/ErrorcodeTroubleshooting.pdf
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

Error codes are start points for troubleshooting and can include long list of things including multiple causes.
Error code 12 shows 'condensation collar' and 'vent lengths' which are associated with the vent to outdoors. Changes in air pressure during low-pressure rain events MIGHT affect the venting and cause tankless not to ignite, and MIGHT cause excessive condensation. Improper condensation can rust out the heat exchanger without showing any signs of problem until the unit is ruined.
C9 is not listed. Contact Rheem, and then add a comment saying what Rheem suggests as solution for C9 error. This will help others in the community with same-similar problem.

Instruction manual recommends yearly maintenance by qualified service technician.
This maintenance would usually check all things shown in error 12.

Jul 18, 2011 | Rheem Tankless Hot Water Heater...

1 Answer

Rheem tanless waterheater cuts of with error code c4 then 13.


Air intake of the unit and or vent termination may be blocked. If the heater worked for that long without a condensate tee. The heat exchanger could be pluged . I would have heater cleaned and have them check out heat exchanger.If you want to take flue pipe off of the top of water heater you can take a flashlight and look down at heat exchanger to see if it is pluged take front panel off first also turn power off if you decide to do this. If you need any help let me know

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