Document center 186. What is error U4 1000? - Office Equipment & Supplies

Download the Manual online. There is a Section that is for Diagnostics. I will tell you what the code is and how to replace it. Use the Model Number to get Manual.

According to the 2012 manual, 'the LED display only shows F.'
Bottom page 65. Yet the F temperatures are also shown as C in the manual.
http://waterheatertimer.org/pdf/How-to-set-Rheem-tankless-temperature.pdf
You probably have different model, or older model?.?
Older manual (page 15) shows same temperature range with both F and C, but typical of Rheem, the manual is totally vague about settings and say that qualified tech needed to adjust temps beyond factory default range (with no mention of display showing C) ... which is safeguard since the damg product cannot always heat water fast enough to reach higher set points above 120F.
http://waterheatertimer.org/pdf/TanklessOutdoor_95_84_64X_UC_AP15318.pdf

Call Rheem 800-432-8373 and give your product serial number and model number located on side of unit, and ask them.

Don't forget to keep the product maintained to avoid common error codes.
http://waterheatertimer.org/pdf/Rheem-CondensingTankless-maintenance-2012.pdf

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Dear Sir:

I will try to help you, please be patience and carefully, use basics tools:screwdriver, hex,allen, Dvom.

Troubleshooting: ERR2 - Motor Movement

Since the motor moves when you press speed up, focus on the optic sensor, its wire connections, and the

optic sensor wheel. If all seems well at the sensor, inspect the motor.

Optic Sensor

??? Optic sensor wheel - Make sure that the optic sensor wheel rotates securely, without wobbling, in the

middle of the optic sensor. Realign and tighten if necessary. If optic sensor wheel teeth are missing or

bent, replace the optic sensor wheel.

??? Optic sensor wires - Make sure that wires are inserted securely to the optic sensor and to the drive board.

Check wire continuity.

??? Optic sensor - Turn on unit power. Turn the motor flywheel with your hand. The optic sensor

indicator (LED10, drive board) should light. . If it does not light, and all parts above are

good, replace the optic sensor.

Motor

??? Motor arcing - Does the motor show signs of wear - irregular arcing, carbon dust?

??? Motor brushes - Do brushes show signs of irregular wear - cracks, dents, lines? Replace the

motor brushes.

??? M+ M- Wires - Make sure wires are connected properly.

Other

??? Display main IC - To ensure proper signal processing, press down on the main IC on the display

board, marked U5. .

??? Ribbon cable - Ensure that the ribbon cable is attached at the drive and display boards. Check cable
continuity.

If you need additional help, please reach me.

sincerely. God bless you.

E.CUADR
MANAGUA, NICARAGUA

You will need Adobe Acrobat Reader to view these documents. The Adobe Acrobat Reader is available as a free download. Get Adobe Acrobat Reader Click Here=> KUWA244PBS Parts List
and here=> KUWA244PBS User and Care Guide
If you should need the service manual you will need to cant me here=> HERE Reason is Whirlpool does not allow me to publish the SM here.

The beverage center and wine cellars have a temperature display for each zone. 12 volts

AC is supplied to the display board from a transformer in the unit compartment. The displays are only temperature displays and have nothing to do with any cooling function. A thermistor is used to sense temperature for each zone. The thermistor for the bottom zone is located inside the lower portion of the separator. The thermistor for the top zone on the wine cellar, (mid zone on beverage

center), is located in the upper portion of the separator. The thermistor for the beverage center upper zone is located on the inside of the 2-piece evaporator cover. It is on the right-hand side.

The mid temperature for the bottom zones on either unit are 60? Fahrenheit plus or minus 5 degrees. The mid temperature for the mid zone on the beverage center and the top zone

on the wine cellar is 45? Fahrenheit plus or minus 5 degrees. The mid temperature for the

top zone on the beverage center is 38? Fahrenheit plus or minus 5 degrees. I think at tis time you should check each section with a pocket size digital thermometer to cofirm tha the mechanical thermostat is within calibration. Click Here=> 4344690 Temperature Control

Click here for a=> KUWA244PBS Beverage Center Wiring Diagram
I believe the problem may be in the PCB transformer shown at the bottom right corner of the wiring diagram. It is possible o change the transformer but I have not been able to find the board that powers the LED temperature readouts. If needed let me know and I will call Whirlpool mfor you, Thanks, Sea Breeze

Hello!
The question is: What did you change last 26º???
1º- Did you change the SMTP server??
2º- Did you change the Authentication (user name and passw)???

This is only same tips that could help you.

If you have any doubt you can reply to me. I will be gald to help you

CPU º Socket 478 for latest Intel Pentium 4 / Celeron processor
º FSB 533/400 MHz
º Support Hyper-Threading Technology CPU
CHIPSET º VIA® P4M266A & VT8235
º North Bridge: VIA® P4M266A
º South Bridge: VIA® VT8235
GRAPHICS º Integrated S3 ProSavage8 2D/3D Graphics
º Share Memory : 8/16/32MB
MEMORY º 2 x 184-pin DDR DIMM socket support up to 2 GB
º Support DDR266/200 DDR SDRAM
Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows® 32-bit OS.
For Windows® 64-bit OS with 64-bit CPU, there is no such limitation
EXPANSION SLOT º 1 x AGP 4X slot
º 3 x PCI slots
º 1 x CNR slot
STORAGE º Support by VIA® VT8235
• 4 x Ultra DMA133/100/66 devices
AUDIO º Realtek ALC655 6-Channel audio CODEC
º Compliant with AC'97 2.3 specification
LAN º VIA® VT6103 10/100 Mbps Fast Ethernet PHY
REAR PANEL I/O º 1 x PS/2 keyboard & PS/2 mouse connectors
º 4 x USB ports
º 1 x RJ45 LAN connector
º 1 x VGA port
º 1 x Parallel port (LPT)
º 1 x Serial port (COM1)
º 1 x Audio port (Line-in, Line-out, Mic-in)
INTERNAL I/O CONNECTORS & HEADERS º 1 x 20-pin ATX Power Supply Connector & 4-pin 12V Connector
º 1 x FDD connector supports one 360K~2.88MB FDD
º 2 x IDE connectors
º 1 x IrDA for SIR header
º 1 x SPDIF out header
º 1 x USB 2.0 header support additional 2 USB ports
º 1 x Front panel switch/LED header
º 1 x Front panel audio header
º CD in/ AUX in headers
º CPUFAN/CASFAN connectors
SYSTEM BIOS º Award BIOS with 2Mb Flash ROM
º Supports Plug and Play 1.0A, APM 1.2, Multi Boot, DMI
º Supports ACPI revision 1.0 specification
FORM FACTOR & LAYERS º Micro-ATX Size (244mm*244mm), 4 Layers
for more detail look at this site
http://www.ecs.com.tw/ECSWebSite/Product/Product_Detail.aspx?DetailID=436&CategoryID=1&MenuID=18&LanID=19
i hope this helpful
thank you for using fixya

Hi; Receiving to Memory Temporarily You can enable memory receiving feature temporarily. Received faxes will not be printed automatically.

1. Press [ON/OFF] to select <AUTO PRINT OFF>.
2. ??? The fax starts receiving documents in memory.
3. ??? To cancel, press [ON/OFF] again.
4. ??? When <AUTO PRINT OFF> is cancelled, received faxes will be printed automatically.

good luck

Factory timing for all 90-93 normally aspirated Celicas (ST, GT, and GT-S) is 10º before top dead center (BTDC). This means when the crankshaft angle of the number one cylinder reaches 10º, the spark plug will fire. It fires before it reaches top dead center (TDC) because the flame front takes time to fully combust and push the piston downward. this site might help u .http://www.toyotacelicaonline.com/timing.htm

Hate to say it, but it means "Don't buy HP printers". You'll be a whole lot happier with Canon or Epson. I had no end of trouble with more than HP all-in-one. They just get flaky after awhile, and the software (particularly scanning) is terrible.

Press combines Copy 4 pages in two faces OK and reestablishes the zoom lens to the 100%. press star 1º page 2º page 3º page and (4º page in blank.
They will appear two in front page and one in the back. There is no another form