Apply to be a TradeMaster!
Main product image of UMC-117 Water Heater Controller, RTG20006DW
Magnifying glass
Hover image to zoom

UMC-117 Water Heater Controller, RTG20006DW

Brand:
Rheem
SKU:
RTG20006DW
Rating:
(13)
Q&A:
(0)
UMC-117 Water Heater Controller, RTG20006DW
Magnifying glass
Hover image to zoom
$71.97 each
In Stock
In Stock
Get 2 Tue, Jul 7
Order by today, receive Tuesday
Free Shipping On orders over $99
Easy Returns No restocking fee for 90 days

Description

Rheem RTG20006DW UMC-117 Water Heater Controller
A Rheem UMC-117 main remote control pad used with compatible Rheem tankless water heaters to adjust set temperature and access maintenance/diagnostic information when a wired controller is required.

Key Features
  • UMC-117 main remote-control pad
  • Designed to allow easy temperature adjustment
  • Provides access to maintenance information
  • Supports connecting up to 3 remote controls to the same tankless system
  • Listed as replacing RTG20006EF
  • Rheem notes the UMC-117 remote control operation can be set from 100°F up to a maximum of 140°F

Compatibility & Applications
  • Listed as a Rheem tankless water heater controller
  • Must only be used where the manufacturer specifies this exact part number: RTG20006DW.

Installation & Operation Notes
  • Installation should be performed by a qualified service technician, following the tankless water heater's service/installation manual and any controller instructions.
  • Confirm correct wiring/connection points and mounting location per the water heater documentation before energizing the unit.
  • After installation, verify the controller powers up, communicates properly, and allows temperature adjustment within the manufacturer-stated range.

Maintenance & Troubleshooting
  • This controller is commonly used to view maintenance/diagnostic information and read error codes on the tankless unit.
  • If the unit is not responding to temperature changes or codes cannot be accessed, follow the water heater troubleshooting steps to confirm wiring/connection integrity and proper controller configuration for the specific model.

User Reviews & Q&A Summary
  • Easy install / works as intended: Reviewers frequently describe it as straightforward to install and functioning properly right after install.
  • Needed for temperature control and diagnostics: Common use cases include raising/adjusting temperature and using the controller to read tankless error codes.
  • Replacement of worn controller: Multiple reviews describe replacing an older/worn-out controller and reporting the new one works perfectly.
  • Strong shipping/service experience: Many comments focus on fast delivery, arriving earlier than expected, and smooth ordering/returns experiences.

Contact

+
Help Face

Happy Independence Day!

Our Customer Support will be closed today in honor of Independence Day. We will be back tomorrow to answer your questions.
Call or text 888-757-4774
Special Hours
Closed Now
MondayThursday
8am7:45pm
Friday
9am7:45pm
SaturdaySunday
9am5:45pm


You May Also Need

Product Reviews

5 out of 13 reviews
100% would recommend this product
5
out of 13 Reviews
100% would recommend this product
WRITE A REVIEW
5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%
WRITE A REVIEW
Showing 1-10 of 13 reviews

The service was all one could ask for

My water heater controller arrived days before I expected it and was easy to install. Placing the order was easy, too. In all, the service couldn't have been better.
Peter
Starrucca, PA
2 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Would buy it again

Work properly after installing it. Fast shipping.
Ed
Daly City, CA
2 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

very good company, fast shipping

on demand hot water heater
rick
redding ca
2 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

I would buy this product again

Replaced worn out product. it works perfect.
Cast
Bryan Ohio
3 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Supplier was fast. Part worked perfectly

One day early. Easy install
Sheetsrock
Akron Ohio
3 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Excellent Service

I had to return an order. It was easy and the refund was posted within a few days.
Liv
Lead SD
3 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Good price

Nver had a chance to use this as I found my original one; but I'm sure it would have been fine
the Great Dane
Mars
4 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Water heater Temperature Remote controller

Raise the temp on the water heater.
Bala
NY
4 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Needed the remote to read codes

I have nothing to say bad about the product. It was needed to read the codes on my tankless water heater. The people at Supplyhouse made it so easy for me as I'm not a plumber. Highly recommended
Rip
Hobart In.
6 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Right part

Delivered on time as promised
Steve
Texas
6 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?
Free Shipping
On orders over $99
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Shipping Policy
Easy Returns
Returning items is as simple as 1-2-3
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.
Return Policy