October 2010 HP50 Comfort Solution Dear Customer, Rheem Water

Rheem Water Heaters Customer Care Center
1241 Carwood Court  MONTGOMERY, AL 36117  Phone (334) 450-2000
October 2010
HP50 Comfort Solution
Dear Customer,
Rheem Water Heating plans to offer a free upgrade to Customers who purchased our initial
models of heat pump water heaters (inclusive of the following brands: Rheem, Ruud, Richmond
or EcoSense). The existing control system will be upgraded to the latest technology we have in
production today. This upgrade will provide more available hot water to the user when the heat
pump water heater is operating in Energy Saver mode. We will also perform a complimentary
system verification check including compressor performance and refrigerant charge level.
With reference to the figure below and specifically the four numbers
within the serial number. The second two digits represent the year of manufacture of the unit.
The first two digits are the week of that year of manufacture. Therefore, this example says that
this product was manufactured the 32nd week of 2009.
If you have a heat pump water heater manufactured after 3510 (September 1, 2010), the
technology upgrade has been made and no action is necessary.
Name of product: Heat Pump Water Heater HP50
Manufacturer: Rheem Manufacturing Company
Brands: Rheem, Ruud, Richmond, EcoSense
The picture to the left shows a sample portion of your
rating plate. In your serial number, if the four digit
number after the letter “N” is between 3209 – 5009 or
0210 - 3510, then your water heater is eligible for this
Eligible Product Serial Numbers: 3209-5009 or 0210-3510
Action: Complimentary control board replacement, compressor check, and charge verification.
Consumer Contact: If you believe that you’re eligible for this field upgrade, please call Rheem
toll-free at 800-995-0982 from 8:00 a.m. to 5:00 p.m. Central Time, Monday through Friday.
Please have the serial number of your water heater ready when you contact Rheem.
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