September 27, 2019
1-1/2 & 2 Ton RH1T, RF1T, and RBHP 208/230 Volt Constant Torque Air Handlers.
Units Manufactured W1219 through W3019.
Rheem has manufactured a population of 1-1/2 & 2-ton air handlers with 1/3 HP motors (51-106544-(04, 14, 09) that may experience intermittent "no start conditions". This will be more evident in high resistance applications (e.g., high static and high ambient temp). Please be aware that upon arrival of a service technician that the unit may be running due to power being cycled and may be mis-diagnosed due to this.
Symptoms that the technician should look for include:
All 208/230 volt RH1T, RF1T and RBHP 1-1/2 & 2 ton air handlers that fall within this date code range should be inspected and appropriate actions taken to change the motor, if a suspect motor serial number has been identified.
To identify, technicians would be required to:
Note: With any of these three options, the “Motor Verification” tool will verify and provide indication if the motor is one of the suspect serial numbers requiring replacement — see photo below
The motor serial number can also be validated by contacting your local distributor service coordinator.
IMPORTANT: It is highly recommended that all 1-1/2 and 2 ton air handlers that fall within the suspect date codes, which have been sold and installed should be inspected for a suspect motor.
|Model Number||Replacement Programmed Motor Part Number|
NOTE: A Gen 2 motor module will not fit on a Gen 3 motor, the modules are not interchangeable.
All Claims related to this Service Note should have a WCN code of NCT2019-2.
This Service Note expires 12/31/19.
Should there be any question as to the coverage or application of this Service Note, please contact your assigned Distributor Service Coordinator.
We apologize for the inconveniences this has caused to you businesses.
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