UPDATE: Sticking TXVs on 2 and 2-1/2 Ton Split System Evaporator Coils and 15 SEER Package Unitsby HVAC Distributors February 11, 2015
Goodman has revised the serial number date range for Service Bulletin SA-023.
Update From Goodman:
Recently we have received reports of sticking or restricted TXVs (thermostatic expansion valves) on AC and HP product in the 2 and 2-1/2 ton capacity range. Analysis of returned parts shows dark sticky deposits on the pin and the body that are preventing the valve from functioning properly.
Chemical analysis suggests this material is, in part, chemically degraded POE oil and that the TXV is not the root cause of the problem. Goodman has found the issue to be a change to a rust inhibitor used by a vendor. The vendor has returned to the original rust inhibitor and this has corrected this issue. Any units produced with the serial date range of 1411 or later will not have this issue.
In cases where the TXV has been determined to be sticking causing high superheat and low suction pressures measured at the outdoor unit. We recommend conducting a complete service check to eliminate refrigerant charge, static pressure, air flow, and improper system matchup as a possible cause of this failure.
For any 2 and 2-1/2 ton systems with compressor bearing units produced with serial number prefixes of 1312 thru 1410 that show signs of a sticking TXV and above method does not remedy the issue, Goodman will pay a Class “G” labor rate to replace the TXV and filter drier during the first year of operation based on date of installation. For Dealers without established extended warranty labor rates, the rate will be based on the standard extended warranty base rate. The correct TXV must be used as defined in the product parts catalog if factory installed or per the specification sheet if this is a field installed accessory TXV. Claims must be filed on Warranty Express as an Authorization type claim, using Authorization Code number 8710. The claim for the part and labor should be filed as one claim, using the Dealer’s account number. Refer to Warranty Express for part returns related to this bulletin.
The claim will be paid upon review by Goodman’s Warranty Department. Warranty Claims will be approved for equipment that is still covered under the terms of Standard Warranty. All claims for this project must be submitted by December 31, 2015. As more information regarding this issue becomes available the qualifying serial range may be modified and will be communicated in an updated bulletin.
Please consult the HVAC Distributors’ Warranty Department if you need assistance with this process.