Wholesale Distributor Replacement Program

TO: ALL WHOLESALE DISTRIBUTORS

SUBJECT: VENT DAMPER REPLACEMENT PROCEDURE

Some Effikal brand vent dampers (involving all sizes) that were manufactured between July 1, 2007 and March 1, 2008 have developed cracks on the plastic ears connecting the motor assembly to the mounting bracket.  If both ears break, the motor assembly could disconnect from the bracket.  If this occurs, the boiler may light with the vent damper in the closed or partially closed position.   

This replacement program involves Effikal brand PC vent dampers only
The Effikal motor assemblies affected have black plastic bases and black plastic caps.

The vent damper must be within the serial number range OR date code as listed in the chart below.

Affected Vent Damper Date Codes and Serial Numbers:

Manufacturer Atmospheric Gas Boilers Vent Damper Date Codes Vent Damper
Serial Numbers
Allied Engineering MG, MS and SG series 0728-0809 3588428-3687571
Burnham Series 2b, Series 8h, and Independence
except Independence PV
0728 – 0738 3588428- 3647820
Crown AWI, CWI and BSI series 0728-0809 3588428-3687571
Hydro Therm R/MR, VGA, VS and HW series 0728-0809 3588428-3687571
Laars JV series 0728-0809 3588428-3687571
Lochinvar CBN Solution series 0728-0809 3588428-3687571
RBI Spectrum series 0728-0809 3588428-3687571
Smith GB and HW series 0728-0809 3588428-3687571
New Yorker CG and CGS series 0728 – 0738 3588428- 3647827
Peerless MI, 63 and GM series 0728-0809 3588428-3687571
Raypak Series XV-42–180, Series V-181–260
and 182–261, Series VII-133
0728-0809 3588428-3687571
Union Steam GWA and GSA series 0728-0809 3588428-3687571
Weil-McLain CGa, EG, and PFG series 0728 – 0738 3538074-3647830
Williamson-Term. GWA and GSA series 0728 – 0738 3538074-3647830


For affected vent dampers still in inventory at a wholesale distributor, please:

  1. Identify all gas boilers in your inventory from the list above which contains vent dampers.
  2. Set aside all the vent dampers that are within the serial number range OR date code range listed in the table.
  3. Call Customer Service at 1-252-522-3031 for a Return Goods Authorization number (RGA#) and shipping instructions.  Once Effikal receives the RGA shipment, we will expedite an identical replacement shipment back to you.

For affected vent dampers sold to contractors, please:

  1. Wholesalers, place a stocking order for RMA-AL replacement motor assemblies from Effikal, Effikal Part #70009000.
  2. Notify all installers who purchased gas boilers from the
    manufacturers above.  
  3. Advise installers of the Vent Damper Replacement Procedure, found at this website by clicking here effikal.com/contractor.

In cooperation with the U.S. Consumer Product Safety Commission.


Effikal LLC. • 2630 Airport Road • Kinston, NC 28504 • Phone: 252.208.7324 Fax: 252.522.0214