Not Yet Classified

This recall has not yet been classified by risk level.

Gas Vent Dampers Recalled by Effikal Due to Carbon Monoxide Hazard

Date: October 9, 2008
Company: Effikal LLC, of Orion, Mich.
Status: Ongoing
Source: CPSC

What You Should Do

Stop using this product immediately. Do not consume, use, or distribute it.

Consumers should immediately stop using the boilers, weather permitting, and contact their installer to confirm they have a recalled vent damper and to receive a free vent damper replacement.

Affected Products

The recall involves Effikal RVGP-PC Gas Vent Damper size 4, 5, 6, 7, 8, 9, or 10 which are installed with the gas boiler systems listed below. The vent damper date code is located on a sticker under the motor assembly cap on the plastic base. Serial numbers are located on a label on the side of the damper's cap. All sizes and models of the RVGP-PC have the same motor assembly with black Effikal caps and black plastic bases. Manufacturer Atmospheric Gas Boiler Models Vent Damper Date Codes Vent Damper Serial Numbers Allied Engineering MG, MS and SG Series 0728 through 0809 3588428 through 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 0728-0809 3588428-3687571 Weil-McLain CGa, EG, and PFG Series 0728-0738 3538074-3647830 WilliamsonThermoflo GWA and GSA s 0728-0738 3538074-3647830

Why Was This Recalled?

The automatic gas vent damper could fail, and if the blocked vent switch does not activate, the vent could leak carbon monoxide (CO). This poses a risk of CO poisoning to consumers.

Where Was This Sold?

Distribution information not available.

About Effikal LLC, of Orion, Mich.

Effikal LLC, of Orion, Mich. has 1 total recall tracked by RecallDetector.

Related Recalls

Data sourced from the CPSC. Last updated March 26, 2026. View original report