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Boiler Panel
The controls have an electronic relay that may fail in a manner that will allow the burner to operate and by-pass the interlock with the flue damper. The interlock assures proper operation of the damper for removal of combustion gases. If the interlock fails, excess carbon monoxide emissions may occur.
Ms. Ulli Hiltz, the Viessmann Manufacturing Company contact, can be reached at 888-843-2772 between 8:30am and 5:00 pm ET Monday through Friday.
Recall Details
Viessmann Manufacturing Company (U.S.) of Warwick, R.I. is recalling 190 SR-RN2 or SR-RN2R controls, which are installed in Atola-RN Boilers. The recalled units were manufactured between December 1998 and December 2001. This is the entire production of these controls. (The controls do not have a date code that can be seen by consumers.)
Consumers who have one of these boilers should contact their local distributor or Ms. Ulli Hiltz, the Viessmann Manufacturing Company contact. Viessmann Manufacturing Company will install a wiring module in suspect boilers which will put a redundant switch in series with the switch that may erroneously close and by-pass the safety interlock with flue damper.
Viessmann Manufacturing Company has contacted distributors and wholesalers and made arrangements for them to contact customers and make arrangements to retrofit the Atola-RN Boilers with SR-RN2 or SR-RN2R Controls.
No injuries have been reported.
Note: Individual Commissioners may have statements related to this topic. Please visit www.cpsc.gov/commissioners to search for statements related to this or other topics.
Related Recalls
The recalled area rugs violate the mandatory federal flammability regulations for carpets and rugs, posing a fire hazard.
The steamers can expel, spray, or leak hot water during use, posing a burn hazard to consumers.
The recalled fog liquid can expire sooner than the expiration date listed on the product. This can pose a risk of respiratory or other infections in individuals with compromised immune systems, damaged lungs or an allergy to mold.
The blocked vent switch (BVS) can fail to shut down the burners if the boilers are installed at altitudes above 2,000 feet and the vent system becomes blocked. In such an event, the boiler can emit excessive amounts of carbon monoxide into the building, posing a carbon monoxide (CO) poisoning hazard to consumers.
The blocked vent switch (BVS) can fail to shut down the burners if the boilers are installed at altitudes above 5,400 feet and the vent system becomes blocked. In such an event, the boiler can emit excessive amounts of carbon monoxide into the home, posing a carbon monoxide (CO) poisoning hazard to consumers.
The sounders and strobes can malfunction and cause the fire alarm system to fail to alert consumers of a fire.
The U.S. Consumer Product Safety Commission (CPSC) is charged with protecting the public from unreasonable risk of injury or death associated with the use of thousands of types of consumer products. Deaths, injuries, and property damage from consumer product-related incidents cost the nation more than $1 trillion annually. CPSC's work to ensure the safety of consumer products has contributed to a decline in the rate of injuries associated with consumer products over the past 50 years.
Federal law prohibits any person from selling products subject to a Commission ordered recall or a voluntary recall undertaken in consultation with the CPSC.
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