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CPSC, Viessmann Manufacturing Company (U.S.) Inc., Announce Recall of SR-RN-2 and SR-RN2R Boiler Control

Reported: March 13, 2002 Initiated: March 13, 2002 #02524

Product Description

The recalled units, which are installed in Atola-RN Boilers, 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.)

Reason for Recall

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.

Remedy

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.

Details

Units Affected
190
Official Source
https://www.cpsc.gov/Recalls/2002/CPSC-Viessmann-Manufacturing-Company-US-Inc-Announce-Recall-of-SR-RN-2-and-SR-RN2R-Boiler-Control-

Frequently Asked Questions

What product was recalled? ▼
The recalled units, which are installed in Atola-RN Boilers, 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.). Recalled by Viessmann Manufacturing Company (U.S.), of Warwick, R.I.. Units affected: 190.
Why was this product recalled? ▼
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.
What should consumers do? ▼
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.
Which agency issued this recall? ▼
This recall was issued by the CPSC on March 13, 2002. Severity: Moderate. Recall number: 02524.

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