Service bulletin 167-B1203-12

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

NHTSA's summary

SB-12-002 Flame Temperature Sensor Replacement Guidelines. 2. CONDITION: Many Flame Temperature Sensors are being replaced for burner failure (as shown below) but in many cases the sensor itself is not the issue. Please follow the guidelines in this bulletin to determine whether the sensor should be replaced. For example, in the case of the flame temperature indicating 0° Celsius on the burner monitor screen, as shown in the sample data below, or indicated as above 4000° Celsius in the event log (except at the ignition or misfire event) it is not a malfunction of the sensor but is just a temporary misrecognition of the sensor. It does not cause the burner to fail.

The document

• NHTSA's copy of the document (PDF)
• If that address does not open, try this one

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Ignition

Listing a model year does not mean every vehicle of it is concerned: the document says which.

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