What the bulletin says
Honeywell Technical Bulletin TB22.1SK identifies the WSK-PULL-DA Silent Knight SWIFT pull station as having the potential to generate a premature, erroneous low-battery notification within a few months of installation.
Honeywell says the notification itself is not a safety issue, but also says low-battery warnings should be addressed promptly because system-operation problems could eventually arise if a legitimate battery condition is ignored.
Which units are potentially affected?
The bulletin identifies products with date codes 8xxx, 9xxx, 0xxx, 1xxx, 201x, 202x, and 203x, where “x” can be any number. The bulletin includes a product-label illustration showing where the four-digit date code is located.
Does every affected pull station need replacement?
No. Honeywell's bulletin says SWIFT pull stations that are operating without the low-battery issue do not need to be replaced. Units in the identified date-code range that exhibit a premature low-battery warning are directed through the normal warranty-return process.
What a service technician should do
- Confirm the exact model is WSK-PULL-DA before applying this bulletin.
- Record the device date code and compare it with the ranges identified by Honeywell.
- Do not automatically dismiss a low-battery trouble as false — verify the battery condition and device status.
- If the unit falls within the affected range and appears to be generating the premature warning described by Honeywell, follow the current Silent Knight technical-support / warranty process.
- Document what was found and what action was taken in the service report.
Installed fire alarm equipment can remain in service for decades. A 2022 bulletin can still save troubleshooting time in 2026 when a technician encounters the affected device in the field. It belongs in the reference library — just not presented as brand-new news.
Official sources
Honeywell resource page and bulletin checked September 25, 2026. The underlying technical bulletin is dated July 20, 2022.