Frequently Asked Questions

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Q. Why is Sure Signal Products conducting this recall?
A. We are conducting the recall to ensure our customers are well protected, and to remove potentially problem fuses from the field.

Q. How do I know if my unit is affected by the Heat-Activated Fire Alarm recall?
A. Unsnap the fuse (round, white or chrome in color) located on the middle on the front face of the alarm. Locate the temperature rating on the small white label on the back of the sensor. If either “117°F” or “136°F” is shown, and the date code reads 01001 – 15182 the sensor is part of the recall.

Q. How do I take advantage of the free fuse replacement offer?
A. You have a couple of options: For the fastest response, register on our website at or you can call our toll free number at (855) 202-3083 between 8:00 am to 5:00 pm PT Monday through Friday.

Q. What is the problem with my fuse?
A. Over a period of several years, some fuses are losing their ability to react at their rated temperature. This could cause a failure to activate if there were a fire.

Q. Should I reinstall the alarm after I’ve taken it down to check the model number and temperature ratings?
A. Yes, if it is not too difficult to do so. Even though new fuses will be shipped to you shortly, it is best to leave the alarm and current fuse in place until that time.

Q. I can no longer find the receipt or sales paperwork for the alarms, can I still receive free replacement fuses?
A. Yes, just let us know the “Date Code” and the “Temperature Rating” (both located on the label on the back of the sensor) and we will mail you replacements.

Q. How long will it take for me to receive the replacement fuses?
A. Please allow 2 to 4 weeks from the date you contacted us. We are sorry for any inconvenience, and be assured we are working as quickly as possible to get you the replacement fuses.

Q. Who is Sure Signal Products? I purchased my equipment from “…company”
A. Sure Signal Products is the company that designed and manufactured the alarms and fuses. We are a small company in Southern California that specializes in mechanical fire alarms.

Q. When I removed my fuse from the front face of the alarm, the alarm started to ring. How do I stop it?
A. Without the fuse in place, the alarm is free to ring out. After five minutes the ringing will stop. To install the replacement fuse, simply wind the alarm back up with the “Z” shaped key snapped into the back. After 38 turns, the sensor can be re-snapped firmly back into place. However, if you insert and hold the winding key BEFORE removing the fuse, the alarm will not unwind.

Q. How do I know what is the proper fuse temperature for the alarm’s location?
A. Generally this is determined by the space the alarm is located. If the alarm is in an attic, the best fuse temperature is usually 175°F. If it’s in a crawlspace, utility closet or garage then 136°F is typically used. In a kitchen or living space in the house, 117°F is appropriate.

Q. How do I remove/replace the fuses?
A. The easiest way to learn how to replace the sensor is to watch the video found on our website. Click the “CPSC Heat Sensor Recall” button on our website There will also be an easy to follow, step-by-step pictorial instruction sheet included with the mailing of the replacement fuses.

Q. I am elderly and/or have health issues. I don’t feel confident that I can remove the alarm and replace the fuse myself. What can I do?
A. If you don’t feel that you can safely replace the fuse on your own, and don’t have a friend or relative who can assist, we will make every effort to try to send a representative to your home to make the replacement.

Q. The CPSC Press Release states that you are recalling the Heat-Activated Fire Alarm. Why are you only offering a replacement fuse?
A. The remedy to the product recall is the replacement of the fuse, which has been approved by the CPSC. The main alarm units are working fine. Only the fuses are not working properly.