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Mercury Flame Sensor ( 2-Spade Terminal and 1 Round Pin) * OBSOLETE - SEE DETAILS TO UPGRADE YOUR SY

Price: $167.76
Excl. Shipping
SKU: FLS3049115
(See Product Details Below for Manufacturers Part Numbers)
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* OBSOLETE - See Related Products Below to UPGRADE YOUR SYSTEM

White Rodgers Mercury Flame Sensor ( 2-Spade Terminal and 1 Round Pin).

White Rodgers Flame Sensor Mercury Switch inserts next to pilot found on many brands of heating equipment.
Capillary (Sensing Bulb) comes in various lengths.
When ordering make sure number of spades and Pin Terminals Match 2 - 5 match when ordering new mercury switch.
Capillary Length: 48" Rating @ 120VAC: 125VA Rating @ 240VAC: 125VA Rating @ 30VAC: 90VA Size: Flame Sensor Mercury Switch inserts next to pilot found on many brands of heating equipment.
Capillary Length: 48".

This White Rodgers Flame Sensor replaces these part numbers: 3049-52,3049-54, 3049-55, 3049-66, 3049-68, 3049-106, 3049-107, 3049-111, 3049-112, 3049-114, E2 HH71PD024, 3049-115, CARL37169.


1. Blank
2. Round Pin
3. Male Spade
4. Male Spade


The mercury flame sensor is a mechanical device that proves the existence of an acceptable pilot flame. It converts the heat of a pilot flame to motion which is used to open and close a set of electrical contacts, and consists of a bulb, capillary, diaphram, snap-switch mechanism, and mercury-filled bulb. When the bulb is heated by a pilot flame, the mercury is vaporized causing pressure in the capillary and diaphram. Movement of the diaphram causes the snap-switch to open one set of contacts and close a second set. These contacts control the pilot and the main valve.

I called trying to find out what happened to the rest of my order and was surprised to hear a warm and kind voice willing to do whatever it takes to find answers and follow through with her promise. Amanda is an asset worth holding on to and a credit to your company. She was very professional, helpful and courteous while assisting me with my order. I would most definitely assign her an A+ in customer service."
Donald "Brad" Thomas

I would like to thank you for your hard work in getting us our part in a timely fashion. You were very helpful and you understood the severity of the situation and did a wonderful job in getting the part to us. Thanks again and please share this with your boss! You were outstanding!"
Todd Mills

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