2Packs Patio Heater Thermocouple And Fd4 Dump Switch, 23.5" Longer, Room Heater Product Details Timsec Safety Flame Failure Thermocouple Sensor Tilt Switch Replacement Kit, will help you solve below problems: a. your heater can't be lit even the lighters are fine. b. your heaters thermocouple broken. 23.5" much Longer Thermocouple can be compatible with Most Brand Propane Gas Outdoor Heater, Garden Heater, Room Heater The Replacement Kit is Not universal parts, Please Check Dimensions and Installation way Carefully Before purchasing. Specifications: Item: FD4 Dump Switch Weak Current Tilt Dump Switch for gas R 10 m ohm Current Voltage: 250VAC/15A 125VAC/20A Flat Terminal Width: 0.19", 0.26"(4.8mm,6.5mm). Parts Numbers: FD4. Item: 23.5" Gas Patio Heater Thermocouple Thermocouple Wire Length: 23.5" (600mm) Thermocouple End: M8 x 1 Thread with Nuts on end Thermocouple Probe Diameter: 0.24"/ 0.3" (6mm/7.5mm). Flat Terminal Width: 0.19"(4.8mm) Package Included: 2Pcs x 23.5" Thermocouple 2Pcs x FD4 Dump Switch. [WIDE APPLICATION] - This gas heater Thermocouple and Dump Switch replacement part is suitable for propane, patio and thermoelectric gas heaters with thermoelectric safety room gas heater, outdoor patio heater and other Thermoelectric gas products. [FUNCTIONS] - The FD4 Tip over Switch will automatically stop the heater when the heater is tilted or dropped, which can prevent the occurrence of gas leakage when the fire is extinguished and the gas is still on, which is more secure. [SPECIFICATION] - The FD4 Dump safety Switch is for weak dump switches with gas R ? 10m?. and Thermocouple wire total length 23.5?(600mm) M8*1 Thread Ends and two 0.19"(4.8mm) width Flat Terminal. 23.5" much Longer Thermocouple can be compatible with Most Brand Propane Gas Outdoor Heater, Garden Heater, Room Heater [EASY INSTALLATION] - The probe is connected to the ignition device, the thermocouple is connected to the valve, and the other two ports are connected to the safety dumping switch, which does not require special tools and is fully compatible with the original components. [SATISFACTION GUARANTEE] - We stand by our quality commitment and will guarantee you 100% satisfaction of the Patio Heater Thermocouple and FD4 Dump Switch. Please do not hesitate to contact us if there is any question. We will do our best to solve the problem as soon as possible. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.