Ok Merc issues

[spareparts]

alarm circut is tan with a blue stripe, just ground the tan/blue wire with the key on and it should sound the alarm. Tan wire is for the guage. If you have the time, replace the alarm sensor in the head, make sure you clean out the hole it came out of, you never know just how old that sensor is. You can check the sensor with an ohm meter and a pot of hot water on the stove, just hook the ohm meter leads to each wire, put the meter on Ohm or diode check, drop it int hte water making sure the wires don't touch or come in contact with anything that will conduct, turn the stove on adn wait for the connection to be mae, check the temp with a thermometer