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since there is no model, serial, or manufacturer listed, let's look at generic process. When call for heat, there are usually a few processes, like a combustion fan and a proving switch that the fan is working. Once that is satisfied, a current is sent to the glow plug to cause it to heat. This is when you check for the correct amount of power being sent to it. And it is providing that the proving process is complete. If there is current and no heat, check the amp draw (if you have the meter to do so.) If no amp draw or if you do not have a meter that measures amps, this would be the time to Kill power to the unit, unplug or disconnect the wires to the glow plug and check for continuity or ohms resistance. If resistance is present, you need to know what is the proper amount to have. Trane usually has about 80-100 ohms on their commercial roof top units. If there is no resistance or continuity, the glow plug is bad and needs replaced.

Heating &... | Answered 4 minutes ago

How do you change batteries in the Chuck and friends talking dump truck.

Hasbro Playskool... | Answered 8 minutes ago links explain your code and options for repair

Office Equipment... | Answered 11 minutes ago

There is an IC inside the set that is suppose to control the volume and maintain the level it is set to and not let it get to high on commercials or to low in love scenes.this IC has gone bad, common problem in Emerson. IC isn't very expensive, although sometimes it's in with other things on a 64 pin IC. Little tiring desoldering and soldering it back in.

Emerson... | Answered 18 minutes ago

check fuse and relay if good then need to test for either failing sensor or hub

Cars & Trucks | Answered 29 minutes ago

What brand name are we working on?

Mounted Memories... | Answered 38 minutes ago

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