Question

A reading across terminals 1 and 2 on the LIM shows 120 volts. Another reading across terminals 1 and 2 on FS shows 120 volts. what could be a possible problem with the system?

a. The FS is defective.
b. The orange and white wires
c. The stack mount relay is defective
d. The burner motor could be defective

Answer 1

The most likely problem is either a defective stack mount relay or a defective burner motor.

Step-by-step explanation:

The fact that both the LIM (Load Isolation Module) and the FS (Fuel Safety Switch) are showing the same reading of 120 volts suggests that the problem is not with either of these two components. If the FS was defective, the reading across its terminals would be different from the LIM reading. Similarly, if the orange and white wires were faulty, the readings would also be different. The most likely problem is either a defective stack mount relay or a defective burner motor. These components should be further tested to determine the exact issue.