LG Electronics LMV1825SBQ, MV1825SW service manual Check the contact of relay 2see Normal

PROBLEM - E: Unit does not heat up even if display counts down when START key is touched for HIGH POWER cooking.

1

Check: 1. PRIMARY AND SECONDARY INTERLOCK SWITCHES 2. THERMOSTAT

	NO	Replace
continuity		circuit board

Check the contact of relay 2(see page 7-18)

Normal			Runs
circuit board
Poor contact	Correct	Normal	Runs
	seating	contact

7-23

Contact	Check contact of
	connector S1
OK

Runs

Contact OK	Replace	Normal
	circuit board	circuit board

2

					Runs
Resistance	Replace H.V.T.	Normal H.V.T.
incorrect
		Resistance	Replace H.V.C.	Normal H.V.C.	Runs
		incorrect

Measure resistance of H.V.Transformer (see page 7-15)

Normal	Check the continuity of	Abnormal	Replace H.V.D.	Normal
resistance	H.V.C. (see page 7-16)				Runs
				H.V.D.

Normal	Check the
resistance	continuity of H.V.D.
	(see page 7-16)

Normal	Replace	Normal	Runs
	Magnetron	Magnetron