**Model Number**- MC17J8000CG

**Brand**- Samsung

**Age**- 1-5 years

Hello all, I have a MC17J8000CG Microwave unit that does not heat. I have tested the following:

All 3 door switches appear to work properly

All of the temperature safety switches appear to be okay (all low impedance)

The capacitor appears okay, as it appears as open circuit

Magnetron appears okay; The terminals measure low impedance between them, but are both open to the chassis.

Diode appears to work okay, current only flows one way

The HV Transformer primary measures less than 1 ohm, but the secondary measures 138 to 139 ohms.

This is where the problem lies. The literature statues the transformer secondary should measure 131 +- 2% which means a max of 133.62 ohms. This means, technically, a measurement of 138 to 139 ohms is out of spec, ,but just barely. Should I replace the transformer or continue looking for other problems within the unit?

Thanks!

All 3 door switches appear to work properly

All of the temperature safety switches appear to be okay (all low impedance)

The capacitor appears okay, as it appears as open circuit

Magnetron appears okay; The terminals measure low impedance between them, but are both open to the chassis.

Diode appears to work okay, current only flows one way

The HV Transformer primary measures less than 1 ohm, but the secondary measures 138 to 139 ohms.

This is where the problem lies. The literature statues the transformer secondary should measure 131 +- 2% which means a max of 133.62 ohms. This means, technically, a measurement of 138 to 139 ohms is out of spec, ,but just barely. Should I replace the transformer or continue looking for other problems within the unit?

Thanks!