pfe999
Premium Member
- Model Number
- GMC305PRB
- Brand
- Whirlpool
- Age
- 6-10 years
The microwave of my GMC305PRB01 blew the 15AMP fuse (a 20AMP MDA was actually installed from factory).
While replacing the fuse and noticed the red lead to HV transformer had come lose and touched the transformer case. I suspected this might be way the fuse blew. I reconnected the lead. Turned power back on. Everything works except microwave doesn't heat.
Checked all the micro switches and thermal fuse for continuity. All appear to be ok. Did OHM check HV capacitors appear to be ok. Did OHM check on the magnetron, appears to be ok.
Ordered new HV transformer and diode. Installed new parts - still no heat.
Checked main filter, it appears to be ok. I couldn't get the leads of though so I have to measure with lines connected.
I running out of options. Anybody have any suggestions?
Thanks
Pat
While replacing the fuse and noticed the red lead to HV transformer had come lose and touched the transformer case. I suspected this might be way the fuse blew. I reconnected the lead. Turned power back on. Everything works except microwave doesn't heat.
Checked all the micro switches and thermal fuse for continuity. All appear to be ok. Did OHM check HV capacitors appear to be ok. Did OHM check on the magnetron, appears to be ok.
Ordered new HV transformer and diode. Installed new parts - still no heat.
Checked main filter, it appears to be ok. I couldn't get the leads of though so I have to measure with lines connected.
I running out of options. Anybody have any suggestions?
Thanks
Pat