gliderpilot47
23-10-2008, 03:46 PM
I hope there is someone out there that has experience with MFI domestic refrigerators.
I had an engineer sent to look at an MFI 6855 which had a defrost problem. He decided the problem stemmed from the main pcb which was replaced. 3 weeks later we got a call from the customer saying they were having the same problem. I went out and defrosted the coil and checked some of the components myself. In the coil compartment there are two black (what I think are fusible links). Both of these, when tested showed continuity. The defrost heater was not open, but read about 500 ohms. There is a white (I believe to be thermister) sitting above the coil. What kind of reading should I get from this???. Also looking at the picture parts breakdown, there appears to be a rear mounted pcb. Does this pcb control the defrost cycle?
I am grasping at straws. The next vist will either be to refund the customer for the moneys already spent or fix the problem. MFI is no help. Europarts can only get their hands on a limited number of the defrost components. Knowing what I have mentioned, can anyone shed some light on this. We have one more chance at correcting the problem. I'm thinking rear pcb. The thermister is not available. Help!!!
Thanks in advance
david.vinyard@btconnect.com
I had an engineer sent to look at an MFI 6855 which had a defrost problem. He decided the problem stemmed from the main pcb which was replaced. 3 weeks later we got a call from the customer saying they were having the same problem. I went out and defrosted the coil and checked some of the components myself. In the coil compartment there are two black (what I think are fusible links). Both of these, when tested showed continuity. The defrost heater was not open, but read about 500 ohms. There is a white (I believe to be thermister) sitting above the coil. What kind of reading should I get from this???. Also looking at the picture parts breakdown, there appears to be a rear mounted pcb. Does this pcb control the defrost cycle?
I am grasping at straws. The next vist will either be to refund the customer for the moneys already spent or fix the problem. MFI is no help. Europarts can only get their hands on a limited number of the defrost components. Knowing what I have mentioned, can anyone shed some light on this. We have one more chance at correcting the problem. I'm thinking rear pcb. The thermister is not available. Help!!!
Thanks in advance
david.vinyard@btconnect.com