Hi Neptuners, here is an actual question I received after Noe replaced the R11 resistor and Q6 triac. Most control boards will work after this process but occasionally one will be stubborn because it suffered mode damage than usual. If you find that your water will not fill then you will need to replace the machine control board.
"Hi,
I replaced the wax motor, R11, and Q6 for the no light no spin symptom. My Neptune MAH3000 still will not spin.
Any troubleshooting hits where else to look?
Thanks,
Noe"
Hi Noe,
I was working on developing this information so folks can check their control boards out after the R11/Q6 repair with a simple ohmmeter.
If you have an ohmmeter, check for continuity on the following points:
If wax motor does not energize - i.e. door locked light does not come on in spin cycle. (note: Wax motor takes 45 seconds to work)
1. Connector P7.4 to pin 3 of Q6 - should be close to 0 ohms
2. Q6 pin 1 to Q22 pin 1 - should be close to 0 ohms
3. Q6 pin 1 to Q3 pin 1 - should be close to 0 ohms
4. Q6 pin 2 to C16 (lead closest to P7 connector)
If you don't read close to 0 ohms on any of these checks turn board over and follow the copper tracks and find out why you don't have 0 ohms.
You might have the use the repair wire to fix a break in a track.
Tip: Some breaks can be right next to the component pads and can be very difficult to see. A meter is important to locate these breaks.
Note: pin 1 on the Q's is looking at the flat side the very left pin. Pin 2 is center pin and pin three is the far right pin when looking at the flat side.
If all of these checks show a short and the Neptune fills with water when started then the low cost Stage 2 kit should fix your control board.
Until next time...