Wells MDMW-2-LWC Service Manual
MDMW LOW WATER SENSOR MODIFICATION KIT INSTALLATION
INSTRUCTIONS
NOTE: Installation of this kit must be done by qualified service personnel or the warranty
will be voided.
Tools Required!
Phillips screw driver Slot blade screw driver
3/8 inch nut driver 11/32 inch nut driver Razor
knife or x-acto knife
Parts List:
Heating element/high limit switch pan assembly Insulation cover/resistor
assembly Buzzer/bracket assembly Wire set wiring diagram
Instructions:
1. Remove base.
2. Remove insulation from control area and save.
3. Remove bottom insulation cover and discard.
4. Temporarily install insulation cover/resistor-assembly
5. Using the insulation cover as a template, cut rectangular hole in bottom
insulation.
6. Remove insulation cover and bottom insulation.
7. Using slot blade screwdriver, remove element clips from heater element pan.
EPC07/12/90S001-II45932 PN 45932 A
MDMM Low Mater Sensor Modification Kit Installation Instructions
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8. Remove heater element pan and discard.
9. Install heater element in heater element pan/high limit switch assembly.
10. Install heater element pan/high limit switch assembly.
11. Remove the two screws attaching the convenience outlet to the control panel.
12. Place buzzer/bracket assembly between convenience outlet and control panel. Reinstall.
13. Install bottom insulation and insulation cover/ resistor assembly.
14. Remove the control knob from the thermostat.
15. Remove the 2 screws attaching the thermostat to the control panel.
16. Lift out the thermostat and remove and discard the thermostat stop (refer to Figure 1).
THERMOSTAT STOP THERMOSTAT FACE
Figure 1
17. Install the thermostat stop supplied (refer to Figure 2).
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MDMW Low Mater Sensor Modification Kit Installation Instructions
18. Re-install thermostat in control panel and install knob.
NOTE: Steps 19 through 24, refer to attached wiring diagram.
19. Remove wire #4 from on/off switch and install on high limit switch
terminal # 3 (refer to Figure 3).
20. Install wire #9 between on/off switch and high limit switch terminal # 1 (refer
to Figures 3 and 4).
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