Introduction

This guide shows step by step instructions for replacement of the thermostat assembly in the Holmes HEH8031 heater.

Ensure the device is unplugged from the wall outlet.
  • Ensure the device is unplugged from the wall outlet.

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Remove eight 12-mm Phillips #2 screws from the back cover.
  • Remove eight 12-mm Phillips #2 screws from the back cover.

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Turn heater over so the controls are facing up. Lift the front housing away from the back of the fan and slowly fold the front housing back down to the floor.
  • Turn heater over so the controls are facing up.

  • Lift the front housing away from the back of the fan and slowly fold the front housing back down to the floor.

  • Internal wires are connected to both halves of the housing. Be careful when separating the housing.

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Remove four 12mm  Phillips #2 screws from the circuit board.
  • Remove four 12mm Phillips #2 screws from the circuit board.

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Black Friday
Broken doesn't stand a chance.
Remove two Phillips #2 12mm screws from housing
  • Remove two Phillips #2 12mm screws from housing

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Remove zip tie from wire with pliers
  • Remove zip tie from wire with pliers

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Separate fan assembly from heating coil
  • Separate fan assembly from heating coil

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Remove 1 Phillips #2 screw
  • Remove 1 Phillips #2 screw

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Remove thermostat from rear housing
  • Remove thermostat from rear housing

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remove solder from thermostat wire on circuit board
  • remove solder from thermostat wire on circuit board

  • Soldering iron will be hot

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Conclusion

To reassemble your device, follow these instructions in reverse order.

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Richard S Woodruff

Member since: 10/12/2016

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IUPUI, Team 2-1, Baechle Fall 2016 Member of IUPUI, Team 2-1, Baechle Fall 2016

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