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Repair Parts Home  HVAC Parts  Sunheat Parts  3870001 On-Off Switch

On-Off Switch

Part Number: 3870001
Sunheat

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Availability: 25+ in stock
Price: $10.20
Quantity:
Ships within 1 business day

*This part replaces obsolete part #: and 354.W001.

Specifications
  • 20 amp.
Description:
Genuine Sunheat replacement part, this item is sold individually.
This switch turns the power on and off on the models listed below.

To remove this this press the two tabs on the side of the switch and pull it out.
You may want to make a diagram of where the three leads are located on the terminals.
Replace the leads and press the switch back in.

Product Information
Manufacturer: Sunheat
Product Number: 3870001
Classification: Part
Weight: 0.01 lbs.
Shipping: Ships Worldwide
Compatibility
Products Compatibility

This item works with the following types of products:

  • • Fireplace
  • • Heater
Questions & Answers

how do I replace the on/off switch
Armand for model number Zone heater SH-1500
Hello Armand, Thank you for the question. Here are some steps left by a previous customer. Hope this helps! 1. Removed the heater box from the wood frame. 2. Unplugged the wires to the switch. 3. Removed and replaced switch. 4. wiring diagram is white/red/black positions 3/2/1 on the switch. 5. Installed heater box into wood frame and secured it.
When i plug the heater in and turn the switch on the switch will light up but the heater will NOT come on
Russ for model number SH-1500
Hello Russ, thank you for your question. We would recommend testing the following parts, as these parts can cause the unit to not heat. Switch, High Limit Part Number: 3870002, Switch, High Limit, Part Number: 354.W008 and Switch, High Limit, UL, 120C Part Number: 3870003. If those parts are tested and are found to be ok, the issue could be with the board itself, part number Board, Power Routing Part Number: 3870015. I hope this helps!
Repair Instructions: Submitted by Customers Like You
27 of 35 people found this instruction helpful
Tool Type:
Heater
Parts Used:
On-Off Switch - 3870001
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver, Nutdriver
Switch broke.
1. Removed the heater box from the wood frame.
2. Unplugged the wires to the switch.
3. Removed and replaced switch.
4. wiring diagram is white/red/black positions 3/2/1 on the switch.
5. Installed heater box into wood frame and secured it.
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6 of 6 people found this instruction helpful
Tool Type:
Heater
Parts Used:
On-Off Switch - 3870001
Repair Difficulty:
Easy
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Pliers, Nutdriver
Defective on /off switch
Only problem I had was I put switch in up side down and wires code was wrong, just switch two wires around. Should of marked or remember that, other that that worked great,
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7 of 8 people found this instruction helpful
Tool Type:
Heater
Parts Used:
On-Off Switch - 3870001
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers, Nutdriver
Bad on/off switch on sun heater
Remove the screws from the back of the heater that hold the heat box in the wood casing. Then remove the support brackets from the left and right sides that you can see on the back. Then remove the one long screw from each wheel bracket on the bottom. Flip the heater back up right and pull the whole metal heat box from the wood case. Lay the heat box on its left side and remove the screws holding the right side cover on. Note the location of the wires on the old switch and them remove them from the switch. Squeeze the upper and lower tabs together and push the switch out the front. The use of pliers may be required. Assembly is the same but in reverse. Use caution tightening screws as to not to over tighten them. The metal screws will strip very easily. Good luck and have fun.
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2 of 2 people found this instruction helpful
Tool Type:
Heater
Parts Used:
On-Off Switch - 3870001
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Power Drill
On off switch went bad,
Easy take as part, took out old switch,ordered new one. Put in easily n we were back in business. Was given further instructions if this did not fix prob, call back n have other ideas. Didn't have to
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1 of 1 people found this instruction helpful
Tool Type:
Heater
Parts Used:
On-Off Switch - 3870001
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Power Drill, Adjustable Wrench
Switch melted
Take all screws off the bottom remove the inner case, take screws of side and replace switch.
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Tool Type:
Heater
Parts Used:
On-Off Switch - 3870001
Repair Difficulty:
Medium
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers
Switch quit working
1.unplug heater....2.remove bottom cover..4screws....3. Unplug the 3wires from switch...push switch through front cover...4.push new switch through from front...plug wires back in....replace bottom cover...plug back in...and your go to go
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Tool Type:
Heater
Parts Used:
On-Off Switch - 3870001
Repair Difficulty:
Easy
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Nutdriver
My grand son played with the switch until it broke.
1. Took the inside heater out of the wood box by following the online instructions.
2. Unscrewed the metal side by removing 20 + or - screws were the switch was.
3. Found the switch that needed replacing
4. Ordered the switch and after one week it arrived
5. Unplugged to broke switch and replaced the wires on the new and pressed it into place
6. Reassembled the whole Heater.
7. Plugged it in and voila. It worked like new.

Thank you.
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Tool Type:
Heater
Parts Used:
On-Off Switch - 3870001
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers
Switch broke.
Removed old switch and replaced it with new one.
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Tool Type:
Heater
Parts Used:
On-Off Switch - 3870001
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver
Power switch failure.
1. Removed the heat box from the cabinet.
2. Removed the side panel closest to the switch.
3. Squeezed both tables on the switch and pulled it out.
4. Disconnected three wires and installed the new switch connect wires.
5. Tested the power before screwing the side panel on.
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Tool Type:
Heater
Parts Used:
On-Off Switch - 3870001
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers
Power switch was bad
Took case off the heater, took panel off side, took old switch out and Put new switch in and connected using the diagram we made. Most difficult step was putting new switch in....and we were probably being overly careful!
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