Easy
15-30 minutes
Thermocouple 10" 26655
OEM part for: Heatstar, Mr. Heater
Part Number: 26655
$12.59
In Stock
Ships within 1 business day 
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Compatibility
This Thermocouple 10" will fit the following 6 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
This item works with the following types of products:
- Heater Parts
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I liked the part
The part fit and installed easley and was delivered quickly
Guest -
December 1, 2020
Verified Purchase
heater replacement
It came quickly and was packaged nicely. It just didn't fit our heater. The model number matches this replacement part but because the heater was old it was not the right part. Easy return though.
Guest -
January 11, 2023
Verified Purchase
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
The heater's fire would not stay lit.
David - January 22, 2017
👍 6 of 8 people found this instruction helpful
Tool Type
Heater
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Socket set, Wrench Set, Nutdriver
Parts Used
I suspected that the thermocouple was faulty because the heater would burn as long as I held the button in.
To access the thermocouple I had to remove the fan and motor. I also had to remove the base sheet-metal to access the thermocouple. I cut the plastic tie that held the fan motor wires secure and out of the way of the fan blades. I removed the old thermocouple being careful to not bend anything. I them laid the new thermocouple next to the old one and bent the tube to match the old thermocouple. I then installed the thermocouple being careful not to damage the bakelite connector that the thermocouple threads into. Finish up by reinstalling the fan & motor. Then secure the wires for the motor inside the heater base to take up the slack and prevent the fan from damaging them.
Then test the unit to see if it now works as it should.
To access the thermocouple I had to remove the fan and motor. I also had to remove the base sheet-metal to access the thermocouple. I cut the plastic tie that held the fan motor wires secure and out of the way of the fan blades. I removed the old thermocouple being careful to not bend anything. I them laid the new thermocouple next to the old one and bent the tube to match the old thermocouple. I then installed the thermocouple being careful not to damage the bakelite connector that the thermocouple threads into. Finish up by reinstalling the fan & motor. Then secure the wires for the motor inside the heater base to take up the slack and prevent the fan from damaging them.
Then test the unit to see if it now works as it should.
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Thermocouple was no good.
Gene - November 14, 2017
👍 2 of 2 people found this instruction helpful
Tool Type
Heater
Difficulty
Easy
Time
15-30 minutes
Tools Used
Pliers, Power Drill, Socket set, Wrench Set
Parts Used
1. Removed the fan and the fan cover at the back end of the unit.
2. Removed the old thermocouple.
3. Inserted the new thermocouple and connected the ends.
4. Replaced the fan and the cover.
5. Hooked LP up and the unit fired right up and stayed lit.
2. Removed the old thermocouple.
3. Inserted the new thermocouple and connected the ends.
4. Replaced the fan and the cover.
5. Hooked LP up and the unit fired right up and stayed lit.
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Heater would not stay lite.
Louis - April 25, 2019
Tool Type
Heater
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, Nutdriver
Parts Used
1. Remove cover to get inside the heater wiring on the bottom.
2. Unscrew the thermocouple from the tee.
3. Remove 3 screws to take the fan assembly out.
4. Reach in with a Philips screw driver from the front and pliers from the back and remove the small nut and bolt holding the other end of the thermocouple with the bracket.
5. Remove bracket from thermocouple noting the depth.
6. Install the new thermocouple onto the bracket at the same depth the old was.
7. Install back in reverse.
2. Unscrew the thermocouple from the tee.
3. Remove 3 screws to take the fan assembly out.
4. Reach in with a Philips screw driver from the front and pliers from the back and remove the small nut and bolt holding the other end of the thermocouple with the bracket.
5. Remove bracket from thermocouple noting the depth.
6. Install the new thermocouple onto the bracket at the same depth the old was.
7. Install back in reverse.
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Heater would not lite
William - April 4, 2019
Tool Type
Heater
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set, Wrench Set
Parts Used
Removed the old thermocouple
Installed the new one.
Installed the new one.
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heater won't stay running .
Michael - January 11, 2019
Tool Type
Heater
Difficulty
Easy
Time
30-60 minutes
Tools Used
Nutdriver, Adjustable Wrench
removed screws holding cover on, removed control board, installed new board. removed nut holding thermocouple in place removed thermocouple, replaced thermocouple, install nut, replaced cover.
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Thermal couple was bad
George - February 22, 2018
Tool Type
Heater
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Socket set, Nutdriver
Parts Used
Disassembled pulled fan out to get to the thermal couple
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Thanks for voting and helping fellow customers!
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
