Mr. Heater MH80KTR User Manual (English)

Questions and Answers:

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Anthony RuizAug 16, 2025
Why is my Mr. Heater MH80KTR Heater not sparking?
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  ohallAug 16, 2025
  If your Mr. Heater heater isn't sparking, start by checking the extension cord's length and gauge to ensure it meets the proper amperage requirements. Next, verify the wiring to the igniter matches the wiring schematic in the manual. Inspect the gap between the electrode probes, ensuring it's between 2.3 and 3 mm. If there's still no spark, replace the igniter assembly. If the issue persists, consider replacing the oil flame control assembly.
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James MorrisAug 20, 2025
Why is my Mr. Heater MH80KTR unable to detect flame?
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  Cassandra NavarroAug 20, 2025
  If your Mr. Heater heater is unable to detect a flame, check the wiring to the cad cell, referring to the wiring schematic in the manual. Clean the cad cell photocell. If the heater still doesn't operate, replace the cad cell. If the problem persists, replace the oil flame control assembly.
Z
zparkerAug 27, 2025
How to fix CAD Cell Failure in Mr. Heater MH80KTR Heater?
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  amy78Aug 28, 2025
  To address a CAD Cell Failure in your Mr. Heater heater: * First, check the wiring to the CAD cell, referring to the wiring schematic in the manual. * Then, try cleaning the CAD cell photocell. * If the heater still doesn't work, replace the CAD cell. * As a last resort, replace the oil flame control assembly.
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Susan WoodardAug 31, 2025
What to do if Mr. Heater MH80KTR Heater experiences high limit switch failure?
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  jenniferfranklinAug 31, 2025
  If your Mr. Heater heater's high limit switch fails, let the heater cool off, then press the reset switch and try again.
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Sally AguirreSep 4, 2025
How to reset Mr. Heater Heater with an open high limit switch?
- K
  kennethcampbellSep 4, 2025
  To address an open circuit in the high limit switch of your Mr. Heater heater, ensure the heater is cooled off, switch it to the “OFF” position, wait five minutes, and then try again.
B
Brooke AllenSep 7, 2025
What to do for a Mr. Heater MH80KTR Heater flame control failure?
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  Alicia SheltonSep 8, 2025
  To address a flame control failure in your Mr. Heater heater, first check the wiring within the heater, referring to the wiring schematic in the manual. If the issue persists, replace the oil flame control assembly.