Tosot TM18HX4O - User Manual

Questions and Answers

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ashley67Aug 11, 2025
What to do if my Tosot TM18HX4O Air Conditioner won't start?
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  Sara AustinAug 11, 2025
  If your Tosot Air Conditioner isn't starting, here's what you can check: * First, confirm that the issue isn't a power outage and wait for the power to be restored. If there is no power outage, check the power supply circuit and ensure the power plug is securely connected. * Inspect the wiring between the indoor and outdoor units, referring to the circuit diagram to ensure correct connections and firm wiring terminals. * Ensure the air conditioner is reliably grounded and that all wires are correctly connected. Examine the wiring inside the unit, and if the power cord's insulation is damaged, replace it. * Verify that the air switch is the proper one. * Try replacing the batteries in the remote controller, or consider repairing or replacing the remote controller itself.
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Jim GlennAug 22, 2025
Why is my Tosot Air Conditioner cooling (heating) poorly?
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  Lisa FernandezAug 22, 2025
  If your Tosot Air Conditioner isn't cooling or heating effectively, consider the following: * Adjust the set temperature to a more appropriate level. * Increase the fan speed of the indoor unit (IDU) to high or medium. * Clean the filter of the indoor unit, as a blocked filter can impede performance. * Adjust the installation positions of the indoor and outdoor units, and install rain and sun protection for the outdoor unit. * Address any refrigerant leaks by identifying and fixing the cause, then adding more refrigerant. * Replace the 4-way valve if it is malfunctioning. * Replace the capillary if it is malfunctioning. * Ensure the valve is fully open to allow sufficient flow volume.
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Ellen TrujilloAug 31, 2025
How to fix a Tosot Air Conditioner when the horizontal louver can't swing?
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  Shaun JohnsonAug 31, 2025
  If the horizontal louver on your Tosot Air Conditioner isn't swinging, try these steps: * Check the wire connections according to the wiring diagram, ensuring all wiring terminals are firmly connected. * If the connections are correct, the stepping motor may be damaged and require repair or replacement. * If the issue persists, the main board might be damaged and need replacement with the same model.