Forced Air Electric Heaters

The ceiling mounted electric heaters are a perfect solution for any garage, barn or workshop. No ventilation is required so installation is breeze. You just need a 240v power supply from a 30 amp circuit. One unit even includes a wall mounted remote thermostat. The laminated enclosed industrial strength motor and heavy duty electric coils will provide years of trouble free heat. The electric forced air space heaters have a simple and durable design, making them an excellent heating solution in many applications. Whether you need to keep your feet warm under your desk or to keep your pipes from freezing under your house, this thermostatically controlled heater will do the trick.

Page Contents

Forced Air Electric Heater FAQs
Forced Air Electric Heater Manuals and Troubleshooting Guides
Forced Air Electric Heaters
Parts Ordering

Forced Air Electric Heater FAQs

I plug in the heater but nothing happens.

There are multiple reasons why the heater may not start.  Here are the most likely reasons:

One of the circuit breakers or fuses in your location may be tripped.  (240 vac = 2 – 120 vac circuits) check the breaker panel to rest the breaker(s) (2 breakers are used for the 240 vac heaters).

The plug or power supply outlet connection may be defective or bad.  Try another plug or check the breaker panel to reset the breaker(s) or replace a fuse.

The thermostat may be set too low or is defective.  Or the wiring to the remote thermostat is loose or bad.  Check connections at both ends of the wiring from heater to remote thermostat.  Turn the thermostat up to a higher setting, or replace the thermostat.

The high limit thermal overload switch may have been tripped.  Turn off the heater and wait for it to cool down before turning it back on.

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The heater runs continuously.

The thermostat may be set too high or is defective.  Check the thermostat settings and verify that it is functioning.

If it seems to be functioning correctly, then the unit may be undersized for the area.  Meaning the heat loss in the area may be greater than the unit can handle, which would require additional heaters.

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The heating elements are on but the motor does not work or the fan blade is not turning.

Check to see if something is blocking the fan blades.  If yes, then turn off the heater and wait for it to cool to remove any obstructions.  If this does not resolve the issue, then the motor may be defective and may need to be replaced.

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The enclosure is extremely hot.

The air vents may be blocked. Or the motor may not be running at the correct speed and could be defective.  Or the thermal overheat protection sensor may be defective.  Clean inlet vents and check to see if the fan blades turn freely.  If none of this solves the issue, replace the motor.

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I cannot get the room to the desired temperature.

This may be caused by low voltage from your power source or too small an extension cord capacity.

The thermostat may also be set too low or is defective.  Try turning the thermostat to a higher setting and check to see if the extension cord is getting hot.  If yes, then a larger wire extension cord is needed.

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The heater is overheating.

The thermostat may be defective.  Or the inlet by the fan is blocked or restricted and the high limit safety switch (hls) has been activated too many times or is defective.

The motor is not running up to speed from a loose fan blade or defective motor.  Tighten the fan blade set screen, replace the motor, check the extension cord or electrical connection to the power supply, and verify the wire size is sufficient amperage for what is needed.  See amperage requirements for the heater in the manual and check with an electrician that the wiring is sufficient.

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What is a High Limit Safety shut-off?

A High Limit Safety is a switch located inside the device which will turn it off if the internal temperatures of the device rise above a specific level.

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Do you need to order parts?

For your convenience please enter your serial number below to access Mr. Heater’s interactive schematic & parts ordering system. This system will allow you to browse your specific product schematic to order the correct service parts as well as download a complete manual for your make & model year.  If your product was produced any year prior (2011 and earlier), please call our Service Department at 1-800-251-0001, where our technicians will gladly assist you.


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Forced Air Electric Heater Manuals and Troubleshooting Guides

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Parts Ordering

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