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QMark MUH heater makes metal rubbing noise when on.

The heater is hard mounted to the circuit. No chorded connection.It makes a loud metal scratching noise when it comes on. The product still heats up the garage but the noise is very loud and I am worried that it may start a fire or blow the breaker.

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mike17757
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SOURCE: My Qmark electic heater keep tripping the breaker

You will need to provide additional diagnostic information. Most likely the breaker is defective. Warning: potential for injury is HIGH working on power electrical! Do not attempt if you do not have experience and training. Proper personal protective equipment and methods should be used. The running amps needs to be measured when the heater is turned on. Find the rating on the breaker and calculate 80% of this rating. The heater current should be less than this value. If the breaker is tripping when less than 80% is measured it is most likely defective. Measure all power legs on the heater. Also check the nameplate info on the heater Volts, Amps. Compare these values to the actual.

Posted on Feb 06, 2015

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