New dryer blows circuit but not the dryer circuit.

Hi @greg17520

Does it blow if you just run the dryer on "cool" i.e. no heat?

Usually with most dryers the two power supplies are split.

One supplies the motor and controls and the other the heater element.

Sounds like there may be a wiring error from or in the premise's power box.

One of the 30A breakers may not be supplying power to the dryer but the 15A breaker that blows does.

When the 15A breaker blows does this affect the function of the lights or power outlets in the bedroom?

Unusual that there's a dedicated breaker for a bedroom if this is what you meant - normally for lights there's one breaker for the particular premises and for general power outlets they usually have two breakers that between them supply all the outlets for the particular premises. Higher power appliances e.g. air con and dryers etc have their own dedicated breaker(s) although sometimes dryers can be connected to an existing wall outlet supply with an added supply run in especially for it. - i.e. the outlet socket is changed to a either a 3 or 4 pin socket to suit the dryer power cord plug.

What is the model number of the dryer?

Hi @greg17520

Just verifying that the dryer is plugged into the designated dryer power outlet and not just a regular wall power outlet?

The mini manual wiring diagram, confirms that your model requires 2 x 120VAC feeds.

If the dryer is plugged into the designated dryer power outlet then given that a 15A breaker blows and not either of the dryer's dedicated 30A breakers, it's looking like a wiring problem. Most likely at the power board

See p.22- p.24 of the owner manual for the electrical specifications and the connections at the dryer,

If you have a DMM (digital multimeter), unplug the dryer from the wall power outlet and connect the DMM (AC volts mode) between both supply pins (not the earth pin) on the wall outlet. You should measure 240V AC

If there's only 120V then either it hasn't been connected to the correct breaker or there's a wiring problem.

If the 120V is still there when both of the dryer breakers are tripped, then trip the bedroom breaker and check if it disappears. If it does then it proves that the dryer has been connected to the wrong breaker circuit. Maybe the 2 dedicated dryer breakers haven't been connected at all. You may need an electrician to check this out.