WHAT IS THE MAX AMP DRAW? - Heating & Cooling

Usually, motor will draw lower amperage when tank is empty then draw most when about full. High amp draw is caused by long cord, weak capacitor, leaking check valve or blown head gasket/s. If gaskets are bad, the head of the compressor will be very hot and take much longer to fill. If the motor (is too small) is not correctly matched to the pump, the motor will draw max amps. To correct motor to small, use a smaller pulley at the motor. Using a smaller pulley will turn the pump less rpm giving the motor a break lowering amp draw. Good luck

with ampmeter take the current draw of battery max amp 30mA
if more than 30mA remove fuse one at a time and watch if current draw go down.
when current draw go down on a fuse than that is the circuit that drain your battery

There are 5 transistors in that unit that you are asking about. The amperage draw is about 50 amps

The capacitor may be weak if it has not been changed with the motor, which will cause excessive amp draw. Also may need condensing coil cleaning to reduce static pressure on the fan.
*Some motor ratings do not reflect what is actually needed for proper operation in some cases a higher amp motor is required.

if a>b and a>c then max = a
if b>a and b>c then max = b
if c>b and c>a then max = c

if a<b and a<c then min = a
if b<a and b<c then min = b
if c<b and c<a then min = c

Ok i assume you have the 208-240 model not the 120 model, when you said 2 legs. at 240 volts its max draw is 8.3 amps on each leg, even with the 120v model, the max is 16.0 amps.

so yes your heating coil is defective....so if you have 18 amp draw..that is your problem....

No. 3 spped motors can vary greatly in amp draw, so you need to select the correct one for your application. Hope this helps

Check the amp draw with the max amp draw on the data plate.

Let me try to send you to a quick fast electrical course on wiring size vrs amp draw it can carry before it burns into. The breaker box can send out the rated amps the wire comming into the box its sized for. (example. #3 can carry 10 amps) then it is distributed thru breaker thru the wires to the loads amp draw. depends on the maxium rated amp draw of the load, the wire can carry a certain amount of heat or amps. Ceck the max. rated amps or heat draw it can carry to size your wires & breaker,! thank you very much!

1/2+ amp, I know that sounds small but it will drain the battery.