The current draws you measured are normal. Yes, the motor is 120V. The heater elements cycle on and off. They do not run continuously. Nothing to worry about. Everything is good.

My dryer is blowing 30 amp fuses I have checked just about all I can think of . I used a meter to check amp draw and what I found seems normal on cool,air one phase reads 0 and the other is 4.1 on heat one phase shows 22.5 and the other 21.5 . The fuses get real hot on the heat cycle , sometimes it works for several weeks and other time one or two loads .

The fuse holder may not be holding the fuses tightly, the wires may be loose in the lugs in that panel. Tighten those lugs. Continued heating will ruin the fuse holders. If it is a pull-out fuse holder, the tension may be gone for the prongs on the fuse holder. Look for blackened places.

Thanks bus driver but I have already checked and everything is tight .

Are you sure your ammeter is accurate? A lot of the cheapie clamp meters sold for under $100 are pretty questionable. The fact that it's inconsistent, reading 4.1a for the motor alone but only showing a leg imbalance of 1 amp with the heat on, makes me wonder.

Is the cable itself getting noticeably warm or hot, or just the fuses?

Davidr Im using a Fluke tester and only the fuses get hot. What you are saying regarding the motor makes sense , I would think that leg would draw somewhat more amps . Do you think the total amp from that leg should calculate exactly heating and motor amps together . One other thing I have notice since you bring it up the highter of the two legs (22.5) is the leg that does not draw from the motor leg but the one that shows 0 on the cool,air .