I have a payne 04 3 ton heat pump it flips the breaker when you turn it on but does not blow the inline fuse.the blower motor and electric heat strip comes on and works .troubleshoot

Turn power off. Put the red from the airhandler to the violet from air handler. Turn power on and tell me what happens.

for somebody to jump the fuse it tells me there is a low voltage wiring problem. likely have a bad tstat wire somewhere. blower not turning on in auto usually means you have a G wire hooked up to the tstat and the tstat is set for gas heat, needs to be set to electric heat when G wire in place. there's a good start, NEW TSTAT WIRE and proper settings

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check the blower motor for seized of burnt out. Fuses blow because of excess current draw and in this case if the fan is not starting everything will stop. The gas will be set so that if the fan is not running the gas will not be allowed to turn on

The 3 amp fuse is in the red low voltage (24 volt) thermostat wire
and only gets power when the thermostat is set to turn on heat or a/c It should be connected to the red wire from the thermostat

You have one of two problems. Either the capacitor for the motor has failed or the motor has failed. I would turn off the power to the unit and see if you can locate the capacitor and remove it. An ac supply or electrical supply house can match up the capacitor. This is relatively inexpensive. Otherwise you will need a new motor.

You need to check the current rating of your heat strips. If it is more than 60 amps then you need a bigger breaker. If 60 amps or less then your heat strips are going bad. Also make sure your fan turns smoothly without any wobble.

That's a complicated system that needs a qualified technician to service it. Lots of people can install them and they run fine, for a few years. Your indoor unit, operating on 2 heat elements, will feel like its blowing cold air even though its heating, just not so well. And not like you are accustomed to. Each element (5kw)=22.7amps, on average. So 3 elements operating should trip a breaker. Its probably been operating on 2 heat element plus the heat pump. And now you have trouble with the heat pump. If you can't TRUST the guys working on your equipment, try someone else. A second opinion. Normally a 3 or 4 ton unit will have 15kw heat installed, heatpump or not. 5 ton, 20kw. If yours is a 3-4ton, cooling, the 100amp(or normally two 60 amp) breaker should have been installed upon equipment change out. If yours is blowing cold all the time, something is wrong with your heatpump. The electric heat inside operates only when the heatpump can't keep up(real cold outside), the heatpump is in defrost(then it's actually in cooling mode), or if you have the tstat in aux/em. heat. Try a local trane dealer? Of a technician with 15-20 yrs under their belt. A trane dealer should have trane tech support also. BIG HELP!!!

Some companies do sell a variable speed kit. It includes the motor and controls. Get your model and serial number of your unit and contact your local Payne dealer. The can locate the proper kit if available for you.

SECTION 412-04: Control Components 1999 Cougar Workshop Manual REMOVAL AND INSTALLATION Blower Motor Resistor Removal

1. Remove the upper footwell trim panel (passenger side).
   • Remove the pushpins.

1. Disconnect the blower motor resistor electrical connector.

1. Remove the blower motor resistor.

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hello I'm an M.B. tech. this is a common problem for that era. I t sounds like your blower motor is worn ou and occasionally it will rotate slightly. 1st I would check the fuses. During this era those fuses were not in the box. although the lid may say blower fuse outside fuse box. Often times they are a strip fuse inline with the blower harness. Generally they are located by the brake master cyl. They supply voltage to the blower motor resister pack. Some vehicles had 3 strip fuses 1 for each speed. The resister pack is called a blower mot regulator. It should be accessible from you passenger side underdash panel. assuming your fuses are good. Most likley it is the blower motor regulater