john deere 4555 no blower motor

[banditman]

4555 tractor heater blower motor only works for 30 seconds when i start the tractor. You can turn the key on and off and turn the blower speed switch off and and on and no difference. Any idea what could be wrong? Im freezing to death every morning feeding cows and need some ideas what to check before trying to blindly fix it.

 

[Diesel Dave]

I suspect the blower motor itself is bad.
With the blower switch on high speed confirm 12 volts are found at the blower motor.

 

[banditman]

I suspect the blower motor itself is bad.
With the blower switch on high speed confirm 12 volts are found at the blower motor.

i will do that thanks for the help

 

[Vetech63]

Does it blow a fuse when it stops? Any type of thermostatic control on the system?

 

[banditman]

Does it blow a fuse when it stops? Any type of thermostatic control on the system?

Fuse doesn't blow. The thermostat is separate from the blower on these tractors. I have noticed the colder is the shorter it runs when i start the tractor. -6 this morning and it ran for maybe 5 seconds.

 

[Simon C]

Are the Cab air Filters Plugged. As V-Tech63 said, is there any thermostatic control on the unit.
Can you run separate battery power up to motor and see if it will run.
Simon C

 

[banditman]

finally got around to trying to fix this. The blower motor is just shot and found a very pinched wire where they run into the blower.