I recently bought a 2021 Case TV450B with 2100 hours. The air wasn't cooling so I checked the fuse for the compressor and it was blown. Replaced the 25 amp with a 30 which was all I had and it blew. It did blow cold air for a minute until it blew. Has anyone ever had this problem?
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Case TV450B air conditioner compressor blowing fuse
- Thread starter DmanD6N
- Start date
HarleyHappy
Senior Member
Sounds like the compressor is having a bad day.
HeavyTech
Active Member
Proving the all the electrical is good on the machine the most common issue is the clutch coil goes bad, you'll have to test the coil by unplugging the wire'(s) and doing an ohms test using a multimeter on the coil itself
If the clutch coil is bad you can find a local ac compressor shop bring the bad coil with you and they and double check the ohms and help you get the correct replacement, you do not need to buy a complete compressor for thousands of dollars
If your coil is good you'll have to start checking the switch and wires going to the fuse box to the compressor
Common spot is underneath the fuse box sometimes have bad wire and or connection possibly burnt or wire is touching metal
Hope this helps you out
If the clutch coil is bad you can find a local ac compressor shop bring the bad coil with you and they and double check the ohms and help you get the correct replacement, you do not need to buy a complete compressor for thousands of dollars
If your coil is good you'll have to start checking the switch and wires going to the fuse box to the compressor
Common spot is underneath the fuse box sometimes have bad wire and or connection possibly burnt or wire is touching metal
Hope this helps you out
HeavyTech
Active Member
Did you ever figure out the issue ?
Simon C
Senior Member
- Joined
- Jul 1, 2015
- Messages
- 3,067
- Location
- Rocky Mountain House , AB., Canada
- Occupation
- Heavy Equipment Mechanic
Find out if the fuse that powers it up or the relay that powers it up is loose on one pin. Case has tiny pins on the relays and they come loose over time, of coarse the clutch could be shorting out, but that could be checked with remote power.
Simon C
Simon C