Watlow F4T Install & Troubleshooting
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Chapter 5 Troubleshooting
Replacing the Battery
All F4T controllers are equipped with a field replaceable battery. In a worse case scenario,
the battery should be replaced every 7.5 years. If a replacement is required, the part num
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ber for the battery is BR 2032. The Watlow part number for the battery is: 0830-0858-0000
Identifying the battery location:
1. Orient the controller as shown in the picture below.
2. Notice that the battery compartment is located just below the two USB.
Removing the old battery:
1. Ensure all power is off to the F4T.
2. Insert a small screwdriver into the hole provided on the side of the controller as shown
below.
3. Place screwdriver into the bottom of the white battery holder and apply downward
pressure to slide the battery out of the housing. Once removed, make note of the
polarity as seated in the holder.