Introduction

Make sure that all power sources are disconnected before begining disassemble. The control board can be purchased from original supplier or second hand.

Parts

No parts required.

  1. Remove the lower plastic control box cover by gripping it with two hands and pulling it away from the control box. Remove the plastic wire cover by gripping it with two hands and it pulling away from control box. Remove the Lithium Ion battery by pulling out. The slide out battery compartment.
    • Remove the lower plastic control box cover by gripping it with two hands and pulling it away from the control box.

    • Remove the plastic wire cover by gripping it with two hands and it pulling away from control box.

    • Remove the Lithium Ion battery by pulling out. The slide out battery compartment.

  2. Grasp the control knob that is located at the center of the control box and pull it away from control box. With two hands grasp the main control box cover and pull it away from the control box. With two hands grasp the main control box cover and pull it away from the control box.
    • Grasp the control knob that is located at the center of the control box and pull it away from control box.

    • With two hands grasp the main control box cover and pull it away from the control box.

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  4. Use a Phillips #0 screwdriver to remove the four 6mm screws.
    • Use a Phillips #0 screwdriver to remove the four 6mm screws.

  5. The snap connector must be cut free. It is best to use a razor blade, as the space is extremely limited. Cut on the top side and not the underside to insure it will snap back into place. Place the razor blade on top of knob control board, sliding the razor blade underneath the snap connector. Then move the razor blade back and forth to remove the snap connector. Place the razor blade on top of knob control board, sliding the razor blade underneath the snap connector. Then move the razor blade back and forth to remove the snap connector.
    • The snap connector must be cut free. It is best to use a razor blade, as the space is extremely limited. Cut on the top side and not the underside to insure it will snap back into place.

    • Place the razor blade on top of knob control board, sliding the razor blade underneath the snap connector. Then move the razor blade back and forth to remove the snap connector.

  6. Using a spudger, release the clips holding the bottom control board. Then slide it downward while lifting control board away. This will separate the bottom of the control board from casing. Once the bottom control board has been removed, simply lift the entire control board assembly away from the plastic casing. Then replace. Once the bottom control board has been removed, simply lift the entire control board assembly away from the plastic casing. Then replace.
    • Using a spudger, release the clips holding the bottom control board. Then slide it downward while lifting control board away. This will separate the bottom of the control board from casing.

    • Once the bottom control board has been removed, simply lift the entire control board assembly away from the plastic casing. Then replace.

Conclusion

To reassemble your device, follow these instructions in reverse order.

One other person completed this guide.

Robert

Member since: 09/22/2014

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1 Guide authored

Team

USF Tampa, Team 1-4, Donnelly Fall 2014 Member of USF Tampa, Team 1-4, Donnelly Fall 2014

USFT-DONNELLY-F14S1G4

1 Member

1 Guide authored

5 Comments

Can anyone who has one of these tell me what the shiny black disc component just above the purple lithium battery compartment is, and what values it is? My dad's has fried this component to crispy charcoal.

robin0 - Reply

Some checking indicates it may be a metal oxide varistor, about 10mm diameter, but all the part numbers are burned away. Thanks for any help you can give me.

robin0 - Reply

what happen if the screen said " PR OFF"

sergo legoute - Reply

Why won’t the A/B switch work properly? I can program A and it works fine - manual or program; same with the B switch. However, when programmed to have B stations run after A stations, B station valves will not function

sob5th - Reply

The PR off is indicated. The fuse was blown and when I replace the fuse with the dial in the off position and I then plug it in it keeps blowing the new fuses. Any suggestions.

Wayne - Reply

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