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Starting Member


Monday, June 11th 2012, 5:40pm

Richdel 500 PRI controller error

When a particular station is ready to turn on (7), the controller displays and blinks a FU 5 error. Do you know what that means? I am without a owners manual. Help?


Supreme Member

Posts: 5,331

Location: Metro NYC


Monday, June 11th 2012, 7:53pm

short circuit - probably a bad solenoid


Tuesday, June 12th 2012, 8:36am

boots is right.
Except its FUS, not FU5
From the manual:
Display is stuck on a
zone and “FUS” is flashing
in the display.

1. Faulty valve solenoid.
2. Shorted wire connection.

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