missing or broken gear
Drive bracket incorrectly aligned to back plate g. Resent drive bracket properly
PC board is damaged or defective h. Replace PC board
i.PC board incorrectly aligned to i.Ensure PC board is correctly snapped
drive bracket onto drive bracket
Problem Possible Cause Solution
Control valve stalled in regeneration
Motor not operating a. Replace motor
No electric power at outlet b. Repair outlet or use working outlet
Defective transformer c. Replace transformer
Defective PC board d. Replace PC board
Broken drive gear or drive cap e. Replace drive gear or drive cap
assembly assembly
Broken piston retainer f. Replace drive cap assembly
Broken main or regenerant piston g. Replace main or regenerant piston
Control valve does not regenerate automatically
when REGEN button is depressed and held a. Transformer unplugged a. Connect transformer
No electric power at outlet b. Repair outlet or use working outlet
Broken drive gear or drive cap assembly c. Replace drive gear or drive cap
assembly
Defective PC board d. Replace PC board
Control valve does not regenerate automatically but does when REGEN button is depressed
By-pass valve in bypass position a. Put bypass valve in normal operation
position
Meter connection disconnected b. Connect meter to PC board
Restricted/stalled meter turbine c. Remove meter and check for rotation