Lancaster 7-LXDAN-1B, Installation, Operating And Service Manual

PAGE 36

Problem

Possible Cause

Solution

12. Error – 102 = Control valve motor ran too 

short and was unable to find the next cycle 

position and stalled

a. Foreign material is lodged in control valve a. Open up control valve and pull out 

piston assembly and seal/ stack 

assembly for inspection. Press 

NEXT

and 

REGEN

 buttons for 3 seconds 

to resynchronize software with piston 

position or disconnect power supply 

from PC Board for 5 seconds and then 

reconnect.

b. Mechanical binding

b. Check piston and seal/ stack assembly, 

check reduction gears, check drive 

bracket and main drive gear interface. 

Press 

NEXT

 and 

REGEN

 buttons for 

3 seconds to resynchronize software 

with piston position or disconnect 

power supply from PC Board for 5 

seconds and then reconnect.

c. Main drive gear too tight

c. Loosen main drive gear. Press 

NEXT

and 

REGEN

 buttons for 3 seconds 

to resynchronize software with piston 

position or disconnect power supply 

from PC Board for 5 seconds and then 

reconnect.

d. Improper voltage being delivered to PC 

Board

d. Verify that proper voltage is being 

supplied. Press 

NEXT

 and 

REGEN

buttons for 3 seconds to resynchronize 

software with piston position or 

disconnect power supply from 

PC Board for 5 seconds and then 

reconnect.

13. Error – 103 = Control valve motor ran too 

long and was unable to find the next cycle 

position

a. Motor failure during a backwash

a. Check motor connections then Press  

NEXT

 and 

REGEN

 buttons for 3 

seconds to resynchronize software 

with piston position or disconnect 

power supply from PC Board for 5 

seconds and then reconnect.

b. Foreign matter built up on piston and 

stack assemblies creating friction and 

drag enough to time out motor

b. Replace piston and stack assemblies. 

Press 

NEXT

 and 

REGEN

 buttons for 

3 seconds to resynchronize software 

with piston position or disconnect 

power supply from PC Board for 5 

seconds and then reconnect.

c. Drive bracket not snapped in properly 

and out enough that reduction gears and 

drive gear do not interface

c. Snap drive bracket in properly then 

Press 

NEXT

 and 

REGEN

 buttons for 

3 seconds to resynchronize software 

with piston position or disconnect 

power supply from PC Board for 5 

seconds and then reconnect.

14. Error – 104 = Control valve motor ran 

too long and timed out trying to reach home 

position

a. Drive bracket not snapped in properly 

and out enough that reduction gears and 

drive gear do not interface

a. Snap drive bracket in properly then 

Press 

NEXT

 and 

REGEN

 buttons for 

3 seconds to resynchronize software 

with piston position or disconnect 

power supply from PC Board for 5 

seconds and then reconnect.