Lancaster 7-LXDAN-1B Installation, Operating And Service Manual page 37

Problem
15. Error -106 = MAV/ SEPS/ NHBP/ AUX MAV
valve motor ran too long and unable to find the
proper park position
Motorized Alternating Valve = MAV
Separate Source = SEPS
No Hard Water Bypass = NHBP
Auxiliary MAV = AUX MAV
16. Error – 107 = MAV/ SEPS/ NHBP/ AUX
MAV valve motor ran too short (stalled) while
looking for proper park position
Motorized Alternating Valve = MAV
Separate Source = SEPS
No Hard Water Bypass = NHBP
Auxiliary MAV = AUX MAV
Possible Cause
a. Control valve programmed for ALT A or
B, nHbP, SEPS, or AUX MAV with out
having a MAV or NHBP valve attached to
operate that function
b. MAV/ NHBP motor wire not connected to
PC Board
c. MAV/ NHBP motor not fully engaged with
reduction gears
d. Foreign matter built up on piston and
stack assemblies creating friction and
drag enough to time out motor
a. Foreign material is lodged in MAV/ NHBP
valve
b. Mechanical binding
PAGE 37
Solution
a. 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. Then re-
program valve to proper setting
b. Connect MAV/ NHBP motor to PC
Board two pin connection labeled
MAV MTR. 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. Properly insert motor into casing, do
not force into casing. 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. 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.
a. Open up MAV/ NHBP valve and check
piston and seal/ stack assembly for
foreign material. 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. Check piston and seal/ stack assembly,
check reduction gears, drive gear
interface, and check MAV/ NHBP
black drive pinion on motor for being
jammed into motor body. 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.