TM 10-4610-215-24
TM 08580A–24/2
Table 3-1. Troubleshooting.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
SOLID STATE BACKWASH TIMER
1.FILTER CONTROL DOES NOT RETURN TO SERVICE.
Step 1.
Step 2.
Step 3.
Step 4.
Check for 115 Vac across terminals 1 and 2 of J4 (Refer to fig. 1-12).
With power disconnected check continuity across reset switch.
If open, replace reset switch.
Check circuit breaker.
a. If tripped, correct.
b. Press reset button.
Check timer motor for rotation.
If motor does not start, replace.
2. FILTER CONTROL CYCLES.
Step 1.
Check setting on time switches.
Step 2. With power off, check for continuity across C and N.O. positions of homing limit switch with cam
in the service position.
3. FILTER CONTROL DOES NOT START WHEN SWITCH IS ACTIVATED.
Step 1.
Check wiring.
Step 2.
Check that remote switch is functional.
If not, replace.
Step 3. Check that power is properly connected.
3-8
