Holman PRO469 User Manual

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Troubleshooting
Symptom Possible Cause Suggestion
No display
Faulty transformer
or blown fuse
Check fuse, check field wiring,
check transformer
Single station not working
Faulty solenoid coil, or
break in field wire
Check fault indicator
in display
Check solenoid coil (a good solenoid coil
should read around 33ohms on a multi
meter). Test field cable for continuity.
Test Common cable for continuity
No automatic start
Programming error or
blown fuse or transformer
If unit works manually then check
the programming. If not then check
the fuse, wiring and transformer.
Buttons not responding
Short on button or
programming not correct.
Unit may be in sleep
mode and no AC power
Check instruction book to ensure
programming is correct. If buttons
still not responding then return
panel to supplier or manufacturer
System coming on at random
Too many start times
entered on automatic
programs
Check number of start times entered
on each program. All stations will
run once for every start. If fault
persists return panel to supplier
Multiple stations running at once Possible faulty driver triac
Check wiring and swap faulty station
wire’s on the controller terminal block
with known working stations. If the
same outputs are still locked on, return
panel to supplier or manufacturer
Pump start chattering
Faulty relay or
pump contactor
Electrician to check voltage
on relay or contactor
Display cracked or missing segments
Display damaged
during transportation
Return panel to supplier or manufacturer
Sensor input not working
Sensor enable switch in the
OFF position or faulty wiring
Slide switch on front panel to the
ON position, test all wiring and
make sure the sensor is a normally
closed type. Check programming
to make sure sensor is enabled
Pump not working on a specific
station or program
Programming error with
pump enable routine
Check programming, using the manual
as a reference and correct mistakes
PRO469 Manual 2021 v1.indd 16PRO469 Manual 2021 v1.indd 16 15/1/21 9:40 am15/1/21 9:40 am

Holman PRO469 Specifications

General

Brand	Holman
Model	PRO469
Category	Controller
Language	English