Troubleshooting - Pahlen MiniMaster User Manual

MiniMaster
14. Operating information and troubleshooting
LED signals
Type of LED signal
The two red LEDs are lit with a steady
glow
The two red LEDs flash alternately
All red and yellow LED's blink
simultaneously
LED is lit with a steady glow
Blinking LED
Rolling LEDs
Only applies to the chlorine unit:
Blinking LED 3, 4, 5 after start sequence
Blinking LED 3, 4, 6 after start sequence
Only applies to the pH unit:
Blinking LED 2, 4, 5 after start sequence
Blinking LED 2, 4, 6 after start sequence

Troubleshooting

Fault type
The unit/dosing equipment does not start
Unstable/low flow in the flow cell
Unit cannot be calibrated
High and low values during operation
- not stable calibrated value.
Underpressure in return hose/flow cell
Reservation
We reserve the right to correct any printing errors. We also reserve the right to make changes to technical specifications for
MiniMaster or its manual without prior notice.
Colour deviations may occur due to technical reasons related to printing.
Explanation
The unit is not calibrated - dosing is not possible
Flow too high or too low - dosing is deactivated
Time-Out function:
Continuous dosing has been under way more than 90 min - dosing is turned off.
• Check dosing pump's function and setting.
• Check that the chemical level is not too low in the drums.
• Check leaks/function of dosing hoses, dosing points and dosing pumps.
Restart:
First turn off the dosing (On/Off button E), wait a few seconds,
then start the dosing by pressing the On/Off button again (E).
Dosing is activated; measurement is in progress
Dosing is NOT activated, but measurement is in progress
Forced dosing is in progress.
Time-Out activated = dosing is blocked after 90 minutes of continuous dosing,
(factory setting)
Time-Out deactivated (unlimited continuous dosing)
Alkali dosing activated
Acid dosing activated
Action
• If the unit is interlocked over a turned off circulation pump, the unit will not start.
• Check fuses on the circuit board.
Check/clean prefilter. Clean and lubricate the adjustment screw on the flow cell.
• Low/high measurement water flow (only chlorine unit) - check filter.
• Unreasonable measurement values; free chlorine < 0.3ppm or > 3.0ppm
- check the chlorine values with photometric equipment.
• High Cyanuric acid contents in the pool water
- check with photometric equipment.
Dilute the pool water with tap water as necessary.
• Electrode or connection error
- check connections, clean electrodes or replace them.
• Dosing set too high or low. Adjust dosing based on pool volume and turnover
rate.
• Check that the water flow is even through the flow cell.
• Check electrodes' condition and connections.
Press the Flow button (F, see picture 6), open Adjustment Screws (H, see
picture 7) to max position. Then cut the flow with the ball valve L2 (see picture 2)
carefully until LED 1 to 4 are lit.
18
ENGLISH