Troubleshooting - General - Pentair Water MiniMax 75 Manual De Operación Y Instalacion

TROUBLESHOOTING - GENERAL

Possible Cause
Heater will not come on
Automatic ignition system fails
Pump not running
Pump air locked
Filter dirty
Pump strainer clogged
Defective wiring or connection
Defective pressure switch
Defective gas controls
On-Off switch in "OFF" position
Heater Short Cycling
Insufficient water flow
Defective wiring
Defective or stuck by-pass valve
Defective hi-limit and/or thermostat
Heater Makes Knocking Noises,
Make sure all valves on systems are open
Heater operating after pump has shut off
Heater exchanger scaled
Rev. H 10-16-07
Remedy
Check if electrical connections are
correct and securely fastened –
If YES, call serviceman.
Place pump in operation
Check for leaks
Clean filter
Clean strainer
Repair or replace wires
Replace Switch
Call serviceman
Turn switch to "ON"
(Rapid On and Off Operation)
Clean filter and pump strainer
Repair or replace wiring
Call serviceman
Call serviceman
Shut off gas supply and call serviceman
Shut off gas supply and call serviceman
2 1
P/N 471105