Troubleshooting - General - Pentair MiniMax Guide D'installation Et D'utilisation

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
Manual By-Pass Valve not properly set
Heater Makes Knocking Noises,
Make sure all valves on systems are open
Heater operating after pump has shut off
Heater exchanger scaled
P/N 470880
Remedy
Check if electrical connections are
correct and securely fastened –
If YES, call service person.
Place pump in operation
Check for leaks
Clean filter
Clean strainer
Repair or replace wires
Replace Switch
Call service person
Turn switch to "ON"
(Rapid On and Off Operation)
Clean filter and pump strainer
Repair or replace wiring
Call service person
Call service person
Adjust By-Pass Valve, see page 18
Shut off gas supply and call service person
Shut off gas supply and call service person
2 2
Rev. K 5-31-06