Aber Hot Tub Manufacturing Pacific 2004, User Manual

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Troubleshooting Guide
PHT 1000 and 2002
(T & LT models)
MINI MAX DIGITAL SPA PAK rev:05
Using CT250 Printed Circuit Board
No display at topside
– Check that connection to main board is clean and sound at J8.
– Test a new topside control.
– Check for 120V primary power going into the transformer and for 12V secondary power out of the
transformer to J6 and J7 on the board before replacing the transformer.
– Replace board if there is 12V to J6 and J7.
Display flashes “th1/39” on system start up
– Check that temperature-sensing probe connection to main board is clean and sound at location J2.
– Try new temperature-sensing probe.
Display flashes “th2/current temperature” on system start up
– Check that the temperature-sensing probe is connected to the main board is clean and sound at location J1.
– Try new temperature-sensing probe.
Display flashes “th3/39” on system start up
– This indicates that both thermisters are detecting tub water temperature of less than 39°F (4°C) or they are
both disconnected (open). Pump(s) and blower will run in this condition.
Display flashes “OH” (Overheat)
– This indicates that the spa water temperature is over 112°F. The system should be shut down in this state
and will re-start automatically when the water cools below 112°F.
Display flashes “hot” (Overheat)
– This indicates that the heater body is over 112°F. The system should be shut down in this state and will
re-start automatically when the water cools below 112°F.
Display flashes “HL” (High Limit)
– This indicates that either the heater or the spa has reached 118°F or higher. The system will not re-start
automatically. To re-start the system, the water temperature must be below 112°F and the heater key at the
topside control must be pressed.
– If “HL” stays on and cannot be disarmed, there has been high amperage drawn through the board –
48 Amps total max. – replace board.
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