33
World Leaders in Ultra-Pure Heating
www.heateflex.com
405 E. Santa Clara St., Arcadia, CA 91006-7218
O
: (626) 599-8566
F
: (626) 599-9567
Problem
Solution
The system will not enter
Recirculation mode.
(Aquarius
D.I. Water Heating
Systems only)
A. Verify that the
Recirculation
feature is enabled.
B. Verify that the “Recirculation” signal is being sent
to the system.
C. Vent/Relief is active. Wait until this mode clears.
D. Check for any loose wiring connections.
E. Verify that an adequate supply of air is present.
F. Verify that the solenoid valves are operational.
G. Verify that the air operated valves (AOV) are
operational.
H. The Pump and/or Pump Controller are defective.
The system is continuously Venting.
(Aquarius
D.I. Water Heating
Systems only)
A. There is air in the water lines. Wait for the air to
vent from the water lines.
B. Check the position of the recirculation liquid level
(L/L #2) sensor.
C. Check for any loose wiring connections.
D. Check to see that the recirculation liquid level
(L/L #2) sensor cable is connected.
E. Verify that the recirculation liquid level (L/L #2)
sensor is functional.
For more Troubleshooting Information please refer to the PF2000 Controller Instruction
Manual.
