Aquacal Leisure Temp LT1000, Installation Manual

Page: 63 / 72

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Blank Display
ISSUE
The Heat Pump may have an incoming power problem.
RESOLUTION
Confirm electrical power is being supplied to the heat pump from electrical disconnect(s).
Display Panel Not Responding
ISSUE
The heat pump's display panel will not respond to user input.
RESOLUTION
1. If heat pump display shows "
UNDER REMOTE CONTROL
", use the external control device to control
the heat pump.
2. If needed, check with the external controller manufacturer for further assistance using that device.
Displays Defrosting
Displays "
DEFROSTING
"
ISSUE
The heat pump has sensed the coil is icing up. See " Ice Forming on the Heat Pump " on page 63.
No action is required.
RESOLUTION
Heat Only Units - Passive Defrost
When ice starts to form on the coil, the compressor will stop operating while the fan continues to
operate.
l
The coil will begin to warm to the surrounding air temperature. When the coil's temperature rises
above 38° F (3.3° C), the compressor is restarted and heating resumes.
l
If the coil's temperature remains below 38° F (3.3° C), the compressor will remain off.
Displays "
NO SYSTEM FIRMWARE
"
ISSUE
The heat pump has encountered a software error.
RESOLUTION
Call for service.
Displays "
NO POOL/SPA WATER FLOW
"
ISSUE
Low or no water detected. This is normal when the circulation pump is deactivated.
RESOLUTION
1. Confirm the filter pump is on.
2. If a multiple-speed filter pump is being used, run at a higher speed to determine if the error persists. Do not
exceed the maximum flow rate for your model.
3. Confirm water is not being diverted away from the heat pump.
l
See " Water Flow Rates " on page 13.
l
See " Adjusting Water Flow Using ΔT (Delta-T) " on page 15.
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