Diagnostics - Jandy JRT Serie Manuel D'installation

Page 26
ENGLISH
8.2

Diagnostics

In the event a pressure switch opens or another fault condition occurs, the LCD screen will display the fault until the
problem has been resolved. Please refer to the following table for the list of diagnostic conditions.
DIAGNOSTIC CONDITION
FAULT-
NO FLOW
FAULT-
LOW REF PRESSURE
FAULT-
HIGH REF PRESSURE
FAULT-
HIGH WATER TEMP
FAULT-
SHORTED COIL SENSOR
-or-
FAULT-
OPEN COIL SENSOR
FAULT-
SHORTED WATER SENSOR
-or-
FAULT-
OPEN WATER SENSOR
Table 5. Heat Pump Diagnostics
|
Jandy ® JRT Series Heat Pumps
Low or restricted water flow through the heat pump.
The external bypass valve is in the wrong position, or the water flow switch
has malfunctioned. The water flow switch opens creating a fault and the
heat pump shuts off.
When the ambient temperature is low, the suction pressure can drop
significantly.
This fault will cause the low pressure switch to open and the control will
shut off the compressor.
When the head pressure builds too high, the high pressure switch will open
causing the heat pump to shut off immediately.
The control will sense this fault condition and shut off the compressor until
the switch re-closes.
When the POOL or SPA water temperature heats to the maximum allowed
temperature or above, there could be safety risks for anyone in the water.
The water thermostat will read this temperature and the control will shut off
the heat pump unless it is in CHILLER mode.
This feature also remains active when the control calls for heat through a
remote thermostat. This is to insure that water temperature does not go
to an abnormally high level due to a possible malfunction of the remote
sensor.
In the event that the coil temperature sensor malfunctions or is not
connected the control will shut off the heat pump.
In the event that the water temperature sensor malfunctions or is not
connected the control will shut off the heat pump.
Installation and Operation Manual
DESCRIPTION