Pitco Solstice SE Series, Service Manual, Page: 52 / 72

Pitco Solstice Electric Fryers
SE Series Service Manual 52
To test the hi-limit, use a 2k ς - 5 k ς resistor to simulate a 230°F - 275°F temperature. This causes the elements to
heat continuously until the hi-limit trips or the fryer is turned off.

If testing with the computer, plug the resistor in at connector J41 behind the front panel.

If testing with the back-up thermostat behind the door, plug the resistor in at connector J43 behind the front
panel.
If the switch does not trip between the prescribed limits, it is defective and should be replaced. Once tripped, the
switch cannot be reset until the oil has cooled to approximately 375°F ±20°F. If the switch does not reset after oil
has cooled, it is defective.
Drain Valve and Return Valve Switches
These switches are a magnetically operated proximity switches. When the BLUE drain valve handle is moved to
the open position, the actuator moves away from the switch causing the switch to open. When the drain valve is
closed, the switch closes.
Opening the RED filter return valve handle closes the proximity switch, causing the “pump on” relay to be
energized; the pump begins to pump. Closing the filter return valve handle opens the proximity switch, causing
the relay to de-energize and the pump to stop pumping. These switches can be checked with a Ω meter. When the
switch is closed, there should be continuity. The normal gap between the actuator and the sensor switch on the
valve handle is 1/8 inch to 1/4 inch (3 mm to 6 mm).
Transformer
The transformer is a multiple AC input voltage and 24 VAC output voltage. It can be checked by reading the
input and output voltages. A quick check for 24 VAC is done at the relay board behind the front panel. The AC
indicator is illuminated if the F1 fuse is good and the board is receiving 24 VAC.
Elements
Each element has three coils. Check all the element coils out of circuit with an Ω meter. The resistance should
correspond to the following:
208 Volt Element 14.1-16.4 Ω
240 Volt Element 18.8-21.8 Ω
If the resistance is outside of the rating, the element needs to be changed. Also check for continuity to ground on
each end of the suspect element. There should be no continuity to ground.
Relay Board
NOTE: J connectors are marked on the relay board.
With 24 VAC supplied to pin #2 at connector J35 and a good F1 fuse, the relay board has a 24 VAC output at pin
#2 on connectors J33 and J34 and the AC indicator is illuminated.
When the board receives a 24 VDC SO input at pin #7 on connector J31 or J33, the SO indicator is illuminated,
the SO relay is energized, and there is a 24 VAC output at pin #4 on connector J32.