Pitco MGII - Basic Trouble Shooting

L22-236 Rev 0 (04/03) 8
Fryer Trouble Shooting
PROBLEM POSSIBLE CAUSE ACTION
C o ntro ller will N O T turn O N
Disp lay does N O T light
A. No power to the machine
B. F1 Fuse blown
C. T1 Transformer
A. Check building circuit breaker, verify
power cord is plugged in
B. Check F1 Fuse. Replace if defective
C. Check voltage in and out of T1
Controller indicates "IGNITION
FAILURE" or "HEAT FAIL" and
machine does NOT heat.
A. Hi limit tripped
B. Heat demand relay
C. Relay board
A. Once the oil temp has gone below
400°F +
20 °, the Hi- limit sho uld reset
auto matically, if not, replace Hi- limit
B. Check & replace if defective
C. Check & replace if defective
Machine is heating slowly A. Gas vavle not turned fully to the on
position
B. Gas shut- off (yellow handle) not fully
open
C. Quick disconnect not connected
properly
D. Low gas pressure
A. Verify that the gas valve is in the on
position
B. Verify that the yello w handle is fully
open (inline with the gas line)
C. Verify that quick disconnect is properly
connected
D. Call a qualified gas technicain
Oil is hotter or colder than computer
/co ntroller displays
A. Temperature calibration
B. Probe
C. Probe wiring terminals
A. Adjust temperature offset up to +
10°F
B. Check & replace if defective
C. Clean or repair terminals
C o ntro ller will no t turn o n o r displays
"DRAINING" or "TURN OFF"
A. Blue drain valve not fully closed
B. Sensor switch
C . Inco rrect switc h gap/a lignment
A. Check position of handle
B. Switch may be loose or have loose
wires, replace if defective
C. Check gap/alignment, replace if defective
Controller heat demand lights are lit,
machine does not heat. HD & SO
lights on relay board are lit.
A. K1 relay (relay board)
B. Gas valve
C. Ignition module
A. Check & replace if defective
B. Check & replace if defective
C. Check & replace if defective
Computer displays "PROBE
FAILURE"
A. Shorted probe
B. Open probe
C. Probe wiring terminals
A. Check probe & replace if defective
B. Check probe & replace if defective
C. Clean or repair terminals