Have changed fan relay and temperature sensor fans still will not

The Sirius SU5 Kitchen exhaust fan does not have a fuse or overload sensor. However, there are a few things you can check if you're experiencing issues with the fan:

AIR System: The Sirius SU5 exhaust fan is part of the secondary air injection (AIR) system. When the AIR system is inactive, the closed AIR control/shut-off valve prevents air/exhaust flow in either direction. If you suspect an issue, you can find the AIR PUMP fuse (usually labeled as #64, 60 amps) in the under-hood fuse box. Try pulling the fuse to see if the fan stops running. Additionally, there are two relays related to the secondary AIR pump: the AIR injection (AIR) pump relay. Check if the relay contacts are stuck together.

Cooling Fans: If the fan is running continuously, it might be related to the cooling system. Check if the cooling fans are coming on as they should. Inspect the fuses and relays associated with the cooling fans.

Temperature Sensors: Ensure that the temperature sensors are functioning correctly. Faulty sensors can cause issues with fan operation. For example, codes like P0481 refer to coolant temperature fans circuit malfunction, which could be related to wiring, the fan itself, or the ECM.

any suggested fixes for this problem? Yeah , view a wiring diagram to see what all is involved in turning on the cooling fans an test with a DVOM - digital volt ohmmeter . Free wiring diagrams here http://www.bbbind.com/free-tsb/ Enter vehicle info. year make ,model an engine . Under system click on engine , then under subsystem click on cooling fans. Click the search button then the blue link . Looking at the diagram i see three relay's - fan control , high fan control , lo fan control . All three relay's are commanded on by ther PCM - engine computer . Checking for DTC'S - diagnostic trouble code's with a scan tool . Double check your work - pinched wiring etc...... check for high speed fan relay stuck contacts .

if you are adding coolant every day then you are experiencing coolant loss
could be from a leaking pump gasket , head gasket or other leaking item
have a compression test done to check for head gasket , cracked head
next have the cooling system pressure tested to find the cooling leak
lastly check the fan, fan relay , fuses and coolant temp sensor unit for correct operation

CHECK COOLANT LEVEL MOST NEWER VECHICLE DONT HAVE RADIATOR CAP YOU HAVE TO POUR COOLANT IN THE COOLANT OVERFLOW JUG THE COOLANT WILL GO TO RADIATOR. IF THE COOLANT OVERFLOW JUG EMPTY ADD COOLANT UNTIL COOLANT LEVEL STOP DROPPING AT STAY AT FULL COLD MARK.IF COOLANT OKAY,NEED TO REPLACE THERMOSTAT AND COOLANT OVERFLOW JUG PRESSURE CAP. IF ALL BEEN DONE. MOST OF THE TIME WHEN CAR OVERHEATING WHILE MOVING. RADIATOR CORES STOPPED UP OR RADIATOR GRILLE DIRTY OR RESRICTED.ENGINE BLOCK COOLANT PASSAGES CLOGGED AND HEATER CORE CLOGGED.CHECK WATER PUMP SEE IF WATER PUMP WEEP HOLE LEAKING IF SO REPLACE WATER PUMP.IF ENGINE OVERHEATING AT A LONG TRAFFIC LINE ENGINE COOLING FANS NOT RUNNING EITHER COOLING FANS FUSE AND RELAYS BAD.OR ENGINE COOLANT TEMPERATURE BAD. THE ENGINE COOLANT TEMPERATURE SENSOR TURNS ON COOLING FANS AT A CERTAIN TEMPERATURE IF SENSOR BAD FANS WONT TURN ON. MAKE SURE YOU HAVE 50 /50 MIXTURE OF COOLANT AND WATER IN COOLING SYSTEM.

The most common overlook thing is you got a air pocket, so before you go spend your money turn Heather on full blast, open the radiator cap, car running look for air bubbles, takes patience cause you got to wait for the thermostat to open up, you must refill the coolant really really slow snail pace, some car have a bleeding valve others have two chamber on the overflow bottle,good luck, if that doesn't work change the thermostat first and if that doesn't work I'm afraid you may need to replace water pump. . water pump

You need to get the cooling fan checked,it may need a temperature sensor,fan relay or the fan motor may be burnt out.You can check the fan by running your own power and ground to the plug that comes out of the fan motor,unplug it and put the ground to the black wire and positive power to the other one,if it works then the next step would be to check the fan relay.The most common problem if the fan doesn't work but can be made to work with jumper wires is the temperature sensor,you can check it by unplugging it and jumping the wires in the plug.If the rad fans work then you are down to either the water pump or a plugged radiator,a rad shop should be able to narrow it down for you.

Make sure the cooling fans are working,and yes,it still can be a head gasket,or a head problem.

Items to check out Cooling fans , Cooling fan relays
coolant temperature sensor,Water pump, coolant mixture.

have u changed the temp sensor it located on the right of the pump usally if u dis connect the senor the fan will kick on